Many people are messing up with the energy meter type descriptions.
There are two standards for the wiring of bottom-connected
energy meters.
- DIN 43857
- BS 5685
In meter- or test bench descriptions you can find various expressions, all with the same meaning.
DIN 43857 refers also to:
– DIN terminal
– asymmetrical connection
– sequential wiring
– LLLLLLNN (for 3 phase 4 wire meters)
– LLNN (for singlephase meters)
– AABBCCNN (for 3 phase 4 wire meters)
BS 5685 refers also to:
– BS terminal
– symmetrical connection
– LLLNNLLL (for 3 phase 4 wire meters)
– LNNL (for singlephase meters)
– ABCNNCBA (for 3 phase 4 wire meters)
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