CD4850W2U Crydom - AC-DC Power Systems
CD4850W2U Description
Crydom makes the CD4850W2U, a 480 V, 50 A power supply. It is widely used for heater control, motor switching, lighting and process equipment where mechanical contacts would wear out.
USComponent has sourced power semiconductors for maintenance teams and OEMs since 2001. For price and availability of the CD4850W2U, send us a request for quote. Please confirm the specifications against the manufacturer's datasheet before purchase.
Summary of Features
Crydom CD4850W2U 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, key locking connector, output terminals A channel top, B channel bottom.
Target Applications
Crydom CD4850W2U 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 CD4850W2U 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, key locking connector, 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) |
Technical document (PDF) | Request a quote for CD4850W2U (reply within 24 hours)

