Core Functions: Comprehensive three-phase monitoring—including phase sequence, phase loss, over-voltage, under-voltage, and three-phase voltage imbalance—with adjustable time-delay functionality.
Terminal Definitions
L1/L2/L3: Three-phase 380V input;
A1/A2: Auxiliary power supply;
16/18: Fault alarm contacts.
Practical Applications
1. Includes all phase sequence and phase loss protection features found in the RM22TG20;
2. Provides time-delayed shutdown protection in cases of high grid voltage (over-voltage), low grid voltage (under-voltage), or excessive voltage difference between phases;
3. Suitable for precision equipment—such as elevators, injection molding machines, central air conditioning systems, and large air compressors—where high voltage stability is required.
Applications:
Primary Applications
Motor protection and control systems
HVAC system management and automation
Industrial automation and machine control
Pump and compressor operation
Lighting control circuits
Power distribution and switchgear networks
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Applications:
Motor Control Systems
Three-phase motor start/stop operations
Motor reversing circuits
Pump and compressor motor management
Conveyor and industrial machine tool control
HVAC Systems
Air conditioner compressor switching
Heating system power regulation
Ventilation fan control
Chiller system and air handling unit management
Industrial Automation
Production line power distribution
Machine automation integration
Process control system coordination
Robotic and assembly line power management
Power Distribution Networks
Commercial and industrial lighting control
Transformer load regulation
Capacitor bank management and power factor correction
Switchgear and panel operations
Special Applications
Crane and hoist control systems
Elevator and escalator power management
Welding equipment operation
Data center power distribution
Renewable energy system integration
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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.
Zhejiang Mingtuo Electrical Technology Co., Ltd. welcomed a group of clients from the Democratic Republic of Congo (DRC) in Africa for
This week, Mingtuo Electric announces a significant expansion of its motor protection portfolio with the official launch of three integrated
Zhejiang Mingtuo Electrical Technology Co., Ltd. has successfully completed the shipment of MCCB and MCB circuit breakers to the Democratic Republic
Our goal is to help people in the best way possible. this is a basic principle in every case and cause for success. contact us today for a free consultation.Â
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