Three Phase Selector With Voltage Current Protection
3 input 1 output （cut off both L and N）

PRODUCT INTRODUCTION
This multi-phase power protector is designed to ensure stable and safe power supply for three-phase systems. It integrates over-voltage, under-voltage, and over-current protection functions, with flexible phase sequence switching and priority management.

FEATURES
Comprehensive voltage/current protection: Monitors phase voltages and currents, automatically cutting off faulty phases or entire lines when thresholds are exceeded, and resetting automatically when parameters return to safe ranges.
Customizable phase sequence: Supports multiple input phase priority options (ABC, ACB, BAC, BCA, CAB, CBA) and configurable switching/recovery times to maintain continuous power supply.
Adjustable protection parameters: Allows users to set protection thresholds, delay times, and continuous over-current limits, with calibration functions to correct voltage/current measurement errors.
Manual reset option: Triggers manual lockout after continuous over-current events to enhance system safety.

TECHNICAL DATA
1. Rated supply voltage: AC220V
2. Operation voltage range: AC140V-300V
3. Rated frequency: 50/60Hz
4. Hysteresis (Over voltage): 5V
5. Hysteresis (Under voltage): 5V
6. Voltage measurement accuracy: ≤1%(over the whole range)
7. Rated insulation voltage: 450V
8. Output contact: 1NO
9. Electrical life: 10⁵
10. Mechanical life: 10⁵
11. Protection degree: IP20
12. Pollution degree: 3
13. Altitude: ≤2000m
14. Operating temperature: -5℃–40℃
15. Humidity: ≤50% at 40℃(without condensation)
16. Storage temperature: -25℃–55℃

Noted: This device has a feature that allows for the disabling of the voice alarm. The equipment will make a sound when it is operated or has a malfunction.