Description
The Locknetics PS904 900-4R-FA is a configurable commercial access control power supply package designed to provide reliable 12 or 24 VDC power for electronic locking and door control applications. This configuration combines the PS904 4-amp power supply with a 900-4R four-relay option board and 900-FA fire alarm input board, making it well suited for multi-device access control installations requiring relay control and fire alarm interface capability.
The PS904 provides a field-selectable 4 amps at 12 or 24 VDC, allowing it to support a wide range of electronic access control devices including electric locks, electromagnetic locks, strikes, door controls, and related security hardware.
A universal 120/240 VAC, 50/60 Hz input helps simplify specification for commercial installations.
This configuration includes the 900-4R four-relay option board, providing four relay outputs for access control applications requiring multiple controlled circuits.
The included 900-FA fire alarm input board allows the power supply to interface with a building fire alarm system where release or control of connected locking hardware is required.
- 4A power supply for commercial access control applications
- Field-selectable 12VDC or 24VDC output
- Universal 120/240 VAC, 50/60 Hz input
- Includes 900-4R four-relay option board
- Includes 900-FA fire alarm input board
- Supports up to two option boards
- Class 2 output
- UL 294 and ULC-S318 compliant
- FCC Part 15 compliant
- RoHS compliant
- Overload-protected DC output
- LED indicators for AC input and DC output status
- Commercial access control systems
- Electric strike power
- Electromagnetic lock installations
- Electronic locking hardware
- Door release systems
- Multi-door access control applications
- Fire alarm-connected locking systems
- Security and life-safety door control systems
- Power Supply: PS904
- Output Capacity: 4 Amps
- Output Voltage: 12 or 24 VDC
- Relay Board: 900-4R
- Relay Capacity: 4 Relays
- Fire Alarm Interface: 900-FA
- Enclosure: Grey / Light Grey
- SKU: PS904 900-4R-FA LGR
The PS904 platform is designed to simplify installation and expansion through modular option boards and polarized locking connectors. This allows installers to configure the power supply for specific door control requirements without relying on multiple separate power and relay components.
With the 900-4R relay board and 900-FA fire alarm interface already included, this PS904 configuration is a strong choice for projects requiring dependable power, multiple relay outputs, and integration with a facility fire alarm system.
Input Voltage: 120/240 VAC, 50/60 Hz
Output: 4A @ 12 or 24 VDC
Voltage Selection: Field Selectable
Enclosure: NEMA Grade 1
Enclosure Size: 14" H x 12" W x 4" D
Operating Temperature: 32°F to 120°F
Option Board Connectors: 2
Certifications: UL 294, ULC-S318, RoHS, FCC Part 15
Output Classification: Class 2
Approx. Power Supply Weight: 9 lbs.
PS904 4-Amp Power Supply Data Sheet | PS904 Installation Instructions
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