HONEYWELL MULTIPLE METER UNITS (MMU)
7
62-0400-01
5.0 MMU CABINET INSTALLATION
5.1 MMU Cabinet Description
The MMU Cabinet is made from 14 or 16 gauge steel. The cabinet has an ANSI 61
gray exterior finish. It contains a seam that is continuously welded and ground smooth.
The heavy gauge continuous hinge pin that connects the door and the enclosure body
are removable. There are screw-down clamps located on the door for easy locking of
the cabinet.
Fig. 2. Cabinet Dimensions.
5.2 MMU Cabinet Installation
The dimensions of the MMU8, MMU16, and MMU 24 cabinet are shown in Figure 2.
The MMU cabinet shall be mounted in an upright orientation as shown in Figure 3. The
MMU cabinet must only be installed by personnel with the proper electrical licensing
for the intended location.
Use appropriately sized mounting hardware to fasten the MMU enclosure to the
selected mounting surface. The four housing mounting holes are located on the upper
and lower mounting brackets.
Serviceability/field Repair Service and repair should be completed by qualified
personnel only. Meters cannot be calibrated in the field. Adjustment is limited to reset
of the meter display and should be performed by qualified personnel only. The
configuration is stated on each meter nameplate.
The MMU enclosure is not supplied with knockouts. The installer will make the
necessary entrances to the enclosure to supply entry for the voltage and current
sensor conductors. The conduit and fittings must be appropriate for the application and
installed in a manner to meet national and local electrical codes.
M34287
SIDE VIEW
FRONT VIEW
B
C
7
(178)
3-3/8
(86)
2
(51)
7/16 (11)
DIA
1-1/4 (32)
1-1/4 (32)
3-3/8
(86)
DOOR
CLAMP
PADLOCKING
HASP
A
MMU
DIMENSIONS
IN INCHES AND (MM)
A
B
C
HMMU-8
HMMU-16
HMMU-24
24 (610)
24 (610)
30 (762)
12 (305)
20 (508)
24 (610)
1-1/4 (32)
3 (76)
3 (76)
MMU
METER
CONFIGURATION
TASK
METER
SPACES
ACROSS
DOWN
HMMU-8
HMMU-16
HMMU-24
2 (51)
4 (102)
5 (127)
4 (102)
4 (102)
5 (127)
8 (203)
16 (406)
24 (610)
5/8
(16)
7/16
(11)