Eaton / Cutler-Hammer WMS3B20 Supplementary Protector
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See full specsEaton / Cutler-Hammer WMS3B20 - 20A 3 Pole Supplementary Protector
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Description
Part of the legacy WMS series, this 20-amp supplementary protector is engineered for sensitive industrial applications requiring a B-curve trip characteristic. The three-pole unit secures onto standard DIN rail systems, offering UL 1077 recognized protection for control circuits and OEM panels. With a 10kAIC rating at 240VAC and current-limiting functionality, it serves as an exact dimensional and functional replacement for the WMZS3B20 and FAZ-B20/3-NA.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | WMS3B20 |
| Series | WMS |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC, 415VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 480Y/277VAC, 10kA @ 415VAC |
| Frame Type | WMS |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail Systems, OEM Panels |
| Wire Gauge | 18-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 18 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | B |
| Trip Adjustability | Fixed |
| Available Options | Auxiliary Switch, Bell Alarm, Shunt Trip, Undervoltage Release, Busbar System |
|---|---|
| Standards | CSA C22.2 No. 235, IEC 60947-2, UL 1077 |
| Approval | CE, CSA, UR |
| Temp Rating | -25C to 55C |
| Construction Features | Current Limiting, Visual Trip Indicator |
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