DC/AC Power Inverter,Power inverter,inverter,Frequency Converter.converter.

Power inverter feature:
PWM TECH inverter;
Output servo-regulated(not affected by battery);
W/overload protector;
Automatic charging;
W/weak (low) bat, sensor;
Clip reverse warning.

Main Technical Data of power inverter:
Rated Output Power: From 100W ~ 2000W are available
Output Peak Power: From 200W ~ 2000W
Output Voltage: 220V+-1%
DC Input Voltage: 12V, 24V, 48V, -15%, +30%
Output waveform: Sine wave

Ordinary power inverter: Upon start, battery newly used is stronger, invert AC output will have higher voltage; When battery already in used for few minutes, it weakens, then AC output have lower voltage; This means AC output is not steady thereby will affect your appliances; To solve this problem, we have applied the latest PWM technology in our inverter; Our revolutionary PWM TECH inverter with servo control system provides regulated AC output- lets your appliance have good performance.

Weak(low) battery sensor
If battery already weak(low voltage) and still request inverter same performance output. That inverter will easily breakdown (damage).

Proximity Sensor Proximity Switch

Solve your most difficult sensing applications with one of JEENDA CONTROL's proximity sensors. We have an extensive selection of inductive, capacitive and special purpose proximity sensors to solve your metal and non-metal sensing needs.
Our Sensors included:
Proximity Switch
Inductive proximity switch
Capacitance proximity switch
Photoelectric sensor
Optic screen sensors
Color code sensor
Speed Sensor
Hall Sensor
Area secure sensor
Reed Sensor
Optic Fiber sensors
Proximity Sensor

Thyristor (SCR) and Rectifier Diode

We are a special manufacturer and exporter of various kinds of Thyristor, such as KP Phase Control Thyristors, Fast-Turn-off Thyristor, High Frequency Thyristor, Rotation Thyristors.
The main model include the following:
1) Stud type phase control thyristers or silicon control rectifier (SCR), 5A~500A, 100V~5000V, hermetic metal case with ceramic insulator and hermetic glass-metal seal selectable.
2) Disc type phase control thyristor or silicon control rectifier (SCR), 5A ~ 5000A, 100V ~ 5000V, hermetic metal case with ceramic insulator.
3) Rotary type phase control thyristor or silicon control rectifier (SCR), 300A ~ 500A, 600V ~ 2000V.
Features
IV (AV)=5-5000A
V DRM/V RRM=100-5000V
Hermetic metal case with ceramic insulator
Hermetic glass-metal seal
Conform to national standard GB4940-1985
In accordance with IEC international electrical committee standard
Typical applications
DC motor controls
Controlled DC power supplies
AC switch and thermal control
Synchronous motor excitation
Our stud and capsule or disc type of rectifier diodes and thyristors are enjoying very brisk demand in India (DO4, DO5, DO8, DO9) Russia (T161), Korea and Poland etc.
OEM and ODM are welcome.
Our professional service will offer you 100% satisfactory!
Thyristor (SCR) and Rectifier Diode

Proximity Sensors and photoelectric switch,hall sensors,Color sensors supplier from china.

Inductive Proximity Sensors (proximity switches)
Capacitive Proximity Sensors (proximity switches)
Photoelectric Sensors (photoelectric switches)
Hall Sensor(hall effect sensor)
Induction Linear Sensor
Speed sensors
reed switches
area secure sensor
color sensors.
AC-DC universal approach switch
E2E and PR series proximity switches
Area secure sensor
Optic fiber sensors
Safety explosion-proof proximity switches

All our sensors for your different application. You can check detailed specification for your requirements and also can ask us for help. sales@jeenda.com

SSR for computer-controlled light modulation stand

Our light modulation SSR is specially designed for all kind of light modulation stands. It's composed of optoelectronic coupler input circuit with high anti-interference performance and double SCR inverse parallel AC switch power output circuit, which possesses high dv/dt, didt capability. Its electronic ceramic insulating piece has good thermal conduction performance and high insulating capability. Viso≥2500V. The advanced "vacuum+H2" welding technology and SMT mounting art contribute much to the best performance of this SSR.

