Honeywell HLSPS50 Power Supply Unit

Technical Overview

The HLSPS50 (HLSPS50) is a high-integrity, fully monitored power solution engineered by Honeywell for critical life safety and security infrastructure. Certified to AS 7240.4:2018 standards and ActivFire listed (AFP-3441), this unit provides a regulated 28V DC output with integrated battery management. The HLSPS50 (HLSPS50) is designed to maintain system uptime during primary AC failure, featuring sophisticated fault-monitoring relays and a site-selectable standby architecture for 24-hour or 72-hour backup configurations.

Detailed Technical Specifications

The following parameters detail the electrical and physical capabilities of the HLSPS50 (HLSPS50):

• Input Requirements: 115V to 230V AC (Auto-sensing), 50/60 Hz.

• DC Output Voltage: Nominal 28V DC.

• Current Capacity: 5.0A total load (when battery charging is inactive).

• Intelligent Battery Charging: * 300mA setting for 7.2Ah battery arrays.

• 600mA setting for 17Ah battery arrays.

• Output Configuration: 2 monitored DC outputs.

• Fault Monitoring: 1× Fault Relay Output rated at 1A @ 24V DC for remote diagnostics.

• Battery Storage: Internal chassis space for up to 2 × 18Ah lead-acid batteries.

• Physical Footprint:

• Enclosure Dimensions: 377 mm (W) × 408 mm (H) × 92 mm (D).

• Mounting Centers: 337 mm Horizontal / 352 mm Vertical.

• Wiring Interface: Supports cable cross-sections up to 2.5 mm² CSA.

• Environmental Rating: IP30 protected steel enclosure.

• Compliance Standards: AS 7240.4:2018; ActivFire Listed (AFP-3441).

Operational Resilience & Safety

The HLSPS50 (HLSPS50) is purpose-built for fire alarm control panels and emergency notification systems. Its "fully monitored" status means the unit constantly checks for AC loss, battery disconnection, and low-voltage thresholds, reporting these conditions instantly via the onboard fault relay. This ensures that in the event of a fire or security breach, the backup power supply is verified and ready to perform. The switch-mode design offers high energy efficiency while maintaining the strict voltage regulation required by sensitive detection electronics.