Single Phase Solid State Relay

Make sure the solid state relay heat emission, you can match the radiator according to your load current. For more information, please contact our customer service.

Light Weight solid state reversing relay ST5-5DD

SPECIFICATIONS :

OPERATION NOTICE: Resistive load could not exceed 60% of the rated current. Inductive or capacitive load could not exceed 40% of the rated current. Electric machine load could not exceed 20% of the rated current. Proper radiator adapted to the working requirement of solid state relay should be equipped, the allowance should be widened when the load radiating condition is not so good. Short-circuit load is not allowable. Over current protection: over current and short circuit are the main reasons for permanent damage of output controllable silicon in the SSR, and using fast fuse and air switch is one of methods for over current protection, fuse is also available for small capacity. Over voltage protection: It can adopt parallel voltage-dependent resistance(MOV), the MOV area decides the absorption power, while its thickness decides the protective voltage value, generally, 471/10D voltage-dependent resistance for 220V series SSR, 681/10D voltage-dependent resistance for 380V series SSR, 821/10D voltage-dependent resistance for 480V series SSR.

APPLICATION:

SSR serious solid state relay flame resistant engineering plastic case, epoxy resin encapsulation, screw thread educing terminal connection with high strength structure, impulse resistance, high shock resistance performance, small driving current for input terminal and convenient connection with computer terminal and digital control circuit, the product is widely used in automation control fields such as petroleum, chemical industry, instrument and meter, pharmacy machine, food machine, packaging machine, textile machine, plastics machine, numerical control lathe, entertainment facility, etc., especially for severe environment full of corrosion, moisture and dustproof or requiring explosion-proof unfavorable conditions or switching on-off frequently conditions.

Index table of Solid State Relay

Please confirm the practical working voltage load power and control method before selecting, make sure that the load current does not exceed the allowance of SSR.

Single Phase: Resistive load power (KW) *9=Ampere of SSR

For example: suppose the resistive load power is 3KW,we should select the SSR Ampere ›27A

Three Phase: Resistive load power (KW)*3= Ampere of SSR

For example: suppose the resistive load power is 3KW,we should select the SSR Ampere ›9A

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