Product Specification Sheet APS347

Rev. 08/2013

PSDC24 Series 24VDC System Power Supplies (PRO700 Series)

PSDC24-12 (12Amp)

PSDC27-5 (4.8Amp)
PSDC24-1.3 (1.3Amp)

PSDC24 / PSDC27 Series Power Supply Units
The PSDC24 and PSDC27 series 24VDC and 27VDC transformer power supplies are specifically designed to provide power for the PRO700 series intercom system. One (1) power supply is required for each system, and there is no central exchange required. There are three (3) models with varying outputs, depending upon the total number of masters and/or remotes on each system.
  • 24VDC/27VDC, 50 / 60 Hz Output
  • Heavy duty construction
  • Three (3) models available
  • (U.L.) Listed (when used in U.S.A.)
Heavy duty steel case finish, with mounting plate
24VDC, 50 / 60 Hz, 12 Amps (Model# PSDC24-12), 1.3 Amps (Model# PSDC24-1.3), 27VDC, 50 / 60 Hz, 4.8 Amps (Model# PSDC27-5)
Total No. of Masters and Remotes
40 Maximum (1- Model# PSDC24-12)
20 Maximum (1- Model# PSDC27-5)
10 Maximum (2- Model# PSDC24-1.3)
5 Maximum (1- Model# PSDC24-1.3)
120VAC, 50 / 60 Hz, single phase
All models except PSDC24-1.3 will also work with 220VAC,50 / 60 Hz, single phase (requires a small field modification by customer).
AC cord with grounded plug, 6' 2 wire output
Architects' And Engineers' Specifications
The system Power Supply shall be Alpha Communications® / Ring PSDC24 or PSDC27 series or approved equivalent. Unit shall be used with the PRO700 series intercom system. Unit shall provide 24VDC / 27VDC power and shall operate on 50/60 Hz. Power supply shall be provided with an AC cord and grounded plug.

Transformer/power supply shall be U.L. listed. Contractor shall provide a power supply of sufficient amperage, depending upon the total number of master and/or remote stations in the system.

Contractor shall observe all local and national electrical and building codes.

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Due to continuous product improvement, all colors, sizes, materials, finishes and specifications are subject to change without notice.