SR Series 1-7KW 3-phase electric motor forward and reverse rotation SSR

Introduction


This is a newly-designed SSR used for the control of forward and reverse rotation of electric motor; it is suitable for 3-phase inductive electric motor (P≤7000Wa). The built-in electronic lockdown circuit can effectively avoid the simultaneous conduction of SSR forward switch and reverse switch. The LED display the rotation direction of the 3-phase motor, green LED indicates forward direction and red LED indicates reverse direction. Its adoption of thyristor inverse parallel technology and built-in pressure responsive resistor over-voltage absorbing circuit has a strong over-voltage enduring capability, durable and stable.

Two models are available for this product, one choice is 2-controls of 3-phase, two terminals connect to the thyristor phase-shift switch, the other one is SC (short circuited). Another choice is 3-controls of 3-phase, all the 3 terminals connect to thyristor switch, which has a better performance than the former one.


Features
1. Forward and reverse control of 3-phase inductive motors.
2. AC 530V, insulating voltage≥1400V.
3. dv/dt＞500V/m S.
4. Built-in input electrical lock function.
5. LED input display.
6. Input/output insulating voltage: 2500V.
7. “Vacuum+H2” welding technology.
8. Input: DC 10-30V, AC 115V.
9. Double SCR inverse parallel power output units.

Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our solid state relays. You also can visit our website http://www.jeenda.com/

SCR power regulator

our Three phase SCR power regulator feature,

1.The SCR unit attached with high speed fuse in order to prevent the damage of SCR due to the shortage current (di/dt).2.The unit is packaged instruction with less dimension, easy for installation and wiring.3.The causes of malfunctions can be indicated by individual LED lamp, easy for trouble shooting.4.Less non-linearity output provides accurate control of temperature.5.High quality and high technical productions with no electrical interference.
6.4-20mA,1-5VDC,2-10VDC,0-10VDC input control, It also can be adjust the input control mode automaticly.
7.Rate current from 50A to 170A, rated power from 30KW to 110KW
8.Attached specification of our three phase SCR power regulator.


Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our SCR power regulator.
You also can visit our website http://www.jeenda.com/

Power semiconductor module

Product Description »

Jeenda, a professional China power module manufacturer. More types of power modules required, please see our online catalogue. If you can not find a suitable power modules from our catalogue, our R&D team can design a custom-made power modules to meet your request. Jeenda, your best partner of power modules.

Our power modules has been exported to many countries and received good response. Compared with those power modules provided by other manufacturers, our power modules are superior in quality and more competitive in price. Therefore, our power modules enjoy high reputation in foreign and domestic market. As a manufacturer of power modules, we welcome your detailed inquiry for them and believe we are capable of serving you better in this field.

Our power modules covering as below:

Single diode module
Dual diode module
4 diode module (single phase bridge rectifier)
5 diode module (bridge rectifier with forwarding)
6 diode module (three phase bridge rectifier)
Single thyristor module
Dual thyristor module
3 SCR module (special for weldering machine)
6 or 8 SCR intelligent module (shift controller)
Thyristor and diode module

We do hope our professtional products meets your demand and looking forward to your specific inquiry!

Our professional service surely offer you totally satisfactory.

AC Regulated Power Supply (JJW)

Jeenda, a professional China AC regulated power supply manufacturer. More types of AC regulated power supply required, please see our online catalogue. If you can not find a suitable AC regulated power supply from our catalogue, our R&D team can design a custom-made AC regulated power supply to meet your request. Jeenda, your best partner of AC regulated power supply.

DJW(SVC) series single-phase high accuracy full automatic AC regulated power source.

Main Features:
Application: It is suitable in computer network project, electronic instruments, armarium, research institute, measurement and test device, factory test board and so on.

