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MBKJD1A, MBKJD3A & MBKJD3B

JD Main Breaker Kit

for P1-400 Panelboard

Installation

Instructions

11-A-1115-01 Rev. 05

-4-

NOTE:  For both feed location configurations, the breaker handle must point upward when in the “ON” position.

BREAKER

SUPPORT

UP

SUPPORT

BARRIER

ORIENTATION

TOP FEED CONFIGURATION

BOTTOM FEED CONFIGURATION

SUPPORT

BARRIER

ORIENTATION

BREAKER

SUPPORT

Figure 2:

  Top & Bottom Feed Kit Configurations

NOTE:  For both feed location configurations, the filler is oriented as shown, with the “MAIN” label

             positioned above the breaker handle.

Figure 3:

  Top & Bottom Feed Deadfront Filler Installation

TOP FEED

BOTTOM FEED

UP

(for use in Revised P1 Panelboards ONLY)

To confirm, note the part number of the panel (marked on the interior label).

If it ends in an “N” or a “T” it is a “Revised P1” and is compatible with this kit.

(For example:  

P1E42MC250A

 is an Original P1; 

P1E42MC250AT

 is a Revised P1)

1

1

Also for JD

breaker kits

with breaker

INCLUDED.

Part numbers:

MBKJD1***A

MBKJD3***A

MBKJD12***A

MBKJD32***A

These instructions do not purport to cover all details or variations in equipment, or to provide for every possible 

contingency to be met in connection with installation, operation or maintenance.  Should further information be

desired or should particular problems arise, which are not covered sufficiently for the purchaser’s purposes, the

matter should be referred to the local Siemens sales office.  The contents of this Instruction manual shall not 

become part of or modify any prior or existing agreement, commitment or relationship.  The sales contract

contains the entire obligation of Siemens.  The warranty contained in the contract between the parties is the sole

warranty of Siemens.  Any statements contained herein do not create new warranties or modify the existing

warranty.

Trademarks - Unless otherwise noted, all names identified by ® are registered trademarks of Siemens AG or

Siemens Industry, Inc.  The remaining trademarks in this publication may be trademarks whose use by third

parties for their own purposes could violate the rights of the owner.

SUPPORT

BARRIER

ORIENTATION

BREAKER

SUPPORT

(ALREADY

MOUNTED

TO INTERIOR)

(

MUST

 BE

SECURED

TO BOTH

BREAKER

AND RAILS)

Figure 2A:  Bottom Feed

for Pre-Installed Breaker

Kit Configuration

BREAKER

SUPPORT

(ALREADY

MOUNTED

TO BREAKER)

(NO NEED

TO SECURE

OR REMOVE)

S

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