Surge special neutralizing transformer

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Product Details

Specification Parameters

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The surge special neutralizing transformer is used for surge protection of DC communication lines in equipment room, wireless relay station, etc. The equipment side and the external cable are insulated and can be excluded

Abnormal voltage caused by induced lightning surge and rising geodetic potential.

Model identification

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Size and Mass

※ The dimensions in the table below are those without a cover.

※ Products with coil resistance below 20Ω are much larger than those in this table.

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Model number	Size（㎜）
Model number	A	B	H	Ho	C	D	E	shape
SN30-026	148	144	220	—	130	126	7	A
SN30-046	148	144	220	—	130	126	7	A
SN30-066	220	170	220	—	205	100	7	B
SN30-086	340	230	380	50	320	150	9
SN30-106	340	230	380	50	320	150	9
SN30-126	400	280	345	50	375	200	9
SN30-146	400	280	345	50	375	200	9
SN30-166	400	280	345	50	375	200	9
SN30-186	460	320	345	50	435	200	9
SN30-206	460	320	345	50	435	200	9

item	Measurement condition	Performance
Maximum operating voltage	Coil induced voltage application	1.2/50μs・30kV
Withstand voltage	Between coils	AC3kV・1min1.2/50μs・30kV
Withstand voltage	Between Coil and ground	AC3kV・1min1.2/50μs・30kV
Insulation resistance	Between coils	above 500MΩ
Insulation resistance	Between Coil and ground	above 500MΩ
Action attenuation	600Ω terminal	1.0dBbelow（When 16Hz 0.5dB below）
Current capacity	—	3A・1min、30A・1s
Dc resistance	Total of each coil	below 60Ω
Dc resistance	The deviation of each pair	within 5%
The amount of crosstalk attenuation	—	above 60dB
Frequency characteristic	—	DC～3.4kHz
Winding mode	—	Two rolls of wire