Contact-making device for an electricity meter with contact pieces for each phase on its rear side fits each phase with a controllable jumper device for short-circuiting wires

摘要

A controllable jumper device is designed as a jumper/shorting piece (1A) either to swivel between first (1B) and second (1C) contact fingers or to move on rolling contact between the first and second contact fingers. Each phase has a controllable jumper device. The jumper/shorting piece is operated directly by the contact fingers.