Command Access PS440B UL 6E/CSA Linear with or 8-I/0 24VDC Power Supply

Keep doors secured and access systems online with the Command Access Technologies PS440B power supply. Designed for access control professionals, this 24VDC power supply reliably powers electric locks, strikes, mag locks and motor-driven exit devices — supporting up to 8 locks or exit trims to simplify multi-door installations. Robust solid-state outputs protect system relays and reduce service calls, while the interruption-free battery backup maintains operation during outages, minimizing downtime for security, surveillance and monitoring systems.

The PS440B’s door-mounted LED provides instant status at the point of installation, speeding troubleshooting for installers and facilities teams. UL listed and built in the USA, it combines commercial-grade durability with a 3-year limited warranty for sustained performance in high-use environments. With broad compatibility across solenoid and motor-driven devices, the PS440B is ideal for schools, healthcare campuses, commercial buildings and critical infrastructure where reliable access control power is required. Specify the Command Access PS440B power supply to improve uptime and simplify maintenance — contact sales or add to your project bill of materials today.

• Deliver reliable, uninterrupted power for up to 8 locks and exit devices to keep critical entry points secure
• Solid-state outputs protect system relays and reduce maintenance downtime for security and access control systems
• Built-in, interruption-free battery backup ensures continuous operation during power loss for 24VDC devices
• Door-mounted LED power indicator enables quick on-site diagnostics and faster troubleshooting
• Rugged, USA-built construction with UL listing and a 3-year limited warranty for long-term reliability