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V NH / VA NH<br />

V NH00 (FM) / V NH1<br />

Type 2 Surge Arresters<br />

54<br />

80<br />

47<br />

56<br />

135<br />

47<br />

62<br />

30<br />

59<br />

9<br />

30<br />

59<br />

9<br />

• Surge arrester for use in size 00 and 1<br />

NH fuse holders<br />

• Zinc oxide varistor with monitoring<br />

device, disconnector and integrated<br />

backup fuse (VA, NH with additional<br />

spark gap connected in series)<br />

• Fault indication by tripping indicator<br />

Basic circuit diagram V NH00 (FM), N NH1<br />

Dimension drawing<br />

V NH00 (FM)<br />

Dimension drawing<br />

V NH1<br />

V NH00 (FM): Surge arrester for use in size 00 NH fuse holders, optionally available with special<br />

indicator for remote signalling<br />

V NH1:<br />

Surge arrester for use in size 1 NH fuse holders<br />

900 261<br />

V NH00 280<br />

900 263<br />

V NH00 280 FM<br />

Surge Arresters Type 2<br />

Type V NH00 280 V NH00 280 FM<br />

Part No. 900 261 900 263<br />

SPD according to EN 61643-11 Type 2 Type 2<br />

SPD according to IEC 61643-1/-11 Class II Class II<br />

Max. continuous operating a.c. voltage (U C ) 280 V 280 V<br />

Nominal discharge current (8/20 μs) (I n ) 15 kA 15 kA<br />

Max. discharge current (8/20 μs) (I max ) 30 kA 30 kA<br />

Voltage protection level (U P ) ≤ 1.25 kV ≤ 1.25 kV<br />

Voltage protection level at 5 kA (U P ) ≤ 1 kV ≤ 1 kV<br />

Response time (t A ) ≤ 25 ns ≤ 25 ns<br />

Maximum mains-side overcurrent protection not required not required<br />

Short-circuit withstand capability 25 kA rms 25 kA rms<br />

Temporary overvoltage (TOV) (U T ) 335 V / 5 sec. 335 V / 5 sec.<br />

TOV characteristics withstand withstand<br />

Indication of the disconnector red indicator red indicator<br />

Indicator for remote signalling –– tripping distance of 7 mm<br />

Number of ports 1 1<br />

Operating temperature range (T U ) -40 °C...+80 °C -40 °C...+80 °C<br />

For mounting on size 00 NH fuse holders size 00 NH fuse holders<br />

Enclosure material thermoplastic, red, UL 94 V-0 thermoplastic, red, UL 94 V-0<br />

Place of installation indoor installation indoor installation<br />

Degree of protection IPX4W IPX4W<br />

V NH00 280<br />

900 261<br />

Überspannungsableiter Typ 2 / 1-polig<br />

280V AC für<br />

NH00-Sicherungssysteme<br />

V NH00 280 FM<br />

900 263<br />

Überspannungsableiter Typ 2 / 1-polig 280V AC für NH00-<br />

Sicherungssysteme<br />

Type V NH1 280<br />

Part No. 900 270<br />

SPD according to EN 61643-11 Type 2<br />

SPD according to IEC 61643-1/-11<br />

Class II<br />

Max. continuous operating a.c. voltage (U C )<br />

280 V<br />

Nominal discharge current (8/20 μs) (I n )<br />

15 kA<br />

Max. discharge current (8/20 μs) (I max )<br />

30 kA<br />

Voltage protection level (U P )<br />

≤ 1.25 kV<br />

Voltage protection level at 5 kA (U P )<br />

≤ 1 kV<br />

Response time (t A )<br />

≤ 25 ns<br />

Maximum mains-side overcurrent protection<br />

not required<br />

Short-circuit withstand capability<br />

25 kA rms<br />

Temporary overvoltage (TOV) (U T )<br />

335 V / 5 sec.<br />

TOV characteristics<br />

withstand<br />

Indication of the disconnector<br />

red indicator<br />

Number of ports 1<br />

Operating temperature range (T U ) -40 °C...+80 °C<br />

For mounting on<br />

size 1 NH fuse holders<br />

Enclosure material thermoplastic, red, UL 94 V-0<br />

Place of installation<br />

indoor installation<br />

Degree of protection<br />

IPX4W<br />

900 270<br />

V NH1 280<br />

V NH1 280<br />

900 270<br />

Überspannungsableiter Typ 2 / 1-polig<br />

NH1-Sicherungssysteme<br />

280V AC für<br />

116 www.dehn.de

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