DSH TT 255 FM, DSH TT 255 FM 941 315, 941 315, 941315, nhập khẩu chống sét nguồn điện 3 pha, DEHNshield TT FM, DEHN + SÖHNE

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DSH TT 255 FM, DSH TT 255 FM 941 315, 941 315, 941315, nhập khẩu chống sét nguồn điện 3 pha, DEHNshield TT FM, DEHN + SÖHNE

Download tài liệu DSH TT 255 FM

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Application-optimised and prewired spark-gap-based type 1 and type 2 combined lightning current and surge arrester
Compact design due to space-saving spark gap technology with a width of only 1 module / pole
Fulfils the minimum requirements on the lightning current discharge capacity according to IEC 60364-5-53
Allows compact lightning equipotential bonding including protection of terminal equipment
Discharge capacity up to 50 kA (10/350 µs)
Operating state / fault indication by green / red indicator flag in the inspection window
High follow current extinguishing capacity (Ifi = 25 kArms)

Application-optimised and prewired combined lightning current and surge arrester for TT and TN-S systems with a nominal voltage of 230 / 400 V (3+1 configuration); with floating signalling contact.

DEHNshield TT 255 FM combined arrester Four-pole combined arrester for 230/400 V TT und TN (C)-S systems, width: 4 mod. With remote signalling contact Type 1 + type 2 SPD according to EN 61643-11 Application-optimised use in compact electrical installations Spark gap technology with follow current limitation Fault indication Max. continuous operating voltage: 255 V a.c. Voltage protection level: <= 1.5 kV Lightning impulse current (10/350): 50 kA Energy-coordinated according to IEC 62305-4 with arresters of the Red/Line series and terminal equipment

delivery and installation.

Brand: DEHN + SÖHNE

Type: DSH TT 255 FM

Part No.: 941 315

or equivalent.

Type	DSH TT 255 FM
Part No.	941 315
SPD according to EN 61643-11 / IEC 61643-11	type 1 + type 2 / class I + class II
Energy coordination with terminal equipment (≤ 5 m)	type 1 + type 2 + type 3
Nominal voltage (a.c.) (U_N)	230 / 400 V (50 / 60 Hz)
Max. continuous operating voltage (a.c.) (U_C)	255 V (50 / 60 Hz)
Lightning impulse current (10/350 µs) [L1+L2+L3+N-PE] (I_total)	50 kA
Specific energy [L1+L2+L3+N-PE] (W/R)	625.00 kJ/ohms
Lightning impulse current (10/350 µs) [L-N]/[N-PE] (I_imp)	12.5 / 50 kA
Specific energy [L-N]/[N-PE] (W/R)	39.06 / 625.00 kJ/ohms
Nominal discharge current (8/20 µs) [L-N]/[N-PE] (I_n)	12.5 / 50 kA
Voltage protection level [L-N]/[N-PE] (U_P)	≤ 1.5 / ≤ 1.5 kV
Follow current extinguishing capability [L-N]/[N-PE] (I_fi)	25 kA_rms / 100 A_rms
Follow current limitation / Selectivity	no tripping of a 32 A gG fuse up to 25 kA_rms (prosp.)
Response time (t_A)	≤ 100 ns
Max. mains-side overcurrent protection	160 A gG
Temporary overvoltage (TOV) [L-N] (U_T) – Characteristic	440 V / 120 min. – withstand
Temporary overvoltage (TOV) [N-PE] (U_T) – Characteristic	1200 V / 200 ms – withstand
Operating temperature range (T_U)	-40 °C ... +80 °C
Operating state / fault indication	green / red
Number of ports	1
Cross-sectional area (L1, L2, L3, N, PE, 9) (min.)	1.5 mm² solid / flexible
Cross-sectional area (L1, L2, L3, N, PE, 9) (max.)	35 mm² stranded / 25 mm² flexible
For mounting on	35 mm DIN rails acc. to EN 60715
Enclosure material	thermoplastic, red, UL 94 V-0
Place of installation	indoor installation
Degree of protection	IP 20
Capacity	4 module(s), DIN 43880
Approvals	KEMA, VDE
Type of remote signalling contact	changeover contact
Switching capacity (a.c.)	250 V / 0.5 A
Switching capacity (d.c.)	250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A
Cross-sectional area for remote signalling terminals	max. 1.5 mm²solid / flexible
Extended technical data:	---------------------------------
Voltage protection level [L-PE] (U_P)	2.0 kV
Weight	448 g
GTIN	4013364275324
PU	1 pc(s)
Part No.	941 315

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DSH TT 255 FM, DSH TT 255 FM 941 315, 941 315, 941315, nhập khẩu chống sét nguồn điện 3 pha, DEHNshield TT FM, DEHN + SÖHNE

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