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1-Pole 48 Vdc surge protector

DS72RS-48DC

Part Number 492121

DS72RS-48 DC surge protectors are designed to protect equipment connected to DC (and AC) power supplies from lightning surges.

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Electrical Properties Mechanical Properties Norms Deconnector Schematics

SPD type	IEC	1+2
Network		48 Vdc
Nominal line voltage	Un	48 Vdc
Nominal DC voltage	Un-dc	48 Vdc
Max. DC operating voltage	Uc	65 Vdc
Operating current Continious current at Uc	Ic	< 0.1 mA
Follow current	If	None
Nominal discharge current 15 x 8/20 µs impulses	In	30 kA
Max. discharge current max. withstand @ 8/20 µs by pole	Imax	70 kA
Total Maximum discharge current max. total withstand @ 8/20 µs	Imax Total	140 kA
Impulse current by pole max. withstand 10/350µs by pole	Iimp	7 kA
Total lightning current max. total withstand @ 10/350µs	Itotal	14 kA
Connection mode(s)		+/PE and -/PE
Protection mode(s)		Differential/Common mode
Protection level +/PE (-/PE) @ In (8/20µs)	Up	300 V

Technology		MOV
SPD configuration		2-poles
Connection to Network		By screw terminals: 4-25mm²
Format		Plug-in modular box
Mounting		Symmetrical rail 35 mm (EN 60715)
Housing material		Thermoplastic UL94 V-0
Operating temperature	Tu	-40/+85°C
Protection rating		IP20
Outdoor application		No
Failsafe mode		Disconnection from DC network
Disconnection indicator		1 mechanical indicator by pole
Spare module(s)		DSM70R-48DC
Remote signaling of disconnection		Output on changeover contact
Dimensions		See diagram

Standards compliance

IEC 61643-11 / EN 61643-11 / UL1449 ed.5

Thermal disconnector		Internal
Back-up protection device		100 A min. - 125 A max. - Fuses type gG