Additional modules Filters SIRCO M additional pole Pole for conversion into multi-pole isolator or changeover switch - from 16 to 125 A COMO additional pole Pole for conversion into multi-pole isolator or changeover switch - from 30 to 63 A ATyS Plug-in Module Optional plug-in module 2 inputs/2 output ATyS M solid neutral link Extra pole for transfer switch ATyS motor Motorisation module ATyS electronic module Electronic module SURGYS D40 module Plug-in replacement accessory for D40 surge arrester SURGYS G51-PV module Plug-in replacement accessory for type 2 photovoltaic surge arrester SURGYS G70 module Plug-in replacement accessory for G70 surge arrester