Eaton 24V 2.5A EN54 Universal Power Supply (SPS-2433)

The Eaton SPS-2433 is a 24V, 2.5A safety power supply certified to EN 54-4 (A2) and EN 12101-10. It provides a compact, robust way to power fire detection and signalling systems in small to large installations.

It has two electronically protected outputs and charges standby batteries of up to 7Ah (batteries not supplied), switching instantly from mains to battery if the mains fails. Clear LED status indicators on the front let installers and maintainers check the unit's status at a glance, and the discreet enclosure is suitable for public areas.

Key features

• Certified to EN 54-4 (A2) and EN 12101-10
• 2.5A maximum output current (excluding battery charging current)
• Two outputs protected by electronic circuit breakers
• Instant transition from mains to battery
• Charger fault relay, 1A/24V (NO/NC)
• Battery resistance selector switch and remote temperature probe
• LED indicators: power on (green); general, mains and charge fault (yellow); battery resistance level (blue or yellow)
• Wall-mounting enclosure with 4 x 20mm rear cable knockouts; screw-fixed door

Technical specifications

• Catalogue number: SPS-2433 (SPS-24V-2A5/BNS)
• Mains supply: 230V AC, 50Hz
• Output voltage: 27.5V DC
• Maximum output current: 2.5A
• Number of protected outputs: 2
• Battery capacity: 7Ah (not supplied)
• Operating temperature: -5°C to +40°C
• Ingress protection: IP30
• Dimensions (H x W x D): 220 x 300 x 175mm
• Weight: 4kg