Power supply insert, security technology, Busch-Infoline, power supply insert For supplying power to call and alarm systems. Transformer for installation in flush-mounted boxes in accordance with DIN 49073, Part 1. Short-circuit proof Nominal voltage: , +10 % / -10 % Nominal frequency: 50 Hz/60 Hz Nominal current: 150 mA Protection class device: SELV Temperature range device: 5 °C to 40 °C
