31
Instruction Booklet IB 52-01-TE
Effective October 2010
Instructions for the Eaton Type CM52
Network Protectors 800 to 4500 Amperes
EATON CORPORATION www.eaton.com
31 IB -52-01-TE
Effective 11/05/08 (super cedes 11/19/03) IB 52-01-TE
• Check the input sequence light on the test set before you switch the
test set on, this indicates that you have the correct phasing. If the
light is ON, Do Not turn the test set on. Swap the outside power
phases, and re-check light. If the light is still on, check for a blown
test set phase and then re-ch eck. Place the outside handle in the
AUTO position.
• Pull the Electrical Interlock forward until the spring detent ball is in
front of the Interlock brack et.
• Run the standard Relay t est sequence of opening and closing. (Repeat
electrical OPEN and CLOSE operations a min of 20 times)
• Check closing of the breaker with the outside handle. (5 operations)
RESTORATION
1. After completion of successful tests, the NWP may be reinstalled as follows:
2. Verify External Handle in the OPEN postion.
3. Lift the lev-in drive shutter door and insert the 3/8” square end of the wrench into the lev-in drive
socket
4. Turning clockwise until the “RED” indicator appears.
5. Remove crank and secure
6. Close door and tighten hinge bolts first
7. Place handle in the automatic position
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