MultiAmp PSU

Product Overview

The MultiAmp PSU is a general purpose regulated power supply unit.

  • Available in 2A and 3A versions
  • Fault Relay Output
  • Fault indicator and Resettable Buzzer
  • Earth monitoring
  • Available in ABS (BX1)
  • Available in Metal cabinets (BX10) shallow and deep versions
  • 2.5mm² cable terminals

A set of two 7Ahr batteries may be housed in the BX1 and BX10 standard cabinet and a set of two 12Ahr batteries in the BX10 deep cabinet. (Maximum size based on Ampac battery specifications)

The unit incorporates temperature sensing and compensation whereby a change in ambient temperature adjusts the battery charging voltage. The power supply will signal a Low Batt fault at 21.3 VDC.


  • Product Data Sheet


Mains Supply190 – 264 VAC
Operating Voltage27.5 VDC ± 0.2 VDC
Supply Current

2A Current limited (2Amp Version)

3A Current limited (3Amp Version)

Operating Temperature 0°C to +40°C
Relative Humidity25% - 75%
Battery Capacity 
BX1 and BX102 x 7Ahr 12V Sealed Lead Acid
BX10 Deep Cabinet2 x 12Ahr 12V Sealed Lead Acid
Maximum Charge Current400mA (2A) 600mA (3A)
Fault RelayNO,C,NC
Contact rating:1A @ 30VDC
ABS Cabinet(BX1) 300mm (H) x 360mm (W) x 100mm (D)
Metal Cabinet(BX10) 300mm (H) x 360mm (W) x 100mm (D)
Metal Cabinet

(BX10 DEEP) 300mm (H) x 360mm (W) x 200mm (D)


Item Numbers

MultiAmp PSU 2A NZ Version (ABS BX1)4555-2110
MultiAmp PSU 3A NZ Version (ABS BX1)4555-2120
MultiAmp PSU 2A NZ Version (Metal BX10)4555-2210
MultiAmp PSU 3A NZ Version (Metal BX10)4555-2220
MultiAmp PSU 2A NZ Version (Metal BX10 Deep Cabinet)4555-2310
MultiAmp PSU 3A NZ Version (Metal BX10 Deep Cabinet)4555-2320
BX10 SurroundENC3016-A