VPS-100US-120 | Vesda 120V AC Power Supply with Battery Backup for VESDA Smoke Detectors

Vesda · Fire & Life Safety

Description  The Vesda VPS-100US-120 is a power supply unit designed to deliver stable 27.6V DC output with integrated battery backup for VESDA Laser Smoke Detection Systems. Operating from a 120V AC input, it provides reliable power for single or multiple detectors, ensuring uninterrupted system functionality during power loss. The unit includes supervision, fault relay, and automatic battery switchover features, making it ideal for critical fire detection applications requiring continuous operation.     Technical Specifications  Condition New/Never Used Surplus Brand Vesda (Xtralis) Category Fire Detection and Alarm Systems Part Number VPS-100US-120 Subcategory Power Supply Unit Input Voltage 120V AC (+10% / -15%), 60Hz Input Current 1.4A max Output Voltage 27.6V DC nominal Output Current (Max) 1.5A total Single Output Current 1.2A (single 24V output) Multiple Output Current 0.5A per output (three outputs) Battery Type Sealed lead-acid, 12V DC, 12Ah (x2) Trouble Relay Form C (NO/NC), 2A @ 30VDC Operating Temperature 32°F to 120°F (0°C to 49°C) Humidity Range 10–95% RH, non-condensing Cable Access ¾” knockouts in multiple positions Cabinet Dimensions (W x H x D) 13.9 × 9 × 4.5 in (354 × 229 × 114 mm) Certifications UL, ULC, CSFM, NYMEA, FM Weight 10 lbs (4.54 kg) without batteries   Information About  VPS-100US-120 The VPS-100US-120 is part of the VESDA Power Supply Series by Xtralis, built for dependable operation with VESDA laser smoke detection networks. It consists of a mounting enclosure, a transformer, and a main circuit board, engineered to provide 27.6V DC nominal output with up to 1.5A capacity. The unit supports sealed lead-acid 12V, 12Ah batteries and features supervision for AC and battery status, ensuring rapid fault identification. Designed for 120 VAC / 60 Hz input, it includes automatic transition to backup power and is compliant with UL, ULC, CSFM, FM, and NYMEA fire protection standards. Key Features: Reliable DC Power Output: Provides 27.6V DC nominal power with up to 1.5A total output capacity. Battery Backup Capability: Supports two 12V, 12Ah batteries for uninterrupted power during AC failure. Automatic Power Switchover: Seamlessly switches to standby batteries when main AC input fails. Comprehensive Supervision: Monitors AC fail, low voltage, and battery conditions for system reliability. Integrated Fault Relay: Form C relay rated at 2A @ 30VDC for power fault notification. Environmental Tolerance: Operates between 32°F–120°F and up to 95% RH non-condensing. Flexible Output Configuration: Supports one 24V output (1.2A) or three outputs (0.5A each). UL/ULC Certified: Compliant with major fire safety and equipment standards for dependable performance. The VPS-100US-120 delivers the reliability and precision required for powering professional fire detection and smoke monitoring systems.

Brand: Vesda · Category: Fire & Life Safety

Key features

• Reliable DC Power Output: Provides 27.6V DC nominal power with up to 1.5A total output capacity.
• Battery Backup Capability: Supports two 12V, 12Ah batteries for uninterrupted power during AC failure.
• Automatic Power Switchover: Seamlessly switches to standby batteries when main AC input fails.
• Comprehensive Supervision: Monitors AC fail, low voltage, and battery conditions for system reliability.
• Integrated Fault Relay: Form C relay rated at 2A @ 30VDC for power fault notification.
• Environmental Tolerance: Operates between 32°F–120°F and up to 95% RH non-condensing.
• Flexible Output Configuration: Supports one 24V output (1.2A) or three outputs (0.5A each).
• UL/ULC Certified: Compliant with major fire safety and equipment standards for dependable performance.

Specifications

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