Technical parameter:
Input voltage stabilizing rage 180~260V+-3%
Suitable input range 160-280V
Frequency 50H+-5%
Output voltage 220V+-1%
Power source voltage effect =+-1%
Load effect =+-1%
Waveform distortion =5%(Additional)
Response time =50ms
Efficiency =92%(full load)
Peak absorption input 300V/3us peak output =30V
VF noise =50db
Over-voltage alarm protection =246V+-4V(output)

Output current: 2.3A, 4.5A, 6.8A, 9A, 13.5A, 22.5A, 32A, 40A, 60A, 80A, 120A, 160A

Miniature Din-Rail Single Output Switching Power Supplies

Single output industrial din rail power supply:

. Universal AC input/Full range
. Protections: Short circuit / Overload / Over voltage
. Cooling by free air convection
. Can be installed on DIN rail TS-35/7.5 or 15
. NEC class 2 / LPS compliant (12V, 24V, 48V only)
. LED indicator for power on
. DC OK relay contact
. No load power consumption<0.75W
. 100% full load burn-in test
. 20W, 40W and 60W available, 100W is under development

Switching power supply (5W to 3000W)

Jeenda is a specialist of switching power supply in China, our product range from 5W to 3, 000W, including AC/DC, DC/DC standard, modified standard and custom-design switching power supplies, and all of our products are of high quality guarantee, OEM/ODM is welcome and can been done in our company.
Following please see our products catalogue: 1) Universal Switching Power Supply Single Output: SKS-12; SKS-15; SKS-35; SKS45; SKS-50; SKS-100; SKS-100T; SKS-145; SKS-201; SKS-201T; SKS-250; SKS-250T, SKS-350; Dual Output: SKD-30; SKD-30G; SKD-50; SKID-50; Triple Output: SKT-30; SKT-50; SKT-70
2) Standard Switching Power Supply Single Output: SKS-25; SKS-40; SKS-60; SKS-70; SKS-100F; SKS-150; SKS-200; SKS-240; SKS-320; Dual Output: SKD-60; SKD-70G; SKD-120; Triple Output: SKT-40; SKT-60; SKT-120: Quad Output: SKQ-60; SKQ-120; SKQ-180
3) PFC Function Switching Power Supply HSP-75; HSP-100; HSP-150; HSP-200; HSP-320; HSP-501; HSP-750; SKSP-500
4) PFC with Parallel Function Switching Power Supply HPSP-300; HPSP-500; HPSP-1000; HPSP-1500
5) Parallel (N+1) with PFC Function Switching Power Supply HSCP-600; HSCP-800; HSCP-1K2; HSCP-2K4
6) Universal Large Power Switching Power Supply HSCN-600; HSCN-800; HSCN-1200; HSCN-2000
7) DIN-Rail Switching Power Supply HDR-45; HDR-75; HDR-120; HDRP-240; HDRP-480S
8) Open-Frame Switching Power Supply HPS-25; HPS-45; HPS-65; HPD-25; HPD-45; HPD-60
Jeenda-SMPS comply with ROHS standard, all products following ISO9001 quality management system. If you are interested in our SMPS, please contact us immediately, we will try our best to meet your requirement.

Dual solid state relay and quad solid state relay are available

Our Dual and Quad 4 pin header connectors solid state relay are available

Our Dual 2 pin header connectors and Quad 4 pin header connectors (2 from A & 4 form A) solid state relay are available

2 form A Dual solid state relay

Features
• Two independent AC output solid state relays in one
standard package.
• Enhanced noise immunity (designed to meet level 3 requirements of
European EMC Directive).
• Inverse parallel SCR outputs.
•25A,40A,50A,60A Max rms triac outputs.
• Choose from 5-15 VDC or 17-32 VDC input control.Load 24-240VAC & 40-480VAC are available.
• Zero voltage and random voltage turn-on versions.
• 2500V rms optical isolation.
• Quick connect style terminals.

