Vesda VPS-100US-120 power supply unit, 120 VAC input, for VESDA aspirating smoke detection systems.

Compliance

• NFPA 70
• UL 1481

Key features

• 120 VAC / 60 Hz input with 27.6 VDC nominal output at 1.5 A continuous
• Filtered and electronically regulated output for stable detector power
• AC fail, low AC brownout, and battery supervision circuits
• Built-in charger for sealed lead-acid or gel-type batteries (batteries ordered separately)
• Automatic switchover to standby battery on AC failure; AC input LED indicator
• Trouble relay: Form C contact rated 2 A at 30 VDC; screw terminal blocks accept 12–30 AWG cable

VESDA by Honeywell (formerly Xtralis) power supplies provide regulated, battery-backed power for VESDA aspirating smoke detection systems. The VPS-100US single-zone unit is designed for installations where continuous detector operation must be maintained through AC power interruptions, as required in data centers, clean rooms, and mission-critical facilities. Two VBT-012 sealed lead-acid 12 VDC batteries are required per unit (ordered separately).

Verify panel/device family compatibility before ordering.