Terminal Wiring for Electrical Energy Meters

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)

The DIN wiring looks always similar to this.

   

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)

The BS wiring always looks similar to this.