50SST240 Crydom - Relays

50SST240 Description

The 50SST240 is a solid state relay made by Crydom. Solid state relays like this switch heaters, motors, lamps and other loads quietly and without contact wear.

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Summary of Features

Target Applications

Crydom 50SST240 is used for proportional power control of resistive heaters in ovens, furnaces, plastic processing and other process heating applications.

Key Specifications

Crydom 50SST240 is an SST Series soft-start module with 50 A output (for use with Series 1 random-fire SSRs), 240 VAC line, 3.5-10 VDC control. The datasheet marks this series obsolete. Source: Crydom SST Series datasheet. Values at 25°C unless noted.

Parameter	Value
Output
Operating voltage (47-63 Hz)	180-280 Vrms
Maximum load current	50 Arms
Minimum load current	0.04 Arms
Transient overvoltage	600 Vpk
Maximum surge current (16.6 ms)	625 Apk
Maximum on-state voltage drop @ rated current	1.6 Vpk
Thermal resistance junction to case (Rjc)	0.63 °C/W
Maximum I²t for fusing (8.3 ms)	1620 A²s
Maximum off-state leakage @ rated voltage	10 mArms
Minimum off-state dv/dt	500 V/µs
Control module
Control voltage range	3.5-10 VDC

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