Siemens Industrial Controls 3UG5514-1BR20 Monitoring Relay 322838-753 While a 2-pole contactor breaks

While a 2-pole contactor breaks both legs of power

As the direct factory replacement for 61-21922-51

Broad Compatibility: Replaces a wide range of Honeywell VS8148 and Allpoints millivolt valves used in vintage and modern gas-fired appliances

the V47AD-19 provides a secure

8-second flame failure response time and multi-color LED diagnostic codes

Siemens Industrial Controls 3UG5514-1BR20 Monitoring Relay 322838-753 While a 2-pole contactor breaksThe Siemens 3UG5514 1BR20 is a high performance digital monitoring relay designed for demanding industrial phase monitoring and line protection applications. This SIRIUS monitoring relay provides precise detection of phase sequence, phase failure, and phase asymmetry within 3 phase networks. Engineered for reliability, it ensures motor protection by monitoring overvoltage and undervoltage conditions, preventing equipment damage due to unstable power