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Rectangular white emergency battery backup unit, 14 inches long

Philips

Philips 503441 EvoKit Emergency Battery Backup 14 in traffic safety equipment

SKU CH-FMV3-W14AF

Emergency battery backup with nickel-cadmium chemistry, 24-hour recharge, 120 V and 277 V operation, UL 90 and UL 924 compliance, seven-year rated life.

  • 7-year rated life for long-term reliability
  • 24-hour recharge restores backup power quickly
  • Dual 120 V and 277 V input fits common supplies
  • Nickel-cadmium chemistry operates from 32 °F to 131 °F
  • UL 90 and UL 924 listed for safety compliance

Philips 503441 EvoKit Emergency Battery Backup

The Philips 503441 EvoKit provides emergency battery backup for facility and traffic safety equipment. It uses nickel-cadmium chemistry and supports dual-voltage operation at 120 V and 277 V. The unit is designed for compatibility with a wide range of Grainger part numbers and manufacturer model numbers. It carries UL 90 and UL 924 safety certifications for emergency lighting applications.

Thermals noise and power draw

The backup operates within a temperature range of 32 Degrees F to 131 Degrees F. Nickel-cadmium chemistry delivers reliable performance across this span without active cooling. No fan or moving parts are present, so the unit runs silently during normal standby and charging. Power draw is limited to the recharge cycle, which completes in 24 hr.

Sustained load behavior

During an extended power outage the battery supplies emergency power for the rated duration defined by the connected fixture. The 7 yr rated life reflects long-term readiness under periodic discharge and recharge cycles. UL 924 compliance confirms the unit meets code requirements for sustained emergency operation. Capacity remains stable within the specified temperature limits.

Highlights

  • 7-year rated life for long-term reliability
  • 24-hour recharge restores backup power quickly
  • Dual 120 V and 277 V input fits common supplies
  • Nickel-cadmium chemistry operates from 32 °F to 131 °F
  • UL 90 and UL 924 listed for safety compliance

Specifications

BrandPHILIPS

Questions about this item

How do I install the Philips 503441 EvoKit Emergency Battery Backup 14 in and what step is often missed?

Mount the unit within the 32 to 131 Degrees F operating range, connect to 120 V or 277 V supply, and allow the full 24 hr recharge before first use; the step often missed is skipping that initial charge period.

What maintenance or replacement will the Philips 503441 EvoKit Emergency Battery Backup 14 in need later?

The nickel cadmium battery is rated for 7 yr of service; plan to replace the entire backup unit once that rated life is reached.

What limit appears first on the Philips 503441 EvoKit Emergency Battery Backup 14 in during sustained use?

Continuous operation above 131 Degrees F exceeds the maximum operating temperature and will trigger the first performance limit.

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