13 UPS – Maintenance Bypass Switches Maintenance Bypass Switches Kraus & Naimer Maintenance Bypass Switches are an accepted industrial standard wherever emergency power equipment is installed and maintained. The Maintenance Bypass Switch can be utilized as a simple method of isolating a UPS without interrupting the power source. This allows servicing of the UPS with complete safety to maintenance personnel. A wide range of models has been established, while a broad selection of designer specified options is available on request. Options Include Maintenance Bypass Switches are available as - Switch only, Enclosed or Enclosed wired to terminals. 1. Key interlock (V760) with auxiliaries for signal confirmation on locking/unlocking or to shut down the inverter of a UPS prior to switching to the bypass position. 2. Push button interlock with auxiliaries (V400). Switching only possible if push button is depressed, simultaneously closing or opening auxiliaries for signal confirmation to the UPS. 3. A solenoid interlock device (V140) that prevents the operation of the switch except under predetermined electrical conditions. 4. Automatic changeover switches also available. Current rating to AC22A – 240v amps max. cable size KVA ratings to AC22A – 240v KVA CA10B 16 2.5mm CA10B 3.68 C26 32 6mm C26 7.3 C42 63 16mm C42 14 Current rating to AC22A – 415V amps max. cable size KVA ratings to AC22A – 415v KVA CA10B 16 2.5mm CA10B 11.5 C26 32 6mm C26 23 C42 63 16mm C42 45 C80 100 35mm C80 72 C125 150 70mm C125 107 C200-4 200 M8 95mm C200-4 143 C315 315 M12 185mm C315 225 V760 V400 V140 Enclosed & Wired to Terminals
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