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2. The index codes for each relay can be determined from the relay part number
and its suffix that is marked on the nameplate attached to the front of the relay.
The first two digits of the index code are the last two digits of the part number,
and the second two digits of the index code are the last two digits of the suffix.
The index number should agree with the placement of the indexing pins in the
numbered vertical rows on the back of the relay, starting with the top pin and
reading down.
3. The index code for each mounting base is determined by the placement of the
holes in the numbered vertical rows of the large white nylon indexing plate that is
affixed to the front of the mounting base. This indexing plate should not be
removed from the mounting base unless it is damaged or the indexing is to be
purposely changed to accommodate a relay of a different part number. Discard
the indexing plate that comes in a bag tied to the handle of all new relays, unless
it is needed for replacement or a damaged indexing plate or for application to a
new mounting base.
Never drill new holes in a base indexing plate that will permit
application of relays with different part numbers. Never
change indexing pins on the back of a relay unless it is being
converted to a new part number, otherwise a hazard will be
created that may compromise safety circuit functions.
2.4. Receptacle Contact Springs
2.4.1. Old-Style Base Only (N398314)
The N398314 mounting base normally will be equipped with the required quantity of
J680165 solderless receptacle contact springs and will accommodate one or two #14 or
#16 wires. It can, however, be equipped with receptacle contact springs for one or two
#10 or #12 wires (J680181), or for one or two #18 or #20 wires (J680179). Make certain
which type of solderless receptacle contact springs accompanies the mounting base
before proceeding with their installation.
2.4.2. Improved One-Piece Base Only (N451376-0302)
The new one piece mounting base with hardware includes a full complement of
receptacle contact springs (M451142-2702) to accommodate one or two #14-#16 wires,
mounting fasteners and tags. It can, however, be equipped with receptacle contact
springs for one or two #10-#12 wires (M451142-2703), or for one or two #18-#20
(M451142-2701). Make certain which type of solderless receptacle contact springs
accompanies the mounting base before proceeding with their installation.
Each solderless receptacle contact spring should be inspected for physical damage
before proceeding with installation.
The following is recommended when installing solderless receptacle contact springs
after crimping wires:
Copyright 2019
WARNING
SM 5929 Rev. 23, March 2019
PN-152SO Switch Overload Relay
2-2
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