Altronix SMP5WP Dual-Output 4A Power Supply

Altronix SMP5WP Dual-Output Power Supply

The Altronix SMP5WP is a compact, field-proven power supply designed for security system integrators and control panel builders who require reliable 12/24VDC output in space-constrained installations. This unit combines dual-voltage output capability with universal input voltage acceptance, making it a versatile component for access control, surveillance, and alarm system deployments across North American and international markets.

Overview

The SMP5WP delivers 4 amperes of continuous output current across selectable 12VDC or 24VDC rails, powered by either 115VAC or 230VAC input. The compact form factor and DIN-rail mounting design allow rapid integration into control enclosures without requiring extensive panel modification. This dual-voltage architecture eliminates the need to stock multiple SKUs for mixed-voltage system designs, reducing parts inventory and simplifying procurement workflows.

Key Features

• Dual Output Voltage: Selectable 12VDC or 24VDC output to match legacy and modern control system requirements
• 4-Ampere Continuous Output: Sufficient capacity for distributed door locks, magnetic sensors, and auxiliary relay circuits in medium-scale deployments
• Universal Input Acceptance: Operates from either 115VAC or 230VAC input without reconfiguration, supporting global installation sites and panel voltage variations
• DIN-Rail Mount Form Factor: Compact design for mounting within standard 35mm DIN rails in control cabinets and sub-panels
• Field-Serviceable Design: Modular construction allows quick troubleshooting and component replacement in the field
• Thermally Efficient: Low heat dissipation profile suitable for sealed or fan-cooled enclosures

Integration and Compatibility

The SMP5WP integrates into any control system architecture requiring DC distribution: access control panels, video surveillance DVR/NVR backup power circuits, gate operators, intercom systems, and intrusion alarm control boards. The standard DIN-rail mount allows side-by-side installation with relay modules, terminal blocks, and surge protection components, enabling modular panel builds. Output voltage selection is performed at installation time, making the unit compatible with both 12VDC-legacy systems and 24VDC-modernized deployments without field modifications.

Technical specifications of the Altronix SMP5WP include input rating of 115V/230V, output rating of 12/24VDC at 4A, and a compact DIN-rail enclosure suitable for harsh indoor and controlled outdoor installations. System integrators should verify the 4-ampere output capacity against total control circuit load before final panel design approval.

Eden Phillips

I've specified the Altronix SMP5WP in over a dozen mixed-voltage panel builds across the Southeast, and it consistently delivers reliable performance without the complexity of dual-SKU inventory. The voltage selector eliminates field confusion when integrating older access control readers with newer 24VDC door strike systems on the same circuit board.

Technical Highlights:

• Dual-Voltage Output: The SMP5WP's selectable 12VDC or 24VDC output means one part number covers both voltage families—reducing SKU complexity and expediting procurement cycles.
• Universal Input: 115VAC/230VAC input flexibility eliminates regional voltage variants as a project variable, simplifying international deployments and cross-regional standardization.
• 4A Continuous Rating: At 4 amperes, the SMP5WP handles mid-scale control loads: two door strikes, distributed sensor arrays, and relay/solenoid circuits without supplemental power modules.

Deployment Considerations:

• Verify cumulative control load against the 4A limit before final panel sign-off. Door strike inrush current at unlock can temporarily exceed steady-state draw; coordinate with installation timing or soft-start relays if multiple high-current devices energize simultaneously.
• DIN-rail mounting requires adequate enclosure ventilation if ambient temperature exceeds 50°C or if the panel contains multiple power-dissipating modules. Pair with thermal management fans in sealed outdoor cabinets.

For panel integrators standardizing on modular DIN-rail supplies, the SMP5WP delivers the reliability you expect from Altronix without premium pricing. I recommend it for projects where voltage flexibility justifies a single-source approach.