Product Description
Description: Monitors • Current Monitor Relays • Type: Overcurrent or Undercurrent • Coil Voltage; 120 VAC • Contact Configuration ; 1C SPDT • Mounting; Surface Mount • Current Range Monitored; 2 - 20 Amps • Trip Delay; 0.5 to 50 Seconds Adjustable • Sensing Delay on Start Up; 2 Seconds • Contact Rating; 10 Amps • Connection; Terminal Block
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Type | Overcurrent or Undercurrent |
| Coil Voltage | 120 VAC |
| Contact Configuration | 1C SPDT |
| Mounting | Surface Mount |
| Current Range Monitored | 2 - 20 Amps |
| Trip Delay | 0.5 to 50 Seconds Adjustable |
| Sensing Delay on Start Up | 2 Seconds |
| Contact Rating | 10 Amps |
| Connection | Terminal Block |
| Series Features |
| Window Current Sensor ECSW Series Current Sensor |
| Series Description: The ECSW Series of single phase, AC window current sensors includes adjustable overcurrent and undercurrent trip points. Detects locked rotor, loss of load, an open heater or lamp load, a broken belt, a jam or loss of suction. LED's aid in trip point adjustment and provide fault indication. The built-in toroidal sensor eliminates the need for an external current transformer. The output can be electrically latched after a fault, or automatically reset. Remote resetting of a latched output by removing input voltage. The unit includes switch selectable zero current detection and normally de-energized or energized output operation. Time delays are included to improve operation and eliminate nuisance tripping. |
| Operation: When the input voltage is applied, sensing delay on startup begins and the output transfers (if normally energized is selected). Upon completion of the startup delay, sensing of the monitored current begins. As long as current is above undercurrent trip point and below the overcurrent trip point (inside the window), the output relay remains in its normal operating condition and both red LEDs are OFF. The green LED glows when the output is energized. If current varies outside the window, the associated red LED glows, and the trip delay begins. If the current remains outside the window for the full trip delay, the relay transfers to fault condition state. If the current returns to normal levels (inside the window) during the trip delay, the red LED goes OFF, the trip delay is reset, and the output remains in the normal condition. Reset: Remove input voltage or open latch switch. If zero current detection is selected, the unit will reset as soon as zero current is detected. Operation With Zero Current Detection Enabled: If the current decreases to zero within the trip delay period, then zero current is viewed as an acceptable current level. The units output remains in its normal operating state. This allows the monitored load to cycle ON and OFF without nuisance tripping the ECSW. Zero current is defined as current flow of less than 250 milliamp-turns. Note: When zero current detect is selected, the latching operation of switch SW2 is canceled; the output will not latch after a fault trip. |
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