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Scope of Application

TXSPD Surge Protection Device (ALU3, surge protective device) with B, C, D series large current modular. TXSPD is used for power supply systems of AC 50/60Hz, the TT, IT, TN-S, TN-C, TN-C-S of rated voltage 380V and below, ro protect the power grid caused by lightning or surge overvoltage. The design is based on the C61643-1,GB18802-2002, it can discharge the 100kA lightning current, case is installed on 35mm electric rail, the detachment device automatically will be out of its power grid, meanwhile the status indicator turns from green to red. TXSPD Surge Protection Device has protection modes of common mode (MC) and differential mode (MD).

TXSPD complies with the requirements of GB18802.1 and IEC61643-1 standard.

Main technical parameters

Model: TXU3-B30, TXU3-B40, TXU3-B60

Max continuous operating voltage Uc (V~): 320 or 385

Protection level Up (kV): ＜2.0, ＜2.5, ＜3.0

Nominal discharge current In (8/20μs) (kA): 30, 40, 60

Max discharge current Imax (8/20μs) (kA): 60, 80, 100

Response time t(ns): ＜25

Fuses or circuit breakers (A): 63

Working environment (℃): -40℃~+85℃

Relative humidity(%): ≤95% (25℃)

Access conductor cross-sectional area (mm²): ≥25, ≥35

Access ground cross-sectional area (mm²): ≥35