Product Specification Sheet APS963

Rev. 11/2015

B-5248A Power Supply for Area of Rescue Assistance Systems

Architects' And Engineers' Specifications

The Power Supply (with Battery Back-Up) shall be Alpha Communications┬« / Cornell model B-5248A or approved equivalent. The Power Supply shall be housed in a steel (surface mount) enclosure, painted in a baked enamel finish, and shall be supplied with a cam lock and keys. Unit shall be approximately 15.75" H x 11.25" W x 4.50" D. The Power Supply shall provide 12VDC (8 amps) continuous supply, and shall have LED Indicator Diagnostics. The power supply shall operate at 115VAC/60 Hz. Unit shall be supplied with two (2) 12VDC (7.5 Amp/Hour) batteries. Battery type and size shall be sufficient to allow the master station to operate on battery power (in Standby Mode only) for minimum of 24 hours. 

The B-5248A shall operate on the 4800 Series Rescue Assistance System(s), and shall be UL 1481 Listed.

Multiple power supplies are required to accommodate systems with more than 50 Remote Call Stations. 

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

B-5248A Power Supply for Area of Rescue Assistance Systems

The B-5248A Power Supply with Battery Back-Up converts a 115VAC/60 Hz. input to a 24VDC output, and is UL 1481 Listed for fire alarm, burglar alarm and access control applications. The B-5248A Power Supply with Battery Back-Up is designed to be used with our 4800 series Area of Rescue Assistance Systems, to provide system power and emergency back-up power when required.

The B-5248A Power Supply comes complete with power supply, enclosure, cam lock (and keys), battery leads and two (2) 12VDC batteries.

  • UL 1481 Listed, FCC Approved
  • Short Circuit and Thermal Overload Protection
  • Housed in a Locked Steel Housing
  • Provides 24VDC Output - 8 Amps
  • (2) 12VDC Batteries Included
15.75" H x 11.25" W x 4.50" D (401mm x 286mm x 115mm)
Baked Enamel finish over Steel
Outputs: 24VDC at 8 amps, continuous supply current (with LED Indicator Diagnostics)
115VAC/60 Hz. with maximum charge current of 5.0 amps
Batteries: Unit is supplied with 2- (12VDC) 7.5 Amp/Hour batteries. This allows the master station to operate on battery power (in Standby Mode Only) for minimum 24 hours as required in most state's codes.
Positive Screw Terminals
Mounting: Surface Mount
Temperature Range: 50°F - 120°F (10°C - 49°C) Indoor

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