Engineering Data
Form: 2 Form A (2 SPST-NO).
Duty: Continuous.
Isolation: 4000V rms input-to-output;
2500V rms input or output to ground.
Capacitance: 8.0 pf typical (input to output).
Temperature Range:
Storage: –40°C to +100°C
Operating: –40°C to + 80°C
Case Material: Plastic, UL rated 94V-0.
Case and Mounting: Refer to outline dimension.
Termination: Refer to outline dimension.
Approximate Weight: 3.5 oz. (98g).



4 form A quad solid state relay

Features
• Four independent AC output solid state relays in one standard package.
•20A,25A,40A Max rms triac outputs.
• 4-15 VDC input control.Load 24-240VAC & 40-480VAC are available.
• Zero voltage and random voltage turn-on versions.
• 2500V rms optical isolation.
• Quick connect style terminals.

Engineering Data
Form: 4 Form A (4 SPST-NO).
Duty: Continuous.
Isolation: 2500V rms input-to-output-to-ground.
Capacitance: 10.0 pf maximum (input to output).
Temperature Range:
Storage: –40°C to +125°C
Operating: –40°C to + 80°C
Case Material: Plastic, UL rated 94V-0.
Case and Mounting: Refer to outline dimension.
Termination: Refer to outline dimension.
Approximate Weight: 3.5 oz. (98g).

Motor reversing Solid State Relays

*SR series Motor reversing Solid State Relays for 3-phase

*industrial motors 1KW upto 7 KW.

*Operational voltage: 480VAC Upto 530VAC rms

*High performance/low cost circuit design.

*Built-in interlock function

*AC or DC control voltage

*LED indication for direction

*Insulation:Reed relay or opt coupler(input-output)2500VAC rms

*Control voltage range:10~30 Vdc or 115 Vac

*This series with Dual SCR Power Hybrid technology provide highly*efficient thermal management for greatly increased cyclic life.

Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our IGBTs.

You also can visit our website http://www.jeenda.com/

2 units,300A 1200V IGBTs

SG300-12CS1 (300A ,1200V) IGBTs.

Cross reference SEMIKRON SKM300GB128D

* 2 units,300A 1200V IGBTs
* SPT chip (soft-punch-through) we adopt ABB SPT chips and VLO-180 welding system made in Germany
* MOS input contro

l* Ultra thin IGBT chip, great current, low loss, low tail current
* Low VCE (sat) saturated voltage, positive temperature coefficient at high temperature
* High switch frequency, low switch loss
* High SC resistive ability
* Module creepage long distance design
* DBC insulated voltage above 2,500V RMS

Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our IGBTs.

You also can visit our website http://www.jeenda.com/

2 units,200A 1200V IGBTs

SG200-12CS1 (200A ,1200V) IGBTs.

Cross reference SEMIKRON SKM200GB128D

* 2 units,200A 1200V IGBTs
* SPT chip (soft-punch-through) we adopt ABB SPT chips and VLO-180 welding system made in Germany
* MOS input contro

l* Ultra thin IGBT chip, great current, low loss, low tail current
* Low VCE (sat) saturated voltage, positive temperature coefficient at high temperature
* High switch frequency, low switch loss
* High SC resistive ability
* Module creepage long distance design
* DBC insulated voltage above 2,500V RMS

Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our IGBTs.

You also can visit our website http://www.jeenda.com/

2 units,150A 1200V IGBTs

SG150-12CS1 (150A ,1200V) IGBTs.

Cross reference SEMIKRON SKM150GB128D

* 2 units,150A 1200V IGBTs
* SPT chip (soft-punch-through) we adopt ABB SPT chips and VLO-180 welding system made in Germany
* MOS input contro

l* Ultra thin IGBT chip, great current, low loss, low tail current
* Low VCE (sat) saturated voltage, positive temperature coefficient at high temperature
* High switch frequency, low switch loss
* High SC resistive ability
* Module creepage long distance design
* DBC insulated voltage above 2,500V RMS

Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our IGBTs.

