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>Power Supplies and Enclosures

EN54C-3A17 | 17 Ah | 27.6 V DC | Fire Alarm Power Supply

Nova

The EN54C-3A17 is a dedicated power supply unit tailored for fire alarm systems, integrating a 17 Ah battery with continuous and peak current delivery of 2.2 A and 3 A, respectively.

Key features:

  • Provides uninterruptible 27.6 V DC power optimized for fire detection and smoke/heat control systems.
  • Certified compliant with EN 54-4:1997 and EN 12101-10:2005.
  • Features dual independent, short-circuit protected outputs for reliability.
  • Supports automatic temperature-compensated battery charging with low battery alerts.
  • Incorporates SCP (Short Circuit Protection), OLP (Overload Protection), OVP (Over Voltage Protection), and anti-sabotage mechanisms.

Important specifications:

  • Input Voltage: ~230 V; 50 Hz
  • Efficiency: Up to 89%
  • Output Voltage: 22 - 27.6 V (buffer), 20 - 27.6 V (battery)
  • Ripple Voltage: 30 - 150 mVp-p
  • Dimensions: 390 × 406 × 88 mm
  • Certification: 1438-CPR-0628

Optional configurations:

  • Compatible with EN54C-LB4, LB8, LS4, and LS8 for expanded functionality.
  • Includes relay output for remote monitoring and fault indication.

Physical Specifications

  • Dimensions390 x 406 x 88 cm

Environmental & Compliance

  • Ip RatingIP not specified

Electrical Specifications

  • Continuous Output Current2.2 A
  • Instantaneous Operation Current3 A
  • Ripple Voltage30 - 150 mV
  • Mains Supply230 V 50 Hz
  • Uninterruptible Power SupplyYes

Certifications

  • Standards ComplianceEN 54-4:1997, EN 12101-10:2005

Power Characteristics

  • Psu Power85.2 W

Specifications

  • Protection Against

Performance

  • Efficiency Percentage89%

Battery Specifications

  • Battery Supported Capacity Max17 Ah
  • Battery Charge Current Max0.8 A

Electrical

  • Output Voltage Nominal27.6 V
  • Output Voltage Nominal22-27.6 V buffer, 20-27.6 V battery

Physical Characteristics

  • Enclosure ColorRed

Functional Features

  • Temperature-Compensated Battery ChargingYes
  • External Power Supply Failure IndicationYes
  • Two Independent Power SourcesYes

Cooling System

  • Convection CoolingYes

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