电动机保护继电器 - C-Lynx继电器 HWTM 和 HWTM2 使用集成 PTC 探头检查 3 相网络的可用性和电动机的温度。 相位和温度控制功能相互独立。3 相网络控制：相序、相位故障 多电压 真均方根测量值 电动机温度通过 PTC 探头控制 带线路故障或探针短路检测功能 型号，带故障锁定功能和重置/测试 LED 状态指示 ### Crouzet Voltage, Current, Phase & Motor Protection
Motor temperature and phase control relays
Three-phase network control: phase sequence, phase loss
Multi-voltage.
Controls its own voltage supply.
Measurement in true RMS.
Motor temperature control by CTP probes.
Detection of line breakage or probe short circuit.
Version with fault memory function and reset / test HWTM2.
LED status display.
Operating voltage: | 24 V → 240 Vac / Vdc -15% / +10%
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Measuring range: | 208 → 480 Vac
Operating range: | 176 → 528 Vac
Input resistance: | 602 KΩ / line
Voltage max. of thermal detection circuit: 3.6 V T1-T2 open |
Resistance max. of thermal sensor °20 @ C: 1500 Ω |
Trigger threshold: | 3100 Ω ± 10 %
Reset threshold: | 1650 Ω ± 10 %
Delay at threshold: | 200 ms max. phase
| 1 s max. temperature
Output: | 2 x N/O relays
Cut-off current max.: | 5 A AC / DC
Cut-off current min.: | 10 mA / 5 Vdc
Enclosure: | 35 mm
Operating temperature: | -20 °C → +50 °C
Approvals: | UL, CSA, GL, GOST, WEEE