Meter Enclosures

Easy meter installation with pre-wired Meter Management Units

Complete metering assembly with terminal blocks, fuses and optional test terminals.

SHM supplies an extensive range of meters mounted in a sealable rugged enclosure known as a Meter Management Unit or MMU.  The MMU can be surface mounted on a wall or on a panel.

The MMU includes meter fuses and a neutral disconnect link – essential if no fused meter supply has been provided and the meter must be connected direct to the busbars.

All connections are to DIN-rail terminal blocks inside the unit.  Wiring access is via conduit knock-outs.

Optional shrouded voltage reference sockets can be provided to allow easy connection of a portable power analyser for checking/testing.  The power analyser’s clip-on CTs are used to monitor the current, and the analyser readings can be cross-checked against the meter readings.

CT shorting links provide for safe meter servicing.



  • Meter ready to install – no cut-outs or special mounting facilities required
  • No need for separate meter fusing
  • Saves installation time and costs
  • Easy meter servicing
  • Voltage verification points available

Click here to view brochure (117k).

shm mmu em21

MMU1D (Standard Width)

Provides voltage fuses and neutral-disconnect links.  Both 3-phase and single-phase units available.  Optional shrouded voltage test points and optional CT shorting links.

Model shown is MMU1C3-P-T.

shm mmu2a enclosure

MMU2E (Dual Meters)

As MMU1 but with space for two meters.

Model shown is MMU2E3.

shm mmu4 enclosure

MMU4 (Tall)

The MMU4 has space for four meters with separate voltage fusing/disconnection for each meter and shorting links for all CTs to allow meters to be independently changed.

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For bulk discounts, complex purchases, or if you'd prefer to talk to a consultant on the telephone please ring 01962 865142. We supply everything from a single meter to a complete system. We accept payment by credit card or company purchase card.