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The 28371 is a 24 V power-supply kit that includes a 24 Vdc, 10 A power supply, along with hardware for mounting and wiring inside standard Campbell Scientific enclosures.

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Detailed Description

The 28371 kit includes a din rail bracket, din rail connectors, breakers, and the Phoenix Power Supply. This kit does not contain a battery and therefore requires a PS100, CH100, PS200, CH200 or possibly a larger battery if using it with our dataloggers.

The raw kit comes unassembled, but its user manual provides assembly information. If the 28371 is purchased with a prewired or UL enclosure, the 28371 will be assembled at no additional cost. If using it with a standard enclosure, Campbell Scientific will assemble it for an additional fee.



Nominal Input Voltage 100 to 240 Vac
AC Input Voltage Range 85 to 264 Vac
DC Input Voltage Range 90 to 350 Vdc
AC Frequency Range 45 to 65 Hz
Inrush Surge Current < 15 A (typical)
Power Failure Bypass
  • > 36 ms (120 Vac)
  • > 36 ms (230 Vac)
Input Fuse 10 A (slow-blow internal)
Nominal Output Voltage 24 Vdc ±1%
Setting Range of Output Voltage 18 to 29.5 Vdc ( > 24 V constant capacity)
Output Current 10 A (-25° to +60°C)
Derating 60° to 70°C (2.5%/K)
Residual Ripple < 50 mVPP (with nominal values)
Maximum Power Dissipation (no load) 9.1 W
Maximum Power Loss of Nominal Load 22 W