Locknetics PS904-4RL-FA Power Supply Amps
Special Order: typically 2–6 weeks
Ships directly from the manufacturer. This is an estimated lead time, not a guaranteed delivery date.
Availability can change and lead times may be longer. If your project has a deadline, check with us before ordering.
A member of our team will check with the manufacturer and personally reply by email.
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Key Features
- Delivers dependable, filtered Class 2 low-voltage power to keep access control devices online and reduce nuisance faults
- Selectable 12V/24V output with 4A total capacity to support electrified strikes, electromagnetic locks and card readers without guesswork
- Integrated AC/DC monitoring with visible LEDs and isolated SPDT contacts for easy supervision and alarm integration
- Automatic battery back-up voltage selection and compact enclosure simplify installation and ensure continuous operation during outages
- Optional plug-in fire alarm board and polarized option-board connectors streamline system expansion and field maintenance
Quick Specifications
- Product Model
- PS904-4RL-FA
- Sector
- Access Control
- Brand Name
- Locknetics
- Product Name
- Power Supply
Explore the details
Product information
PS904-4RL-FA
Overview
For reliable, always-on access control power, the Locknetics PS904-4RL-FA Power Supply provides stable, supervised low-voltage output tailored for security and monitoring installations. Built for system integrators and facility managers, this Class 2 power supply delivers up to 4A of filtered, regulated current with selectable 12V or 24V outputs, ensuring consistent performance for electrified strikes, electromagnetic locks and card readers. Onboard AC input and DC output monitoring LEDs plus isolated SPDT contacts simplify integration with alarm panels and building management systems, while the automatic battery back-up board preserves operation during power loss. The compact enclosure and polarized option-board connectors reduce installation time and wiring complexity, making the PS904-4RL-FA a practical fit for retrofit and new-build access control projects. RoHS compliant and designed for demanding security environments, it supports surveillance and monitoring applications where uptime and supervision matter. Specify the Locknetics PS904-4RL-FA for turnkey power reliability—order now or contact your sales representative to discuss system compatibility and deployment.
Features
- Delivers dependable, filtered Class 2 low-voltage power to keep access control devices online and reduce nuisance faults
- Selectable 12V/24V output with 4A total capacity to support electrified strikes, electromagnetic locks and card readers without guesswork
- Integrated AC/DC monitoring with visible LEDs and isolated SPDT contacts for easy supervision and alarm integration
- Automatic battery back-up voltage selection and compact enclosure simplify installation and ensure continuous operation during outages
- Optional plug-in fire alarm board and polarized option-board connectors streamline system expansion and field maintenance
| General Information | |
|---|---|
| Sector | Access Control |
| Brand Name | Locknetics |
| Manufacturer | Allegion plc |
| Product Name | Power Supply |
| Product Type | Power Supply |
| Product Model | PS904-4RL-FA |
| Manufacturer Part Number | PS904-4RL-FA |
| Technical Information | |
| Output Voltage | 12V DC, 24V DC |
| Physical Characteristics | |
| Depth | 4" |
| Width | 12" |
| Height | 14" |
| Weight | 9lb |
| Power Description | |
| Output Current | 4A |
| Miscellaneous | |
| Compatibility | Compatibility: Electrified Strikes Electromagnetic Locks Card Readers |
| Country of Origin | MX |
| Environmentally Friendly | Yes |
| Environmental Certification | RoHS |
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Plan your purchase
Is this right for your project?
Confirm the model, required accessories and delivery needs before ordering.
- SKU:
- PS904-4RL-FA
- Manufacturer part:
- PS904-4RL-FA
How do I confirm compatibility?
Check the specifications and manufacturer documents for your existing system. Send us your model numbers and project requirements if you need help selecting equipment or accessories.
Ask a product specialistWhen will this item ship?
Availability is shown above. Special-order items and project quantities may need additional lead time. Contact us to confirm a delivery date before scheduling installation.
Shipping, freight and delivery detailsWhat should I know about returns?
Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.
Read return eligibility and exclusionsLocknetics PS904-4RL-FA Power Supply Amps
PS904-4RL-FA