Best quality cheap price new patent power surge protector over and under voltage protector

1, input power: three-phase four-wire
 
2, the power supply voltage range: 110 ~ 300VAC phase voltage
 
3. Display: LED lights
4, Power consumption: ≤3VA
 
5, the electrical isolation strength:> 2000VAC, pulse 2.5KV 1.2 / 50μS
 
6, the working environment: temperature -25 ℃ --50 ℃ humidity <85% non-condensing
 
7, fault indication: LED lights
8, the sampling method: phase to neutral voltage AC sampling resistor divider
 
9, phase sequence fault phase protection: Optional
 
10, phase protection function: including break the zero line.
 
11, three-phase voltage unbalance protection: optional, can modify the range: 5-49%, OFF (choose when ordering),
 
12, over-voltage protection function: Yes; over-voltage action: 270V ± 5V Overvoltage recovery voltage: 240V ± 5V
 
13, under-voltage protection function: Yes; voltage action: 170V ± 5V voltage recovery voltage: 185V ± 5V
 
14, protection time: less than 0.1s
 
15, automatic power off after the break.
 
16, the operation cycles:> 4000

Phase four-wire phase sequence protection off zero protection multifunction resettable over-voltage protection is the latest development of intelligent multi-functional protection, is a versatile three-phase four-wire or three-phase four-wire power system electricity monitoring and subsidiary protection equipment, set the phase sequence protection, off zero protection, phase protection, phase voltage unbalance protection, over voltage protection, multifunctional resettable over-voltage protection, specific protection function the user can freely Select, with fully functional, stable performance, easy to operate features. To fill the existing three-phase power protection function of a single drawback is the market existing three-phase over-voltage protection from double replacement. This product has applied for patents and new practical technology patents two patents. 

Installation and conditions of use

1. temperature: -20 ℃ ~ 50 ℃
 
2. humidity: ≤85%
 
3. Altitude: not exceed 2000m
 
4. Pollution degree: 3
 
5. Installation: HT35-7.5-rail mounted vertically
 
6. grounding systems: TT, TN-S, TN-C-S earthing system

Detailed product photos: