CKRA4810 Crydom - Relays

CKRA4810 Description

CKRA4810 is a 480 V, 10 A solid state relay made by Crydom. It is widely used for heater control, motor switching, lighting and process equipment where mechanical contacts would wear out.

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Summary of Features

Target Applications

Crydom CKRA4810 is used for switching AC loads in industrial heating and temperature control (ovens, furnaces, plastic molding and extrusion machines), packaging and food processing equipment, lighting control, HVAC systems and industrial automation.

Key Specifications

Crydom CKRA4810 is a 10 A slim DIN-rail solid state relay (CKR48 Series, 22.5 mm wide, 48-530 VAC), SCR output, AC control (90-280 Vrms), zero-cross turn-on, LED input indicator. Source: Crydom CKR48 Series datasheet. Values at 25°C unless noted.

Parameter	Value
Output
Operating voltage (47-63 Hz)	48-530 Vrms
Maximum load current	10 Arms
Transient overvoltage	1200 Vpk
Minimum load current	0.15 Arms
Maximum surge current (16.6 ms)	120 Apk
Maximum on-state voltage drop @ rated current	1.6 Vpk
Maximum off-state leakage @ rated voltage	10 mArms
Minimum off-state dv/dt	500 V/µs
Maximum I²t for fusing (8.3 ms)	60 A²s
Switching type	zero-cross turn-on
Input
Control voltage range	90-280 Vrms
Turn-on / turn-off voltage	90 Vrms / 10 Vrms
Typical input current	2 mA @ 120 Vrms, 4 mA @ 240 Vrms
Maximum turn-on / turn-off time	10 ms / 40 ms
General
Dielectric strength, input/output/base	4000 Vrms
Ambient operating temperature	-40 to 80°C
Weight (typical)	10 oz (280 g)

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