You also can visit our website http://www.jeenda.com/

100A 1200V IGBT modules

SG100-12CS1 (100A ,1200V) IGBTs.

Cross reference SEMIKRON SKM100GB128D

* 2 units,100A 1200V IGBTs
* SPT chip (soft-punch-through) we adopt ABB SPT chips and VLO-180 welding system made in Germany
* MOS input contro

l* Ultra thin IGBT chip, great current, low loss, low tail current
* Low VCE (sat) saturated voltage, positive temperature coefficient at high temperature
* High switch frequency, low switch loss
* High SC resistive ability
* Module creepage long distance design
* DBC insulated voltage above 2,500V RMS

Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our IGBTs.

You also can visit our website http://www.jeenda.com/

75A 1200V IGBTs.

SG75-12CS1 (75A ,1200V) IGBTs.

Cross reference SEMIKRON SKM75GB128D

* 2 units,75A 1200V IGBTs
* SPT chip (soft-punch-through) we adopt ABB SPT chips and VLO-180 welding system made in Germany
* MOS input contro

l* Ultra thin IGBT chip, great current, low loss, low tail current
* Low VCE (sat) saturated voltage, positive temperature coefficient at high temperature
* High switch frequency, low switch loss
* High SC resistive ability
* Module creepage long distance design
* DBC insulated voltage above 2,500V RMS

Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our IGBTs.

You also can visit our website http://www.jeenda.com/

50A 1200V IGBTs.

SG50-12CS1 (50A ,1200V) IGBTs.

Cross reference SEMIKRON SKM50GB128D

* 2 units,50A 1200V IGBTs
* SPT chip (soft-punch-through) we adopt ABB SPT chips and VLO-180 welding system made in Germany
* MOS input control

* Ultra thin IGBT chip, great current, low loss, low tail current
* Low VCE (sat) saturated voltage, positive temperature coefficient at high temperature
* High switch frequency, low switch loss
* High SC resistive ability
* Module creepage long distance design
* DBC insulated voltage above 2,500V RMS

Pls check here download exactly catalogue or contact Jeenda sales team sales@jeenda.com and call +86 577 5678 4310 to learn more about the our IGBTs.

You also can visit our website http://www.jeenda.com/

PID Controller, Temperature Control unit

1. Measurement input signal, valve position feedback input signal can be selected at random.
2. Valve position Feedback disconnection can enter into the manual state automatically.
3. Course quantity display, setting value, control quantity display etc. Are shown triply.
4. Servo control PID regulator positive and negative function choice, can set up upper limit and lower limit of regulator independently without delay output limiting range (It can choose 'no limit' at manual way).
5. The position of switching on by manual /automatic can be kept or the position of switching on by manual can be initialized.
6. No disturbance switching over by manual /automatic and manual /automatic state indication.
7. PID parameter storage and transfer.
8. Remote manual /automatic state control, remote manual operation; Remote switch quantity control; Remote servo control PID regulator control method or when the upper part direct control is operated, the regulator can get up with the input signal automatic.

Solid State Contactor,SCR power controller,Power regulator from Jeenda Controls

Solid State Contactor is a new component of solid state contactor recently according the use made of alternating current relay upon the basis of power-solid state contractor. Assembling the radiator, defense covering, fixing pinch etc. Consisting of a function-assorted. Controlling current component. Conveniency. Substitute for the protection of alternating current relay.

SPST(single-pole single-throw)----normally Open. Adopting to single phrase load.
TPST(three -pole single-throw)------normally Open. Adopting to three phrases load.
Rating working current: 100-500A
Rating working voltage: 280V; 480V; 530V.
Switch: Over-zero leading and random leading.
Insulate voltage >=2500V;
National standard fixing pinch, equipped quick, firm;
Dual SCR anti-parallel connection power output.
Led input and display.

