What is the Self-compound overvoltage and undervoltage protector?

Applicable scope of editing broadcast

Self-compound overvoltage and undervoltage protector is suitable for single-phase AC voltage 220V, frequency 50Hz, rated working current 60A and below the user or load. As the protection of single-phase electrical equipment due to overvoltage and undervoltage caused by neutral line fault. It is mainly used for the protection of the distribution line of the residential household box or the single-phase electrical equipment.

Design principle editor broadcast

Low-power high-speed control circuit adopts micro processor as the core, magnetic stick relay circuit, modular design standard, when power lines appear overvoltage, undervoltage, the protector can rapidly and safely under continuous pressure to cut off the circuit, to prevent abnormal voltage into the terminal apparatus caused accidents, restore normal value when the voltage, The protector will automatically switch on the circuit within the specified time to ensure the normal operation of the terminal appliances in the case of unattended.

Feature editing and broadcasting

1 The single-phase line is cut off when overvoltage or undervoltage occurs, and the voltage of the single-phase line is restored to normal after a delay, and the line is automatically reset and connected without manual operation.

2 line transient or transient overvoltage, the protector does not produce false action.

3 line due to the contact is not real fault voltage instability, or sudden power and sudden call, the protector is not connected to the line.

4 line fault voltage is the highest, the protector itself will not be damaged.

5 The protector has the reverse time action characteristic, and the action time is less than 1s.

6 Voltage protection range: 0 ~ 450V below 40A, 50/60A: 0 ~ 600V.

7 Withstand impulse voltage: 4kV (in line with the safety standards of class ⅲ electrical appliances).
The protector has a two-color LIGHT-EMITTING diode to indicate the working state, green - normal voltage indication, red - over voltage or delay indication.

9. Shape modular design, guide rail installation.

10 Wiring capacity: 25 square mm and below insulated wire

Classified edit broadcast

Self-compound overvoltage and undervoltage protector according to the control circuit can be divided into: single-phase self-compound overvoltage and undervoltage protector, three-phase four-wire self-compound overvoltage and undervoltage protector two kinds;

According to the input mode, it can be divided into: 1. Lower input, upper output; 2. 2. Input at the upper end and output at the lower end;

According to the product width can be divided into: 45mm wide, 36mm (single-phase), three-phase 72mm, 108mm.

Edit and broadcast the main technical parameters

1, working voltage: AC220V, frequency 50Hz

2, product specifications: 20A, 32A, 40A, 50A, 60A (resistance)

3, load power: 4.4kVA, 6.6KVA, 8.8kVA, 11KVA, 13.2kVA

4, over pressure action cut off value: AC270±5V

5, overpressure recovery value: AC255±5V

6, under pressure action cut off value: AC170±5V

7, undervoltage recovery value: AC185±5V

8, after power supply delay: 30±10 seconds

9, action delay time: ≤1 second

10, its own power consumption: ≤2W

11, electrical and mechanical life: ≥ 100,000 times

12. Overall dimension: 85.5×45×66mm(length × width × height).

Notes to the editor broadcast

1. The national technical standard of the protector is being drafted by the standard committee, and the start time after power is not strictly stipulated.

2, the protector N line is the zero line, L is the live line, can not be connected wrong.

3, before use, please tighten the clamping screw, to prevent bad contact and damage to the product