SPD A1 , D1 , D2

This type of protection device can protect the communication lines and equipment on railway equipment from abnormal voltage shocks caused by lightning surges. LSA-PLUS terminals are used for cable connection, which has excellent construction performance and enables high-density installation. The protection device can be installed or removed in 1 line unit.

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Product Details

Specification Parameters

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This type of protection device can protect the communication lines and equipment on railway equipment from abnormal voltage caused by lightning surges. LSA-PLUS terminals are used for cable connection, which has excellent construction performance and enables high-density installation. The protection device can be installed or removed in 1 line unit.

Features

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Item	Performance
	A1 type	D1 type	D2 type
Main use	Analog line Crossbar switch and telephone equipment protection	Digital line Protection of electronic switches and terminal equipment	Digital line Protection of PCM devices
Frequency band	DC～200 KHz	DC～400 KHz	DC～2 MHz
Action attenuation	1.0 dB below
The amount of crosstalk attenuation	70 dB above
Dc resistance	6.5Ω±20%	15Ω±20%	6Ω±20%
Dc discharge starting voltage	350V±70V
Impact protection level 10/200μs 3kV applied	800V below
Impulse cycle current tolerance	10/200μs・200A・100 times
AC Life span	AC10A 0.1s 10 times
Insulation resistance	When DC100V 100MΩ above
Size（mm）	W9.4×D24×H51	W9.4×D26×H77
Mass（g）	20