ZGZD40-18-48YM DC Power Supply SPD

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The ZGZD40-18-48YM DC Power Supply SPD is a kind of level C outdoor DC surge protector. It is applied to the low-voltage DC power distribution system, and is connected between DC power supply and system equipment. It can prevent the surge pulses or transient overvoltage caused by the outside environment (such as lightning strokes, EMI, etc.) or by the system (such as switching effects of the system, startup or shutoff of the inductance and capacitance load, etc.) from damaging the equipment.

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ZGZD40-18-48YM DC Power Supply SPD

ZGZD40-18-48YM DC Power Supply SPD

General
The ZGZD40-18-48YM DC Power Supply SPD is a kind of level C outdoor DC surge protector. It is applied to the low-voltage DC power distribution system, and is connected between DC power supply and system equipment. It can prevent the surge pulses or transient overvoltage caused by the outside environment (such as lightning strokes, EMI, etc.) or by the system (such as switching effects of the system, startup or shutoff of the inductance and capacitance load, etc.) from damaging the equipment.

Standards Complied
IEC 61643-1:2005      Surge protective devices connected to low-voltage distribution systems - Part 1: Technical requirements and testing methods
EN 61643-11/A11:2007 Low-voltage surge protective devices - Part 11: Surge protective devices connected to low-voltage power distribution systems
UL 1449 ed3            UL 1449 Third Edition
YD/T 1235.1-2002     Technical requirements for surge protective devices connected to low-voltage distribution systems of telecommunication stations / sites

Technical Parameters

Model	ZGZD40-18-48YM
Nominal operating voltage (U_n)	DC -48V
Maximum continuous operating voltage (U_c)	DC -75V
Nominal discharge current I_n(8/20μs)	20kA
Maximum discharge current I_max(8/20μs)	40kA
Protection level (U_p) (I_n)	≤180V
Rated load current (I_L)	18A
Load side impact capacity (8/20μs)	8kA
Enclosure	Die-casting aluminum spray paint
Degree of protection	IP55
Connection mode	In series
Protection mode	Common mode, differential mode