To the Kawaguchi electric works Ltd. in case of the thunder harm product (security machine, arrester, and SPD)

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Test Springs


Test Springs

"ISO9001 and NQAS approved"

This test spring is used on the V-side for termination of an automatic MDF in the exchange office. The 60A/B-ARR protector is used on the exchange office side (H-side).


  1. One No.128 test spring can house 64 circuits.
  2. A connector type connection cable is adopted for connection of a switchboard and an automatic MDF for simple connection work.
  3. The U-slit (option) for No.128 test spring will facilitate switching work.
No.128 Test Spring

Structure and system configuration

  • One No.128 test spring is composed of 64 circuits, and one optional U-slit terminal can be used for 8 circuits.
Structure and system configuration