Description
Time Mark 253 Reverse Phase Relay
![]() | 3 Phase Power
|
The Model 253 Reverse Phase Relay is a solid-state sensing device designed for installation in equipment using 3-phase power. This unit is used where it is desirable to have a contact closure indicating that the proper phase rotation sequence has been applied.
The relay closes when the proper sequence (A B C) is applied, but will remain open if any two phases are reversed. If reverse phasing occurs during operation, the relay also de-energizes. The Model 253 has a special industrial grade relay designed for low power consumption. The A B C indicator will be illuminated when the proper phase rotation sequence is applied.
| Typical Application | Dimensions |
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Three Phase Monitor Relays | |
|---|---|
| 3-Phase Monitor Relay Function | Phase Reversal Only |
| Max Nominal Phase to Phase Voltage (monitors) | 480 VAC |
| Min Nominal Phase to Phase Voltage (monitors) | 208 VAC |
| Electrical Approval (monitor relays) | CSA, UL |
| Time Mark Mounting | 8-pin |
Product General Attributes | |
| Warranty | 5 YEARS |
| Warranty Details | This product is warranted to be free from defects in materials and workmanship, and is covered by our exclusive 5-year Unconditional Warranty. Should this device fail to operate for any reason, we will repair it for five years from the date of manufacture. |
| Safety Approval | CSA, UL |
| Product Weight | 0.475 LBS |
| Product Height | 3.52 IN |
| Product Length | 2.44 IN |
| Product Width | 1.75 IN |
| HTS/Schedule B Number | 8542.90.0000 |
| ECCN Number | EAR99 |
| Country of Origin | United States |
| Shipping Height | 3.52 IN |
| UPC | 662917001640 |
| Shipping Length | 2.44 IN |
| Shipping Width | 1.75 IN |





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