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TNR-X50

Application scope

Surge protector TNR-X series suitable for low voltage distribution cabinet, main box (cabinet JP), the T1 class provides protection for various electrical and electronic equipment vulnerable to lightning overvoltage of the buildings, for the main distribution system, installed in the main power system of power cabinet intact, as the first grade protection.

The national standard GB5007-2010 4.2 4.8 stipulates that the surge protector of the I type test should be installed in the general distribution box of the power supply. The voltage protection level of surge protector should be less than or equal to 2.5kA. When the impulse current value of each protection mode is not determined, the 10/350us impulse current should be equal to or greater than 12.5kA.

Installation matters

This product is installed in parallel before the protected equipment, the front end installation of SSD special backup protector (tripping device) plays a double protection. This product is installed around the track as combustible materials should keep the 10cm distance and the.

Product features

1. The high effective pressure sensitive resistance nanocrystalline graphite material has fast response time.

2. It is suitable for the T1 protection of the main distribution cabinet and JP cabinet in the low voltage distribution system.

3. with remote signal alarm contact, remote monitoring protector installed state;

4. the impact flow rate is large and the residual pressure is low.

5. the standard 35mm rail installation;

6. The installation is convenient and the maintenance is simple.

technical data

Electrical parameters	technical data
Maximum continuous operating voltage UC（V~）	275/385/440
Nominal discharge current In（kA)	25
Maximum impact current（10/350us）limp(kA)	50
Protection level Up（kA）	＜1.8/2.0/2.5
response time（ns）	＜100
Protection type	Switch type
General parameters
Outer size（Width * height * depth)	144/90/68
Intercepting area of access wire（mm2）	16~35（Multi strand copper cored line）
Access ground intercepting area（mm2）	≥16
SPD special backup protector (disconnector) limp（kA）	50
work environment	-40~+70℃，relative humidity＜（25℃以下）