Single phase Intelligent Solid state relay(ISSR-25DA)

Single phase Intelligent Solid state relay(ISSR-25DA)

load current: 25A

Load voltage: 24-480VAC

control voltage: 3-48VDC

Control current: 3-20mADC

Dielectric Strength: 2500VAC

Work indicator light: Double LED:(Green:Work;RED:The fault)  

Shell material:Metal    

Weight:50g

BASIC CONCEPT OF INTELLIGENT SOLID STATE RELAY

Intelligent Solid State Relay refers to that the solid state relay itself can make reasonable induction analysis, judgment and effective, quick response and effective treatment on current, voltage and temperature for the objective conditions, full protection solid relay body and the load security, as well as comprehensive ability to operate with high rlibility.

ModelISSR-25DA
Load Current25A
Load Voltage24-480VAC
Product picture
Control Voltage3-48VDC
Control Current3-20mADC
On Voltage≤ 1.5VAC
Off-state Leakage Current≤ 4mA
Time Off≤ 10ms
Dielectric Strength2500VAC
Insulation Resistance100MΩ/500VDC
Ambient Temperature-25~+75℃
Mounting MethodsM4 Bolted fixed
The work instructionsDouble LED: (Green:Work;RED:The fault)
Weight50g
Overall dimensions


CHARACTERISTICS OF INTELLIGENT SOLID STATE RELAY

● Intelligent solid state relay has ultra small volume, metal aluminum alloy shel! exquisite and beautiful appearance, and same installation site with current general electronic solid state relay, as well as direct replacement.

● Intelligent solid state relay can perform automatic sensing on device working state. for example, the load causes leakage and increases the operating current, local short-circuit phenomenon or insufficient heat dissipation condition causing the temperature of the solid relay body rise rapidly, and extreme super heating phenomenon. When the phenomenon occurs, the temperature control of the intelligent micro power control chip of the intelligent solid state relay can automatically reduce the turn-on current of the power device and achieve the thermal balance work, so as to ensure the safety and stability.

● Intelligent solid state relay has ultra wide control voltage, the switch can be started only when the input voltage is very small, meanwhile. it has good compatibility with computer, SCM and other integrated circuits.

● Intelligent solid state relay adopts advanced soft start mode, and has strong anti current impact capability.

● Isolation withstand voltage of intelligent solid state relay is up to 5000V, which can greatly improve safety and prolong service life


TEMPERATURECOMPARISON TABLE (TABLE1 TEMPERATURE THERMAL PROTECTION)

The green line represents the intelligent solid state relay

● Adjust the load current automatically when temperature achieve more than 110 degree centigrade, Reduce power output to reach thermal equilibrium, so there is no moderate thermal breakdown, service life can be increased.

● When reused next time, intelligent solid state relay’s electrical property can recover automatically, while the ordinary solid state relay can’t be resume normal work after the temperature is more than 110 degree centigrade.

TABLE2: HEAT BALANCE INSIDE OF THE SHELL- INTELLIGENT BALANCE OF THE ENVIRONMENTAL TEMPERATURE

● When Ordinary solid state relay and temperature control switch is working, it produce over temperature protection and turn off the power supply automatically, will cause the intermittent work of output power.

● When the I-SSR works, will have the thermal equilibrium function while produce over temperature to ensure continous work.


Precautions:

● When selecting a product, there should be a margin in the current grade according to the nature of the load. (For resistive load, it can be selected according to 50% of the load current. For inductive or capacitive load, it can be selected according to one-third of the load current).

● According to the relationship between load current and ambient temperature, when the ambient temperature is high or the cooling conditions are not good. The current capacity should be increased, the volume of the radiator should be increased, or forced air cooling should be added if necessary. In order to prevent short-circuiting of the load during use, it is required to connect a fast disconnect switch or a fast fuse corresponding to this product in series in the load circuit.

● During installation, the contact surface between the radiator and the product must be flat and clean, and a layer of heat-conducting silicone grease should be evenly coated on the surface, and then tightened symmetrically with the fasteners attached to the product to achieve the best heat dissipation effect.


Dimensions

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