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AC SPD Class I

AC SPD Class I

Power Surge Protection T1 100kA 200kA AC 275V for 3 phases TN-S/ TT 3+1 Circuit System SPD Lightning Protectors

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Product Description
For installation at LPZ 0A-1 or higher, protecting low voltage equipment from surge damage. Applied in modular SPD Class I (Class B) for single-phase TT/TN-S power supply system. Designed according to IEC 61643-11; GB/T18802.11.

*  Combined lightning current arrester for three-phase TT ( “3+1” circuit) system
*  High discharge capacity, quick response
*  Double thermal dis-connector devices, providing more reliable protection
*  Multi-functional connection for conductors and busbar.
*  Double terminal for parallel or series (V-shape) connection.
*  Windows will change to red when fault and also provide remote alarm control at the same time.
BT BM200 275 RM/3+N

Single protection module
L-N Module ( *3 ) 
BT BM200 275 RM
N-PE Module ( *1 )
BT BNM 255

Nominal voltage [UN]
230V /400V AC

Rated voltage (max. continuous voltage) [Uc]
275V AC
255V AC

Nominal discharge current (8/20) [In]

Max. discharge current (8/20) [Imax]

Lightning impulse current (10/350) [Iimp]

Voltage protection level at In [Up]
≤ 2.5kV
≤ 2.5kV

Response time [tA]
≤ 25ns
≤ 100ns

TOV voltage

Max. back up fuse [L]
200A gL/gG

Max. back up fuse [L-L’]
125A gL/gG

Operating temperature range [Tu]

Cross-sectional area
35mm2 solid /50mm2 flexible

Mounting on
35mm DIN rail

Enclosure material
Light grey thermoplastic, UL94-V0

8 mods (144mm)

Test standards
IEC 61643-11; EN 61643-11; GB/T18802.11


Type of remote signalling contact
Switching contact

Switching capacity
AC:250V/0.5A; DC:250V/0.1A;150V/0.2A;750V/0.5A

Cross-sectional area for remote signalling contact
Max. 1.5mm2 solid / flexible

Ordering information

BT BM200 275 RM/3+N

806 153

Packing unit

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