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24V 1A Regulated Power Supply

£104.00 excl VAT

  • A general purpose mains to regulated 24V d.c. power supply unit intended for use in fire alarm systems of all sizes.
  • Includes a built-in 24V double pole changeover relay.
  • Provides a stabilised output of 27.6V
  • Mains On, Battery/PSU Fault and Output Triggered indicators.
  • Trigger and hold off inputs can be used to control the internal relay.
  • Optional back-up batteries can be fitted to maintain the output in the event of mains failure.


Application/operationA boxed Mains to regulated DC power supply providing 1A @ 24V DC c/w with an on-board relay.
Mains supply230V 50/60Hz.
Output1A @ 27V DC. (100mV ripple).
Battery charge capacity1.2 Ah to 2.1 Ah.
Quiescent current15mA max.
Max battery size and type2 x 12V 2.1 Ah VRLA (for approx. 80 hours stand by). Note 2 x 12V 1.2Ah VRLA will typically provide 36 hours standby.
Open collector outputsFault monitor: Normally off; Max. off voltage: +27 V DC; Max. current when on: 50mA.
IndicatorsMains On, Battery/PSU Fault and Output Triggered.
ControlsTrigger input: +5-27V DC (max. current 1mA;) Hold Off Input: +5-27V DC (max. current 1mA). Voltages with respect to 0V.
ConnectionsHold off; Trigger; Fault Output; 0V; N/O; N/C; +24V.
Product dimensions (mm)271 W x 200 H x 70 D mm.
Construction & finishHinged metal lid with grey and white label; Metal base.
IP RatingIP30.
Weight2.3kg (without batteries).
Operating conditions/temperature-5ºC to +40ºC. Max relative humidity: 95%.


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