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.
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.
This week, Mingtuo Electric was honored to welcome a key client and partner from Bangladesh for a focused visit to our headquarters.
Zhejiang Mingtuo Electrical Technology Co., Ltd. has successfully completed the shipment of MCCB and MCB circuit breakers to the Democratic Republic
Zhejiang Mingtuo Electrical Technology Co., Ltd. welcomed a group of clients from the Democratic Republic of Congo (DRC) in Africa for
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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