DEHNbloc Maxi S

Spark-gap-based lightning current arrester with integrated lightning current carrying backup fuse in a compact enclosure
Directly mounted on the PEN / N busbar
Low voltage protection level U_P ≤2.5 kV (including 80 cm connecting cable)
Directly coordinated with DEHNguard surge protective device without additional cable length
Short-circuit withstand capability of 100 kA_rms(220 kA_peak)
High follow current extinguishing capability and limitation due to RADAX Flow technology
High lightning current discharge capacity
With optical-fibre interface for SPD monitoring

Detalles

lorem ipsum — 3-0 application in a TN-C system

DEHNbloc Maxi 1 255 S

Coordinated single-pole lightning current arrester with integrated backup fuse for busbar installation in 230 / 400 V systems.

1 Producto

N.º art. 900220 DBM 1 255 S

GTIN 4013364106734, N.º de arancel aduanero (EU): 85363090, Peso bruto: 730.70 g, Empaquetado: 1.00 pc(s)

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Coordinated DEHNbloc Maxi 1 255S lightning current arrester
Coordinated single-pole lightning current arrester
with integrated backup fuse for industrial busbar systems
Type 1 SPD according to EN 61643-11
RADAX Flow spark gap technology for follow current
limitation
Max. continuous operating voltage: 255 V a.c.
Voltage protection level: <= 2.5 kV
(including 80 cm connecting cable)
Lightning impulse current (10/350): 25 kA
Follow current extinguishing capability: 50 kArms
Rated breaking capacity of the integrated backup protection:
up to 100 kArms
Energy-coordinated with arresters of the Red/Line series
according to IEC 62305-4
Installation on PEN / N busbars min. 25 mm2
Dimensions (W x H x D): (72 x 89 x 100) mm
Degree of protection: IP 5X

Brand: DEHN
Type: DBM 1 255 S
Part No.: 900220
or equivalent.

Certificados

Datos técnicos

SPD according to EN 61643-11 / IEC 61643-11	type 1 / class I
Max. continuous operating voltage (a.c.) (U_C )	255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) (I_imp )	25 kA
Voltage protection level (U_P )	≤ 2.5 kV (including 80 cm connecting cable)
Max. mains-side overcurrent protection	not required
Operating state indication	by optical fibre cables via DSI E 3

SPD according to EN 61643-11 / IEC 61643-11	type 1 / class I
Nominal voltage (a.c.) (U_N )	230 V (50 / 60 Hz)
Max. continuous operating voltage (a.c.) (U_C )	255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) (I_imp )	25 kA
Specific energy (W/R)	156.25 kJ/ohms
Voltage protection level (U_P )	≤ 2.5 kV (including 80 cm connecting cable)
Follow current extinguishing capability (a.c.) (I_fi )	50 kA_rms
Follow current limitation / Selectivity	no tripping of a 32 A gG fuse up to 50 kA_rms(prosp.)
Response time (t_A )	≤ 100 ns
Short-circuit withstand capability (I_SCCR )	100 kA_rms(220 kA_peak)
Max. mains-side overcurrent protection	not required
Rated breaking capacity of the internal backup protection	100 kA
Temporary overvoltage (TOV) (U_T) – Characteristic	440 V / 120 min. – withstand
Operating temperature range (T_U )	-40 °C ... +80 °C
Number of ports	1
For mounting on	PEN / N busbars min. 35 mm²
Connection	cable lug min. 35 mm² / max. 50 mm²
Enclosure material	thermoplastic, red, UL 94 V-0
Place of installation	indoor installation
Dimensions (W x H x D)	72 x 89 x 100 mm
Operating state indication	by optical fibre cables via DSI E 3
Extended technical data:	Use in switchgear installations with prospective short-circuit currents of more than 50 kA_rms (tested by the German VDE)
– Max. prospective short-circuit current	100 kA_rms (220 kA_peak)
– Limitation / Extinction of mains follow currents	up to 100 kA_rms (220 kA_peak)

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DEHNbloc Maxi S

Detalles

DEHNbloc Maxi 1 255 S

N.º art. 900220 DBM 1 255 S

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DEHNbloc Maxi S

Detalles

DEHNbloc Maxi 1 255 S

N.º art. 900220 DBM 1 255 S

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