Data Surge Protector FRD4-12

The FRD4 protects two independent circuit pairs with selectable clamping voltages to match normal signal levels.

The plug-in design allows easy module replacement without rewiring, and connections stay active when the module is removed.

IEC/EN Category: D1/C1/C2/C3

Mode of Protection: Longitudinal, Transverse

Coarse Protection: 3 Terminal GDT

Voltage: 12Vdc

Frequency Range: 30MHz

Surge Discharge Ratings: I_n: 10kA, I_max: 20kA, I_imp: 5kA

Series Load Current: 1A

Enclosure: DIN 43880 2/3 TE, DIN Rail Mount

Terminals: Stranded to 4mm²

Housing: Modular Design

Compliance: IEC/EN 61643-21

Main Specification

Model No.	FRD4-12
	Line conductor terminals protected	2 (4 Conductors)
	Nominal operating voltage (DC) U_n	12V
	Maximum continuous operating voltage (DC) U_c	15V
	Rated load current at 25 ºC I_L	1A
	C2 Nominal discharge current (8/20 μs) I_n	10kA
	Maximum discharge current (8/20 μs) I_max	20kA
	Impulse discharge current (10/350 μs) I_imp	5kA