6 A1100 - Electronic Polyphase Meter
© Elster Metering Systems - M180 001 1E - 6.2005
6 GENERAL DESCRIPTION
6.1 Basic Meter Types
LB… DIN/BS Termination - 8.2mm bores
6.2 Current and Voltage Ratings
Unless otherwise indicated on the nameplate, all meter types are for use with 230V, 50 Hz systems.
A1100 Current (Standard) Current (Extended) Voltage
LBxA (direct connected) 20 - 100A (BS) 5 - 100A (BS) 220 - 240V
LBxB (direct connected) 10 - 60A (DIN) 5 - 85A (DIN) 220 - 240V
LBxC (CT operated) 5 -10A 1 - 2A 220 - 240V
6.3 System Connections
Meters can be supplied for direct connected or CT, 3 element (3 phase, 4 wire) or 2 element (3 phase
3 wire) applications and have the following connection capability:
Number of Elements Connection capability System Voltage (Nominal)
3 3 phase, 4 wire
2 phases of a 3 phase, 4 wire
2 phase, 3 wire
1 phase, 3 wire
1 phase, 2 wire (LCD version only)
220 - 240V Phase to Neutral
2 3 phase, 3 wire 220 - 240V Phase to Phase
Terminal Arrangements
Current Terminals
Auxiliary Terminals
8.2mm diameter bore, 2 x M6 Combi pinch screws
3.2mm diameter bore, M3 Combi pinch screws
Meter nameplates (see Figure 3 for example) are marked with the rated current, reference voltage,
frequency and relevant meter constant (pulses/kWh).
Connection diagrams (See Figure 5A for examples) are shown underneath the terminal cover.
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