Solid state relay (From Wikipedia, the free encyclopedia )

Solid state relay (From Wikipedia, the free encyclopedia )

A solid state relay (SSR) is an electronic switch, which, unlike an electromechanical relay, contains no moving parts. The types of SSR are photo-coupled SSR, transformer-coupled SSR, and hybrid SSR. A photo-coupled SSR is controlled by a low voltage signal which is isolated optically from the load. The control signal in a photo-coupled SSR typically energizes an LED which activates a photo-sensitive diode. The diode turns on a back-to-back thyristor, silicon controlled rectifier, or MOSFET transistor to switch the load.

Operation

Bi-directional solid state relay with opto-isolation.
Voltage applied to the control line of an SSR causes the LED to shine on the photo-sensitive diode. This produces a voltage between the MOSFET source and its gate, causing the MOSFET to turn on. An SSR based on a single MOSFET, or multiple MOSFET's in a paralleled array works well for DC loads.
There is an inherent substrate diode in all MOSFETs that conducts in the reverse direction. This means that a single MOSFET can't block current in both directions. For AC (bi-directional) operation, two MOSFETs are arranged back to back with their source pins tied together. Their drain pins are connected to either side of the output. The substrate diodes then are alternately reverse biased in order to block current when the relay is off. When the relay is on, the common source is always riding on the instantaneous signal level and both gates are biased positive relative to the source by the photo-diode.
It is common to provide access to the common source so that multiple MOSFETs can be wired in parallel if switching a DC load. There is also commonly some circuitry to discharge the gate when the LED is turned off, speeding the relay's turn-off.

Advantages over mechanical relays
SSRs are faster than electromechanical relays; their switching time is dependent on the time needed to power the LED on and off, typically on the order of nanoseconds
Increased lifetime due to the fact that there are no moving parts, and thus no wear
Clean, bounceless operation
Decreased electrical noise when switching
Can be used in environments where a spark must not be generated during turn-on
Totally silent operation
Smaller than a corresponding mechanical relay.

Disadvantages
Fail short more easily than electro-mechanical relays
Increased electrical noise when conducting
Higher impedance when closed (-> heat production)
Lower impedance when open
Reverse leakage current when open (μA range)
Possibility of false switching due to voltage transients
Often more expensive than comparable electromechanical relays

IGBTs., Isolated Gate Bipolar Transistor modules

IGBT workshop
(IGBT) Isolated Gate Bipolar Transistor (IGBTs)
SPT IGBT Modules (Soft Punch Through Technology), range of 50A to 400A,600V 1200V 1700V,2 units.

Our IGBT Module ordering guide

Characteristic:
* SPT chip (soft-punch-through) we adopt ABB SPT chips and VLO-180 welding system made in Germany
* MOS input control
* Ultra thin IGBT chip, great current, low loss, low tail current
* Low VCE (sat) saturated voltage, positive temperature coefficient at high temperature
* High switch frequency, low switch loss
* High SC resistive ability
* Module creepage long distance design
* DBC insulated voltage above 2,500V RMS

Typical applications:
* AC and DC electric motor control
* Frequency transformer
* UPS
* Industry power supply
* Electric welding machine

Pls check our IGBT detailed specification and contact us by email
or call +86 577 56784310

SG75-12CS1(75A 1200V IGBT)
SG100-12CS1(100A 1200V IGBT)
SG150-12CS2(150A 1200V IGBT)
SG200-12CS2(200A 1200V IGBT)
SG300-12CS2(300A 1200V IGBT)

Bridge Rectifiers

We are a professtional manufacturer of bridge rectifiers as below:

1) Single phase rectifier bridge

1. Single phase diode bridge
2. Single phase half controlled diode bridge
3. Single phase full controlled diode bridge
4. Single phase press fit diode bridge
5. Diode Bridges with Fast Recovery Diodes

2) Three phase rectifier bridge

1. Three phase diode bridge
2. Three phase half controlled diode bridge
3. Three phase full controlled diode bridge
4. Three phase press fit diode bridge

