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For protecting low-voltage consumer installations against surges. For installation in conformity with the lightning protection zone concept at the boundaries from 0_B – 1 and higher.

DEHNguard ME/SE DC ... (FM)

Universal combined arrester / surge arrester consisting of a base part and a plug-in protection module
Device concept specifically developed for use in d.c. circuits
Powerful d.c. switching device DCD prevents fire damage caused by d.c. switching arcs
Use without additional backup fuse in defined applications
Operating state / fault indication by green / red indicator flag in the inspection window
Easy replacement of protection modules without tools due to module locking system with module release button

DEHNguard protection module

Part No. 972054

DG MOD DC 1250 RS

item

DEHNguard protection module

Part No. 972060

DG MOD DC Y 500

New

item

DEHNguard protection module

Part No. 972061

DGP MOD DC Y 500

New

item

DEHNguard M DC ACI 1250 FM

Modular surge arrester for d.c. applications; with floating remote signalling contact.

Part No. 972150

DG M DC ACI 1250 FM

New

item

DEHNguard ME DC ... FM

Modular combined lightning current and surge arrester for d.c. applications; with floating remote signalling contact.

Part No. 972147

DG ME DC Y 1000 FM

New

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DEHNguard SE DC ...

Modular single-pole surge arrester for d.c. applications.

Part No. 972110

DG SE DC 60

Discontinued

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SPD classification as per EN 61643-11 / ... IEC 61643-11	type 2 / class II
Max. continuous operating voltage DC (U_C)	60 V
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Voltage protection level (U_P)	≤ 0.5 kV
Short-circuit withstand capability without backup fuse (d.c.) (I_SCCR)	300 A
Short-circuit withstand capability for max. mains-side overcurrent protection (d.c.) (I_SCCR)	25 kA
Max. mains-side overcurrent protection	35 A gG
Extended technical data

DEHNguard SE DC ...

Modular single-pole surge arrester for d.c. applications.

Part No. 972120

DG SE DC 242

Discontinued

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SPD classification as per EN 61643-11 / ... IEC 61643-11	type 2 / class II
Max. continuous operating voltage DC (U_C)	242 V
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Voltage protection level (U_P)	≤ 1.25 kV
Short-circuit withstand capability without backup fuse (d.c.) (I_SCCR)	300 A
Short-circuit withstand capability for max. mains-side overcurrent protection (d.c.) (I_SCCR)	25 kA
Max. mains-side overcurrent protection	35 A gG
Extended technical data

DEHNguard SE DC ...

Modular single-pole surge arrester for d.c. applications.

Part No. 972130

DG SE DC 550

Discontinued

item

SPD classification as per EN 61643-11 / ... IEC 61643-11	type 2 / class II
Max. continuous operating voltage DC (U_C)	550 V
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Voltage protection level (U_P)	≤ 2.0 kV
Short-circuit withstand capability without backup fuse (d.c.) (I_SCCR)	200 A
Short-circuit withstand capability for max. mains-side overcurrent protection (d.c.) (I_SCCR)	25 kA
Max. mains-side overcurrent protection	35 A gG
Extended technical data

DEHNguard SE DC ...

Modular single-pole surge arrester for d.c. applications.

Part No. 972140

DG SE DC 900

Discontinued

item

SPD classification as per EN 61643-11 / ... IEC 61643-11	type 2 / class II
Max. continuous operating voltage DC (U_C)	900 V
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Voltage protection level (U_P)	≤ 3.0 kV
Short-circuit withstand capability without backup fuse (d.c.) (I_SCCR)	100 A
Short-circuit withstand capability for max. mains-side overcurrent protection (d.c.) (I_SCCR)	25 kA
Max. mains-side overcurrent protection	80 A gPV
Extended technical data

DEHNguard SE DC ... FM

Modular single-pole surge arrester for d.c. applications; with floating remote signalling contact.

Part No. 972115

DG SE DC 60 FM

item

SPD classification as per EN 61643-11 / ... IEC 61643-11	type 2 / class II
Max. continuous operating voltage DC (U_C)	60 V
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Voltage protection level (U_P)	≤ 0.5 kV
Short-circuit withstand capability without backup fuse (d.c.) (I_SCCR)	300 A
Short-circuit withstand capability for max. mains-side overcurrent protection (d.c.) (I_SCCR)	25 kA
Max. mains-side overcurrent protection	35 A gG
Type of remote signalling contact	changeover contact
Extended technical data

DEHNguard SE DC ... FM

Modular single-pole surge arrester for d.c. applications; with floating remote signalling contact.

Part No. 972125

DG SE DC 242 FM

item

SPD classification as per EN 61643-11 / ... IEC 61643-11	type 2 / class II
Max. continuous operating voltage DC (U_C)	242 V
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Voltage protection level (U_P)	≤ 1.25 kV
Short-circuit withstand capability without backup fuse (d.c.) (I_SCCR)	300 A
Short-circuit withstand capability for max. mains-side overcurrent protection (d.c.) (I_SCCR)	25 kA
Max. mains-side overcurrent protection	35 A gG
Type of remote signalling contact	changeover contact
Extended technical data

DEHNguard SE DC ... FM

Modular single-pole surge arrester for d.c. applications; with floating remote signalling contact.

Part No. 972135

DG SE DC 550 FM

item

SPD classification as per EN 61643-11 / ... IEC 61643-11	type 2 / class II
Max. continuous operating voltage DC (U_C)	550 V
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Voltage protection level (U_P)	≤ 2.0 kV
Short-circuit withstand capability without backup fuse (d.c.) (I_SCCR)	200 A
Short-circuit withstand capability for max. mains-side overcurrent protection (d.c.) (I_SCCR)	25 kA
Max. mains-side overcurrent protection	35 A gG
Type of remote signalling contact	changeover contact
Extended technical data

DEHNguard SE DC ... FM

Modular single-pole surge arrester for d.c. applications; with floating remote signalling contact.

Part No. 972145

DG SE DC 900 FM

item

SPD classification as per EN 61643-11 / ... IEC 61643-11	type 2 / class II
Max. continuous operating voltage DC (U_C)	900 V
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Voltage protection level (U_P)	≤ 3.0 kV
Short-circuit withstand capability without backup fuse (d.c.) (I_SCCR)	100 A
Short-circuit withstand capability for max. mains-side overcurrent protection (d.c.) (I_SCCR)	25 kA
Max. mains-side overcurrent protection	80 A gPV
Type of remote signalling contact	changeover contact
Extended technical data

SPD classification similar to EN 61643-41 / ... IEC 61643-41	Type 2
Nominal discharge current (8/20 µs) (I_n)	10 kA
Max. nominal impulse discharge current (8/20 µs) (I_max)	20 kA
Max. short circuit withstand capability (I_SCCR)	5 kA
Type of remote signalling contact	changeover contact
Extended technical data

Lightning impulse current (10/350 µs) (I_imp)	5 kA
Nominal discharge current (8/20 µs) (I_n)	12.5 kA
Max. nominal impulse discharge current (8/20 µs) (I_max)	20 kA
Voltage protection level [DC+ -- DC-] (U_P)	< 3,75 kV
Voltage protection level [(DC+/DC-) -- PE] (U_P)	< 2,5 kV
Max. short circuit withstand capability (I_SCCR)	5 kA
Type of remote signalling contact	changeover contact
Extended technical data