153
The Model 153 Reverse Phase Relay offers critical protection for industrial electrical systems. This device precisely detects phase reversal on both Wye and Delta configurations, safeguarding connected machinery from operational anomalies. Operating within a nominal voltage range of 190-500 VAC, it ensures broad compatibility across various industrial setups. A rapid .05-second response time allows for immediate system correction upon detecting an issue, minimizing downtime and potential damage. Its robust SPDT 10A output contacts at 240VAC resistive provide reliable switching capabilities. Engineered for durability, the relay maintains performance across a wide operating temperature range of -20° to +131° F. With an automatic reset function and a mechanical life expectancy of 10 million operations, the Model 153 delivers consistent, long-term utility in demanding industrial applications.
The Model 153 Reverse Phase Relay is designed to continuously monitor
phase rotation of 3-phase lines. This device should be used in
applications where proper phase rotation is critical, such as fan
motors, compressors, grinders, elevators, etc. The solid-state sensing
circuit drives an internal electromechanical relay which energizes when
power, with correct phase rotation, is applied. The relay will not
energize if the applied phases are reversed. It will de-energize if
phase rotation is reversed while the motor is running. An LED indicator
will illuminate with correct ABC phase rotation.
Out of stock
Specifications
| Sensing Function | Senses phase reversal on Wye or Delta |
|---|---|
| Nominal voltage | 190-500 VAC (phase to phase) |
| Frequency | 50 to 60Hz |
| Power Consumption | 2W per phase |
| Transient protection | 2500 VRMS for 10ms |
| Repeat accuracy | ± 0.1% (fixed conditions) |
| Response time | .05 seconds |
| Reset time | .05 seconds |
| Reset type | Automatic |
| Dead band | Approximately 2% |
| Output contacts | SPDT 10A at 240VAC resistive |
| Expected relay life (Mechanical) | 10 million operations |
| Expected relay life (Electrical) | 100,000 at rated load |
| Operating temp | -20° to +131° F |
| Humidity tolerance | 0-97% w/o condensation |
| Case material | ABS plastic |
| Mounting | DIN Rail or Surface Mount |
| Indicator | LED will illuminate with correct ABC phase rotation |
| Warranty | 5-year Unconditional Warranty |
