EN54 / LCD series switched mode and regulated power supply (with a transformer), for approved fire protection systems. Dimensions: 385 x 402 x 88 mm, Input: 230 VAC (-15% / +10%), Output: 4.2 A / 27.6 VDC - for continuous operation, 5.0 A / 27.6 VDC - for intermittent operation, with tamper tamper: 1xNC for protection against sabotage. Space for 12V SLA battery (2x17Ah), SCP, OLP, OVP, UVP protections. Technical outputs: EPS (AC grid failure) and ALARM (collective failure). technical inputs: EXTi (external fault). Complies with EN54-4, EN12101-10, CNBOP-PIB No 1438-CPR-0628 and CNBOP-PIB No. 3501/2019 for fire alarm systems. 142W.