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Audio and visual nurse call systems for assisted living facilities, nursing homes, hospitals and outpatient medical clinics.

Traditional lights, buttons and pull cords are smartphone/WiFi integrated. Let us know what you’re trying to do and we’ll take care of you.

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Power Supply/Charger, with Battery Backup, 12 or 24 Volt, 3 Amps (includes batteries)

Product ID: B-5243A
Product SKU: B-5243A
Online Price: $654.50/each $770.00

System Quote

The Cornell B-5243A is UL listed for fire alarm, burglar alarm, access control applications and hospital signaling - nurse call equipment. B-5243A is the newest model, replacing the discontinued B-5243B.

  • Rated Output: 4 amps continuous supply current at 12 VDC and 3 amps continuous supply current at 24 VDC.
  • Power: 115VAC/60Hz, 1.45 amp. 4 amps continuous supply current at 12VDC (switch closed), 3 amps continuous supply current at 24 VDC (switch open).
  • Circuit Protection: Short circuit and thermal overload protection.
  • Termination: Screw terminals.
  • Exterior: Grey, baked enamel finish.
  • Dimensions:16” H x 12” W x 5” D
  • Mounting: Slotted keyholes make it suitable for vertical wall or rack mounting.  Unit comes complete with power supply, enclosure, cam locks, battery leads and (2) 12 Volt batteries.

Indicator LED Diagnostics:

Red-DC Green-AC Status
On On Normal Operating condition 
On Off Loss of AC
Off On No DC output
Off Off Loss of AC Discharge. No DC output 






Engineering Specifications:

The contractor shall furnish and install the CORNELL Power Supply/Battery Back-up providing 12 VDC 4 amps or 24 VDC 3 amps continuous supply current for use with 12 or 24 VDC products and other general purpose applications. Set the B-5243A to the desired DC output voltage by setting SW1 to the appropriate position. The power supply shall operate at 115 Volts AC 60 Hz.

Power Supply/Charger, with Battery Back-Up , 12 or 24VDC, 3 Amps (includes batteries)

This B-5243A power supply includes an enclosure, cam locks, battery leads and two 12 volt batteries. This Cornell power supply puts out 4 amps of continuous supply current at 12 VDC and 3 amps at 24 VDC. It has short circuit and overload protection, as well as battery backup in case of power loss. This unit is UL listed for fire and burglar alarms.  It mounts easily to the wall, with slotted keyholes for vertical wall or rack mounting. The Cornell B-5243A will supply your patient calling devices with constant power, ensuring no call goes unanswered.

For over 40 years Cornell has been supplying medical and assisted living facilities with quality wireless nurse call systems. Our team focuses on great customer service, ensuring you are 100% satisfied with your system. We design and manufacture our emergency communication systems with our client’s needs in mind. An emergency call system is a great investment in patient care.

Browse our selection of nurse call power supply systems to find the unit best suited for your needs.

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