3) Thyristor and rectifiers modules

1. Dual thyristor modules
2. Thyristor / diode modules
3. Dual diode modules
4. Single thyristor
5. Single diode modules
6. 3 scr module (3 thyristor module)
7.2diode,2scr bridge,1 free wheeling diode modules

Solid Sate Relay (Triacs and SCR Type)

Single phase SSR - 1A to 1200A
Dual solid state relay (2 form A)25A to 60A.
Quad solid state relay (4 form A)25A to 40A.
Three phase SSR - 10A to 500A, 600A to 1200A solid state contactors
Motor reversing SSR - 1KW to 7kW
Capacitor SSR single phase - 10A to 350A
Capacitor SSR three phase - 10A to 120A

The Solid State Relay (SSR) are a series of single-pole, two-poles(dual output),three-poles(three phase),four-poles(quad output).normally open, solid state switching devices with no moving parts, capable of tens of millions of cycles of operation. It is designed to control 120V, 240V or 480V (up to 660V) alternating current (VAC), and provides zero voltage switching and 2500VAC isolation between the load terminals and the control signal. A control signal causes the solid state relay (SSR) to switch the ac load ON or OFF just as a conventional mechanical contact switch does but with none of the problems associated with moving contact relays, such as corrosion, pitting, arcing, radio frequency interference (RFI) and bounce. The result: Much longer life for the solid state relay (SSR).

Our solid state relay is designed around a pair of SCR's mounted on a heat-spreading metal base to eliminate thermal fatigue failures. To dissipate the heat developed naturally in an solid sate relay (SSR) due to a nominal voltage drop across the device, the solid state relay must be mounted on a Finned Heat Sink (FHS), or on a metal plate of adequate size. It is advisable to install an solid state relay where the ambient temperature is relatively low because its current-switching rating is decreased as its temperature increases.

Control resistance heaters up to 40 kW use solid state relay in conjunction with lower-rated temperature controllers. Three-phase loads can be controlled using 2 or 3 SSR's. Use 3 SSR's for Y-phase loads using a neutral line. Three solid state relays are also used when there is no neutral load to provide redundancy and extra assurance of control. Two SSRs will control "delta" loads.

About Us

Jeenda Controls Co.,Ltd is one of the largest manufacturers and exporters of the Electronic Semiconductors Device Controls and low-voltage electrical appliances in China.

At this moment the Company mainly manufacture and exporter Semiconductors Device such us solid state relays,Power modules,Bridge Rectifier,Solid State AC Voltage controller,Solid State switches,Temperature Controller,SCR Control Plate etc. Motor Controls & Protection components,Industry Automatic Controls,such us MCB,MCCB,MPCB,ELCB,AC Contactors & accessories, Timer,Starters,Relays, Fuses, Push Buttons, Switches, Industrial Socket,etc. to North America, Europe, Hong Kong, South-east Asia,South-America, Mid-east, and over 30 countries & regions. Owning skilled workers, advanced equipment and strict quality control process most of our products are certified by ISO9001 UL,CSA, VDE,CE, CB, CCC. Our products are welcome well at home and abroad.

Our products have more advantages that advanced science and technology and productive equipment,best price on the basis of superior quality and favorable discount and satisfied commission, perfect after-selling services, advanced communication and contact methods.

In order to create distinguished achievement, we have insisted on "quality first, consumers first."We believe that Jeenda Controls Co.,ltd. are response for the customer,we believe in that we will do much better than before with your help. We sincerely work with your stable, reliable and long-term cooperator and enjoy every development and every success in every step together.

International Sales

Add：unit 6 Xintianyuan Group 6
Xincheng Avenue Wenzhou
325001 Zhejiang China
Tel：+86-577-56784310 / 80221899
Fax：+86-577-56667563
Zip Code: 325001
Email: sales@jeenda.com
Website:http://www.jeenda.com/
MSN：david@jeenda.com