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Electronic load current limiter
1、 Product Overview: Intelligent electronic load limiting automatic controller, also known as power limiting automatic controller, current limiting au
Product details
1、 Product Overview
Intelligent electronic load limiting automatic controller, also known as power limiting automatic controller, current limiting automatic controller, fully automatic current limiting controller. Suitable for AC 50Hz, working voltage 220V, current 0.5-20A, power 110W-4.4kW. It can be used for automatic power control in hotels, student dormitories, factory dormitories, civil buildings on construction sites, and designated power consumption areas. The main purpose is to restrict the illegal use of resistive load power electric heating equipment, such as electric furnaces and fast heating devices, without affecting the use of computers, electric fans, ordinary instruments, televisions, incandescent lamps, electronic fluorescent lamps, etc. (the total power should not exceed the nominal power). Thus, it plays a role in limiting the cost of electricity, especially in limiting the occurrence of fires caused by overcurrent heating in power lines, which helps to eliminate safety hazards.
1、 Model meaning
2、 Technical parameters
Working voltage: AC 220V
Protection action current: 0.5A, 1A, 2A, 3A, 5A, 6A, 10A, 15A, 20A (can be customized according to customers)
Working frequency: 50Hz
Rated current/power: 0.5A/110W, 1A/220V, 2A/440W, 3A/660W, 5A/1100W
6A/1320W, 10A/2200W, 15A/3300W, 20A/4400W
Automatic reset time: 30s ± 5s
Protection action current error: ± 10%
Self power consumption: ≤ 1W
Electrical and mechanical lifespan: ≥ 100000 cycles
Electric lifespan: ≥ 100000 cycles
Dimensions (length x width x height): 85.5 x 36 x 66mm
Installation method: 35mm guide rail installation
Wiring method: N is the neutral wire, L1 is the phase wire, load output terminal: N is the neutral wire, L2 is the phase wire.
3、 Handling methods and precautions
If the actual load current exceeds the rated current and the time is within 10-50 seconds, the power limiting controller will automatically disconnect the load power supply, and the overload protection indicator red light will automatically light up.
▲ Overload handling: First, handle the overloaded load power supply (unplug the illegally used electrical appliances). When the rated current of the power limiting automatic controller is reached, the controller will automatically detect that the load power is lower than the nominal load power. Within 10-50 seconds, the green time indicator light will automatically light up, which can automatically restore normal operation and power supply. Otherwise, the controller will automatically trip continuously and cannot be used normally.
Due to the lack of short-circuit and leakage protection functions in the controller, the input terminal must be connected to a product with short-circuit and leakage protection functions
▲ Due to the automatic recovery function of the controller, when the controller acts to protect and activate, the load (electrical appliance) should be immediately removed and the circuit checked. Otherwise, the controller will automatically trip continuously, and eventually burn out the controller or electrical wiring due to long-term and frequent overload connection and disconnection, causing it to be unable to function normally.
Connection
Single phase power supply (before RCD) TN, JT (with N wires) Single phase power supply TN-S, TN-C-S (after RCD) Three phase power supply TN-C, IT (with N wires) System 1+1 (N-PE) Module connection method: TT, IT (with N wires) System 2 Module wiring method: 3 Module wiring method:
Three phase power supply (before RCD) TT, IT (with N wires) system 3+1
(N-PE) module wiring method:
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