CD4850W3U Crydom - AC-DC Power Systems

CD4850W3U Description

The Crydom CD4850W3U is a power supply, rated for 480 V and 50 A. Typical uses include temperature control of heaters, packaging and plastics machinery, and general industrial load switching.

USComponent (Young & New Century LLC) supplies power modules, thyristors, diodes and other industrial components, including legacy parts. Contact us for a quote on the CD4850W3U, and please confirm ratings against the datasheet before ordering.

Summary of Features

Target Applications

Crydom CD4850W3U 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 CD4850W3U is a dual-channel panel-mount solid state relay (Evolution Dual Series), 50 A per channel, 48-600 VAC, SCR output, DC control 4-32 VDC, zero voltage turn-on, 4-pin connector accepting screw terminals, output terminals A channel top, B channel bottom. Source: Crydom Evolution Dual Series datasheet. Values at 25°C unless noted.

Parameter	Value
Output (per channel)
Operating voltage (47-440 Hz)	48-600 Vrms
Load current range	0.15-50 Arms
Transient overvoltage	1200 Vpk
Maximum off-state leakage @ rated voltage	1.0 mArms
Minimum off-state dv/dt	500 V/µs
Maximum 1 cycle surge current (50/60 Hz)	710/750 Apk
Maximum on-state voltage drop @ rated current	1.3 Vpk
Thermal resistance junction to case (Rjc)	0.33 °C/W
Maximum I²t for fusing (1/2 cycle, 50/60 Hz)	2520/2320 A²s
Input
Control voltage range	4-32 VDC
Minimum turn-on / turn-off voltage	4 VDC / 1.0 VDC
Typical input current	10 mA @ 12 VDC
Maximum turn-on / turn-off time	1/2 cycle / 1/2 cycle
General
Dielectric strength, input/output/base	4000 Vrms
Ambient operating temperature	-40 to 80°C
Weight (typical)	3.0 oz (86.5 g)

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