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Protective device for track circuitry ST-200 type, ST-300 type



This is a protective device (arrester) that protects signal cables and equipment from irregular voltage that may enter track circuitry.

RoHS compliant

【Dimensions】 W100 × D20 × H65 (incl. holder)

Main performance characteristics
Item ST-200 ST-300
Use for track circuit (excl. AF track circuit) for AP track circuit (excl. equipment concentration type)
DC/ AC discharge sparkover voltage DC290V±50V DC490V±70V
Impulse protection level 10/200μs・3000V applied at 750V or less 10/200μs・3000V applied at 800V or less
Current withstand capacity AC:50A, 0.1s 20 times at 3 min. intervals
10/200μs, 400A, 300 times or more at 3 min. intervals