Description
Crydom H12WD4850-5727 SSR Zero Cross Relay Panel 480V 90A w/ Stainless Heatsink
This is an assembly of 10 Crydom H12WD4850-5727 solid state relays mounted on a large 42" x 8" stainless steel heatsink panel, pre-wired with a color-coded wiring harness. Each relay is a zero cross (zero switching) SSR rated for 480V AC output and controlled by a 5–32V DC input signal. A thermal cutout device is mounted directly on the heatsink to provide thermal protection for the assembly.
Specifications & What's Included
- Brand: Crydom
- Relay Model: H12WD4850-5727
- Quantity of Relays: 10 (arranged in two rows of 5)
- Output Voltage: 480V AC
- Output Current: 90A (combined assembly rating per original listing)
- Control Input Voltage: 5–32V DC
- Switching Type: Zero Cross (Zero Switching)
- Heatsink Material: Stainless Steel
- Heatsink Dimensions: 42" x 8"
- Wiring harness: included, color-coded (red, blue, yellow leads visible)
- Thermal cutout/thermostat: mounted on heatsink panel (visible in photos)
- Phase: Single Phase
- Mounting: Panel-mounted assembly
Applications
Crydom solid state relays are widely used in industrial automation, heating systems, packaging equipment, injection molding machines, and process control applications where reliable, fast, and electrically isolated AC load switching is needed. Zero cross switching SSRs turn on when the AC voltage crosses zero, which reduces electrical noise and extends the life of resistive loads such as heating elements — making them a common choice in thermal process control systems, industrial ovens, and plastics processing equipment. This pre-assembled panel format, with multiple SSRs mounted on a common heatsink and pre-wired, is typical of custom OEM control panel builds where a bank of independently controlled AC circuits must be switched from a low-voltage DC control signal. Crydom (now part of Sensata Technologies) has been a leading manufacturer of solid state relays since the 1970s, and their H-series panel-mount SSRs are a well-established product line used across a broad range of industrial control systems.
This Crydom H12WD4850-5727 solid state relay panel has been inspected and appears to be in good used condition. The 10 SSRs are mounted securely on the stainless steel heatsink and show normal wear from prior industrial use. The wiring harness is intact and the relay housings are clear and undamaged. A thermal cutout device is visible and attached to the heatsink surface. The assembly has not been powered or tested at our facility but was pulled from a working industrial environment. Please view our photo set and contact us if you have any questions. Please note: We have multiple units in stock — yours may not be the one shown in the photos, however, it will be similar in condition and function.
Warranty Information
Additional Information
Brand: |
Crydom |
Model: |
H12WD4850-5727 |
MPN: |
H12WD4850-5727 |
Type: |
Solid State Relay Panel Assembly |
SKU: |
45999 |
Switching Type: |
Zero Cross (Zero Switching) |
Output Voltage: |
480V AC |
Output Current: |
90A |
Input Voltage (Control): |
5-32V DC |
Number of Relays: |
10 |
Relay Series: |
H12WD4850 |
Heatsink Material: |
Stainless Steel |
Heatsink Dimensions: |
42 x 8 inches |
Mounting: |
Panel / Heatsink Mounted |
Phase: |
Single Phase |
Thermal Protection: |
Thermal cutout / thermostat (visible on heatsink) |
Condition: |
Used – Inspected |
Seller Notes: |
Includes 10 Crydom H12WD4850-5727 SSRs mounted on 42x8 stainless steel heatsink with wiring harness |
Country/Region of Manufacture: |
United States |
Condition Notes: |
Crydom H12WD4850-5727 SSR relay panel, used, inspected. 10 relays intact on stainless heatsink, wiring harness present. Not bench-tested at our facility; pulled from working environment. Photos available. |
