48049-137-06EN

Adjustable Rating Plug Replacement

NOTE: To select correct replacement rating plug, see the product catalog.
NOTE: Adjustable rating plug must be removed when doing hi-pot testing. Adjustable rating plug must be installed for voltage measurement. If adjustable rating plug is removed, the circuit breaker will default to a long-time pickup rating of 0.4 x sensor size (In) and a long-time delay of whatever setting was selected before the rating plug was removed.
DANGER
hazard of electric shock, explosion, or arc flash
  • Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E, CSA Z462, NOM 029-STPS or local equivalent.
  • This equipment must be installed and serviced only by qualified electrical personnel.
  • Turn off all power supplying this equipment before working on or inside equipment. Follow instructions shipped with circuit breaker to disconnect and reconnect circuit breaker.
  • Replace all devices, doors and covers before returning equipment to service.
Failure to follow these instructions will result in death or serious injury.

Remove Rating Plug

  1. Disconnect circuit breaker as directed in the circuit breaker instruction bulletin shipped with the circuit breaker.

  2. Open switch cover (A).

  3. Record switch settings in Appendix E (switch settings and those set with graphic screen, if applicable).

  4. Unscrew plug mounting screw (B).

  5. Remove adjustable rating plug (C).

Remove Adjustable Rating Plug

Install New Rating Plug

  1. Inspect mounting area for debris and contamination.

  2. Gently push in new rating plug (A).

  3. Tighten adjustable rating plug mounting screw (B).

  4. Set trip unit settings to values recorded in Appendix E or per coordination study results.

  5. Close switch cover (C).

Install New Adjustable Rating Plug

QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

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