Wholesale RM22UB34 Single-Phase Voltage Monitoring Relay

Wholesale RM22UB34 Single-Phase Voltage Monitoring Relay

RM22UB34 Single-Phase Voltage Monitoring Relay - Image 1
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RM22UB34 Single-Phase Voltage Monitoring Relay - Image 4
RM22UB34 Single-Phase Voltage Monitoring Relay - Image 5
RM22UB34 Single-Phase Voltage Monitoring Relay - Image 6
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RM22UB34 Single-Phase Voltage Monitoring Relay
RM22UB34 Single-Phase Voltage Monitoring Relay - Image 2
RM22UB34 Single-Phase Voltage Monitoring Relay - Image 3
RM22UB34 Single-Phase Voltage Monitoring Relay - Image 4
RM22UB34 Single-Phase Voltage Monitoring Relay - Image 5
RM22UB34 Single-Phase Voltage Monitoring Relay - Image 6

RM22UB34 Single-Phase Voltage Monitoring Relay

Core Functions: Monitors the voltage of a single-phase 220V circuit; detects over-voltage, under-voltage, and power loss conditions; and independently monitors the power supply to a single-phase load.


Terminal Definitions
A1/A2: Connection points for the single-phase power supply to be monitored;
L1/L2: Power supply circuit;
Output contacts: Linked to alarm or shutdown functions.

Practical Applications
1. Monitors 220V equipment such as heating elements, single-phase variable frequency drives (VFDs), lighting systems, and small oil pumps;
2. Disconnects the load when grid voltage is excessively low or high, preventing damage to controllers and heating elements;
3. Can be used for delayed equipment startup upon power-up and for power-loss alarms.

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    Zhejiang Mingtuo Electrical Technology Co., Ltd.

    Zhejiang Mingtuo Electrical Technology Co., Ltd. is a technology-driven enterprise specializing in the research, development, and manufacturing of low-voltage and medium-voltage circuit breakers. Low Voltage Air Circuit Breaker Suppliers. Leveraging Liushi’s comprehensive electrical industry chain and local advantages, we provide reliable and safe electrical protection products along with customized solutions for global industrial, commercial, and residential power distribution systems. We are committed to becoming a trusted electrical protection partner for global customers through professional engineering capabilities, consistent manufacturing quality, and flexible customization services.

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