Critical Life Safety ATS – Solenoid Class PC
Critical Life Safety ATS | Single or Dual Line Maintenance Bypass
At the core of each Advanced Life Safety ATS – Solenoid Class PC system is a four-pole ABB TruOne changeover device. Rated 230V or 400V AC, the life safety single line or dual line no-break bypass ATS, utilises a solenoid changeover switch that provides all the essential requirements for automatically switching to a secondary power source. Units are rated from 32A to 800A with a rated frequency of 50/60Hz. The single or three phase ATS units allow automatic connection of a secondary electrical supply to a load upon failure of the primary supply.
The bypass function isolates the ATS by bypassing the ‘S1’ supply or (in the case of dual-line versions) the ‘S2’ supply directly to the outgoing load, enabling essential maintenance. The ‘S1’ supply will be bypassed with no-break in supply in accordance with life safety recommendations. The Key advantage is that both the ‘S1’ supply and ‘S2’ supply to the load can be maintained whilst service and repairs can be carried out on the Advanced Life Safety ATS – Solenoid Class PC unit.
Supplied in Sheet Steel enclosures up to IP65 with a light grey (RAL 7035) paint finish, each enclosure comes standard with a removable glandplate(s). Each unit comes with a built-in controller designed to monitor the voltage of an incoming AC supply from two different sources. This could be from both generator or mains (utility), or a combination of both. The module monitors S1 (Source 1) and in the event of a failure issues a start command to S2 (Source 2). The main LED indicator lights show the status of the supplies. An auto / test switch is supplied with a set of 2 keys.
Incoming terminals or isolators are separated from each other and from the transfer switch using rigid metallic barriers in compliance with form 4, type 2 separation. Volt-free status relays are included within the ATS unit in order to connect to the BMS (building management system) and/or life safety systems installed within the building. Each ATS unit comes standard with mimic terminals for easy connection to a remote mimic panel.
Optional communication modules e.g. Modbus / Ethernet can be requested within the ATS unit in order to connect to the BMS (building management system) and/or life safety systems installed within the building. Applied standards: BS EN / IEC 60947-6-1 & BS 8519:2020.
Products are available on request. Contact us today to discuss your requirements.
Craig & Derricott offer an optional commissioning service on all of their Automatic Transfer Switches (ATS) – click here for more information.
