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BUS END CAPS:
Install the bus end caps on the left hand side of the far left
meter module in the assembly and the far right meter
module in the assembly. End caps are supplied on the
main switch, main circuit breaker, or main terminal box
(one flush cap and one extended cap). (See Fig. 3 below).
MAIN BUS
JOINT BOLTS
FLUSH
END CAP
-20
#
Fig. 3 Meter Module Assembly and End Cap Locations
PROVISIONS FOR HUBS OR KNOCKOUTS:
- Top Connections - Outdoor Application (1MM & 3MM)
Knockouts are not provided in top endwall. Punch proper
holes as required. Install raintight hubs on outdoor
devices.
- Top Connections - Indoor Application (1MM & 3MM)
Use the knockouts in top of module as required.
- Top Connections - Indoor or Outdoor Applications
(35MM, 37MM, 35SS, 37SS)
Remove raintight plate and punch proper holes for
installing raintight hubs. Reinstall raintight plate and
install raintight hubs into the raintight plate.
- Top Connections - Indoor or Outdoor Applications
(MTB, MFS, MCB, MHCB, or BPS)
Knockouts are not provided in top endwall. Punch proper
holes as required. Install raintight hubs on outdoor
devices.
- Backwall Connection (1MM & 3MM)
Knockouts are provided in Meter Modules. Remove
selected knockouts and pull wire through knockout
openings.
- Backwall Connection (35MM, 37MM, 35SS, 37SS)
Knockouts are provided in Meter Modules. Remove
selected knockouts and pull wire through knockout
openings.
2
MAIN
DEVICE
EXTENDED
END CAP
SCREWS
PROVISIONS FOR HUBS OR KNOCKOUTS (CONT'D):
- Bottom Connection (1MM & 3MM)
Indoor and outdoor applications use knockouts that are
provided in bottom of meter modules or main devices.
- Bottom Connection (35MM, 37MM, 35SS, 37SS)
Indoor and outdoor applications use knockouts that are
provided in bottom of meter modules or main devices.
TOP KNOCKOUT PLATE
OR RAINTIGHT PLATE
MAIN
DEVICE
BOTTOM
KNOCKOUT
PLATE
Fig. 4 Knockout Locations and Phase Connections
PHASE BALANCING, 3 PHASE SYSTEM (3MM ONLY):
Phase connectors are factory installed on the A Phase &
B Phase bus. Remove appropriate phase connectors and
balance for Phase A-B, B-C, or A-C, as needed, across
several meter modules in a complete installation. Torque
all phase connectors to 60 lb-in (6.78 N-m). (See Fig. 4
above).
INSTALL AND WIRE TENANT CIRCUIT BREAKERS:
Use only the circuit breakers listed on the meter module.
Check amperage and interrupting capacity for the
application.
TESTING AND INSPECTION:
- Recheck all main bus joint bolts for tightness. Torque to
300 lb-in. (33.90 N-m).
- Recheck all phase connectors for tightness. Torque to
60 lb-in. (6.78 N-m) minimum.
- Check all wire and cable terminations for proper installation
and tightness of lugs.
- Clean interiors of all units to remove foreign construction
material.
- Reinstall all meter socket covers and tenant breaker
covers.
RAINTIGHT
PLATE
PHASE
CONNECTORS
I.L. 70-8306
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