The TE Connectivity Crompton Instruments 253-PHDG-SHBX-C6-EC is an Under-/Over Frequency Relay, designated as ANSI 81U/O. Designed for an input of 440V AC at a frequency of 60Hz, this relay utilizes volt-free contacts for reliable operation. In practice, the over-frequency function is configured to energise on trip as standard, while the under-frequency function is set to de-energise on trip as standard. This specialized monitoring device is built for industrial applications requiring precise electrical frequency supervision and protection against abnormal grid or generator conditions. The 253-PHDG-SHBX-C6-EC ensures system safety by accurately detecting out-of-tolerance frequency fluctuations in 440V 60Hz setups.
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1100 Northwest Loop 410, Ste 700, San Antonio TX, 78213
| Manufacturer | Crompton |
|---|---|
| Country | |
| Part number | 253-PHDG - 440V/60Hz / 039-26900-6044 |
| Inner Code | 2566490 |
| Custom Code | 8536490099 |
| Product type | Under Over Frequency Relay |
|---|---|
| Manufacturer | TE Connectivity - Crompton Instruments |
| Part Number | 253-PHDG-SHBX-C6-EC |
| ANSI Designation | 81U/O |
| Product Type | Under-/Over Frequency Relay |
| Input | 440V AC |
| Frequency | 60Hz |
| Relay Type | Volt free contacts |
| Over Trip Configuration | Energise on trip (standard) |
| Under Trip Configuration | De-energise on trip (standard) |