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WST-3PM
Winston
■ MCU( Microprocessor Control Unit )Based
■ Convenient installation
■ Full mode function:easy to set
■ Three Integral Current Transformers
■ Full cover protection Function
■ Wide Current Range protection
■ Built-in digital ammeter
■ Total running time display
■ Bar-Graph monitoring on impending overload trip
■ Selectable time-current characteristics[Inverse/Inverse based on thermal Memory (Thermal Inverse) /Definite]
■ 4~20mA current loop communcations
■ Test Function
■ Operates in wide ambient temperature range
■ Selectable Fail-safe Operation/ No volt Release(FS:ON
1. over current
2. phase loss
3. locked rotor
4. phase reversal
5. phase unbalance
6. 3 phase monitor
7. under current
8. under current
| Protective Item | Trip Time |
| Over-current | O-TIME |
| Under-current | Preset Ut time |
| Phase Reversal | 0.1~0.3 sec |
| Phase Unbalance | within 5 sec |
| Ground Fault | Preset Et time |
| Locked Rotor | 0.5 sec after d-time |
| Stall | 0.5 sec |
| Output | 4~20ml |
| Current Setting Range | Over-Current(oc) | 0.5~6.3A | |
| 5~63A | |||
| Over 63A with External CTs | |||
| Under-Current(uc) | 0.5~60A | ||
| Time Setting | Starting Delay Time(dt) | 0.2~60sec | |
| Over-Current Trip Time(ot) | Definite Time | 0.2~30sec | |
| Inverse Time | 0.2~60sec | ||
| Under-Current Trip Time(ut) | 0.5~30sec, definite time characteristics, if "uc" mode selects OFF, then ut is automatically disabled OFF. | ||
| Tolerance | Current | ±5% | |
| Time | ±5% | ||
| Control Power | 110±15%, 220VAC±15%, 380VAC±15%, 50/60Hz | ||
| Output Relay | OL | 2-SPST | 3A/250VAC, Resistive |
| Display | 7-Segment LED | 3phase current,Trip cause, Operating hou | |
| Bar-Graph | Load factor for current setting(50~100%) | ||
| Time-Current Characteristic | Definite / Inverse | ||
| Mounting | 35mm DIN-Rail / Panel | ||
■ MCU( Microprocessor Control Unit )Based
■ Convenient installation
■ Full mode function:easy to set
■ Three Integral Current Transformers
■ Full cover protection Function
■ Wide Current Range protection
■ Built-in digital ammeter
■ Total running time display
■ Bar-Graph monitoring on impending overload trip
■ Selectable time-current characteristics[Inverse/Inverse based on thermal Memory (Thermal Inverse) /Definite]
■ 4~20mA current loop communcations
■ Test Function
■ Operates in wide ambient temperature range
■ Selectable Fail-safe Operation/ No volt Release(FS:ON
1. over current
2. phase loss
3. locked rotor
4. phase reversal
5. phase unbalance
6. 3 phase monitor
7. under current
8. under current
| Protective Item | Trip Time |
| Over-current | O-TIME |
| Under-current | Preset Ut time |
| Phase Reversal | 0.1~0.3 sec |
| Phase Unbalance | within 5 sec |
| Ground Fault | Preset Et time |
| Locked Rotor | 0.5 sec after d-time |
| Stall | 0.5 sec |
| Output | 4~20ml |
| Current Setting Range | Over-Current(oc) | 0.5~6.3A | |
| 5~63A | |||
| Over 63A with External CTs | |||
| Under-Current(uc) | 0.5~60A | ||
| Time Setting | Starting Delay Time(dt) | 0.2~60sec | |
| Over-Current Trip Time(ot) | Definite Time | 0.2~30sec | |
| Inverse Time | 0.2~60sec | ||
| Under-Current Trip Time(ut) | 0.5~30sec, definite time characteristics, if "uc" mode selects OFF, then ut is automatically disabled OFF. | ||
| Tolerance | Current | ±5% | |
| Time | ±5% | ||
| Control Power | 110±15%, 220VAC±15%, 380VAC±15%, 50/60Hz | ||
| Output Relay | OL | 2-SPST | 3A/250VAC, Resistive |
| Display | 7-Segment LED | 3phase current,Trip cause, Operating hou | |
| Bar-Graph | Load factor for current setting(50~100%) | ||
| Time-Current Characteristic | Definite / Inverse | ||
| Mounting | 35mm DIN-Rail / Panel | ||
