Telergon Bypass switch disconnector, size 2, 3P + N, 500ABypass changeover switches on load, are available from 125 to 2000A in 3P 3P+N & 4P versions under request on order. Uninterrupted duties in extreme tropic and polar conditions, as well as the polluted environment of any industrial process. Protection against accidental over voltages in equipment connected between phase and neutral (our standard 3P+N) whit advanced switched neutral pole (early make late break).