TFL (LU) Form 4 Type 2 ATS – Solenoid Class PC
Craig & Derricotts TFL (LU) Form 4 Type 2 ATS has at the core of each system is a four-pole ABB TruONE transfer switch. Rated 230V or 400V AC the ATS will provide all the essential requirements for automatically switching to a replacement power source. Units are rated from 32A to 250A 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 may be bypassed without a 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 ATS unit.
Supplied in Sheet Steel enclosures up to IP65 with a Light Grey (RAL 7035) paint finish, each enclosure comes standard with a removable gland plate(s). Stainless Steel options are available on request. Each ATS unit comes standard with incoming isolators for both primary and secondary supplies. Volt-free status relays are included alongside a modbus communication module within the ATS unit in order to connect to the BMS (building management system) and/or life safety systems installed within the building.
The main LED indicator lights show the status of the supplies. A test switch is supplied with a set of 2 keys to allow for testing and commissioning of the ABB TruONE transfer switch. A mains return inhibit feature is accessible through the TruONE HMI. Incoming isolators and the bypass arrangement are separated from each other and from the transfer switch using rigid metallic barriers resulting in Form 4, type 2 separation.
Applied standards: BS EN IEC 60947-4, BS EN IEC 60947-6-1, BS 8519:2020, S1069, S1085, S1109
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.
