Product Description
| This product has been Discontinued |
Description: Current Monitor Relays • Type: Undercurrent • Coil Voltage: 24 VAC • Contact Configuration: 2C DPDT • Mounting: 11 Pin Plug-in • Current Range Monitored: 0.1 - 1 Amp • Current Settings: Pick-up: Fixed at 5% above adjustable drop-out setting, Drop-out: Adjustable throughout current range monitored • Drop-Out Setting: Adjustable • Indicator LED: Green when Input Voltage is applied; Red Flashing when in time delay; and Red Steady when Relay is energized.
| Product Information | Resources |
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| Specifications |
| Product Attribute | Attribute Value |
| Type | Undercurrent |
| Coil Voltage | 24 VAC |
| Contact Configuration | 2C DPDT |
| Mounting | 11 Pin Plug-in |
| Current Range Monitored | 0.1 - 1 Amp |
| Current Settings | Pick-up: Fixed at 5% above adjustable drop-out setting, Drop-out: Adjustable throughout current range monitored |
| Drop-Out Setting | Adjustable |
| Indicator LED | Green when Input Voltage is applied; Red Flashing when in time delay; and Red Steady when Relay is energized. |
| Input Voltage Tolerance | AC Operation: +10/-15% of nominal at 50/60 Hz. |
| Life | Mechanical: 10,000,000 operations, Full Load: 100,000 operations |
| Load (Burden) | Less than 5VA |
| Mounting Needs | Requires an 8 or Plug-in 11 Pin Round socket--see page 16 of Catalog. |
| Output Contacts | 10A Resistive @ 240V AC/30V DC, 1/2HP @ 240V AC, (N.O.), 1/3HP @ 240V AC (N.C.) |
| Pick-up Setting | Fixed (At +5% of Drop-Out) |
| Reset | Automatic |
| Response Times | Pick-up: Fixed 100ms, Drop-out: Adjustable 0.1-10 seconds |
| Temperature | -28° to 55°C (-20° to 131°F) |
| Series Features |
| CU Series AC UNDERCURRENT |
| Series Description: The CU Series is used to detect an undercurrent condition. The drop-out current setting is user-adjustable within one of three ranges as shown in the Product Selection Table below. An external current transformer can be used to extend the range beyond 10 amperes. The pick-up current setting is fixed at +5% of the selected drop-out setting. The relay will energize when the monitored AC current is above the pick-up setting. It will de-energize when the monitored AC current is below the drop-out setting for a period longer than the adjustable time delay (t) of 0.1-10 seconds. This delay prevents nuisance tripping caused by momentary line dips. The relay will energize when the current rises 5% above the drop-out setting. |
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