Description
CWD2425PH Solid State Relay — BOLTON SKU 69460.
About the CWD2425PH Solid State Relay
This part belongs to the Sensata / Crydom CW24 series of single-phase panel-mount solid state relays. In the series nomenclature CWD identifies the DC-input variant, and the 2425 platform is published as a 25 A device switching AC line voltages from 24 to 280 V AC from a 3 to 32 V DC control signal. The output stage uses back-to-back (inverse parallel) SCRs, and triggering is via zero-crossing optical isolators, so the output does not begin conducting until the AC waveform passes through zero — this limits switching transients on resistive loads. An active current-limiting input circuit lets the relay be driven from a low control current, and an input LED indicates state. The panel-mount package is supplied with a removable IP20 touch-safe cover. Sensata quotes a typical MTBF above 7 million hours for the series.
Key specifications
| Series | Sensata / Crydom CW24 panel-mount solid state relay |
|---|---|
| Input type | DC control input (CWD prefix) |
| Control voltage range | 3 to 32 V DC |
| Load voltage range | 24 to 280 V AC |
| Load current rating | 25 A |
| Output device | Back-to-back (inverse parallel) SCRs |
| Switching mode | Zero-voltage turn-on |
| Mounting | Panel mount with removable IP20 touch-safe cover |
| Typical MTBF | Greater than 7 million hours |
Typical applications
Panel-mount solid state relays of this class are used for switching heaters, resistive process loads, motors and lamp banks from a controller or PLC output, in industrial control panels, test and environmental rigs and ground-support equipment. Because there are no moving contacts they are chosen where switching frequency or contact life would be a problem for an electromechanical relay. Heatsinking and load derating should be assessed against the manufacturer’s curves for the installed condition.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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