Altronix MAXIMAL37E Dual-Output Expandable Power Supply

Altronix MAXIMAL37E Expandable Power Supply/Charger

Overview

The Altronix MAXIMAL37E is a dual-output expandable power supply and charger designed for security and access control system installations requiring flexible voltage and current distribution. This unit delivers two independent power supplies within a single BC800 enclosure: one 12/24VDC output rated at 6A, and one dedicated 24VDC output rated at 10A. The expandable architecture supports system growth without requiring complete unit replacement, making it ideal for distributed access control, video surveillance infrastructure, and networked security applications where modular power delivery is essential.

Key Features

• Dual Independent Outputs: 1 × 12/24VDC @ 6A and 1 × 24VDC @ 10A for flexible voltage configuration
• Total Current Capacity: 16A aggregate power delivery across both supplies
• 115VAC Input: Standard single-phase AC mains connection
• BC800 Metal Enclosure: Compact, DIN-rail mountable form factor suitable for electrical rooms and equipment racks
• Expandable Design: Modular architecture supports future capacity additions without full system replacement
• Battery Backup Integration: Charger function enables auxiliary battery backup for critical circuits
• Isolated Outputs: Separate power supplies allow independent load management and fault isolation
• Industrial-Grade Construction: Metal enclosure with integrated thermal protection for continuous operation

Integration & Compatibility

The MAXIMAL37E integrates into access control panels, video management systems, and intercom infrastructure requiring redundant or segregated power circuits. The dual-voltage capability accommodates both 12V and 24V field devices without requiring separate conversion modules. The charger output enables trickle-charging of auxiliary backup batteries, providing holdover power during mains failures. The BC800 enclosure footprint matches standard electrical cabinet layouts, simplifying integration into existing installations. Independent outputs prevent voltage sag from high-current loads on one circuit from affecting sensitive control circuits on the other, critical for systems combining high-draw switching power with low-current microprocessor circuits.

Specification Summary

Input: 115VAC, single-phase. Output Configuration: Two independent supplies — 12/24VDC @ 6A (selectable) and 24VDC @ 10A. Enclosure: BC800 metal chassis. The modular expandable design allows integration of additional power cards within the BC800 frame, accommodating larger installations or future system expansion. The MAXIMAL37E serves as the foundation power stage for multi-stage security infrastructure deployments.

Ted Perry

The Altronix MAXIMAL37E addresses a common field requirement: powering access control and video infrastructure from a single enclosure without voltage conflict or current starvation. During a recent multi-door access system retrofit, we specified the MAXIMAL37E because the 12/24V selectable output accommodated legacy 12V magnetic locks alongside new 24V electronic strikes—eliminating the need for separate supplies and simplifying cabinet wiring.

Technical Highlights:

• Dual-Output Isolation: The separate 6A and 10A supplies prevent nuisance brownouts when door hardware draws peak current; video and access control remain stable
• Battery Charger Function: Built-in charger output allows auxiliary battery integration for graceful power-loss handoff without additional modules
• Expandable Frame: The BC800 form factor accepts additional power cards, scaling capacity from 16A to 30A+ without cabinet redesign

Deployment Considerations:

• Verify legacy 12V device voltage tolerance before selecting the selectable output; some devices require fixed 24V supply
• Size backup batteries based on aggregate load current; the charger output should match your auxiliary battery amp-hour rating
• Plan cable routing to keep AC mains lines separated from low-voltage outputs to minimize conducted noise on access control circuits

The MAXIMAL37E is a practical choice for integrators standardizing on modular power architecture. Its dual outputs and expandable design reduce parts inventory and deployment complexity, while the charger function enables battery-backed critical circuits without external UPS hardware.