Altronix AL400XPD16CB220 Dual-Output Power Supply 16 PTC

Altronix AL400XPD16CB220 Dual-Output Power Supply with 16 Managed Outputs

Overview

The Altronix AL400XPD16CB220 is a regulated dual-output power supply engineered for mid-scale security and access control installations. This unit delivers selectable 12VDC at 4 amperes or 24VDC at 3 amperes to the primary load, with 16 additional individually protected outputs via Power Takeover Control (PTC) architecture. The AL400XPD16CB220 serves as a centralized power and supervision platform for distributed security devices including card readers, electromagnetic locks, and auxiliary control circuits.

Key Features

• Dual-Voltage Output: Selectable 12VDC@4A or 24VDC@3A main output accommodates mixed-voltage device deployments without requiring separate power supplies
• 16 PTC-Protected Outputs: Sixteen individually supervised auxiliary outputs with Power Takeover Control prevent nuisance shutdowns from load faults and enable granular circuit management
• Compact Form Factor: Designed for wall or DIN-rail mounting in control rooms, telecom closets, and equipment racks without consuming excessive space
• 220 Designation: Indicates integrated 220VA battery charger capability, supporting standby power for critical access control and emergency egress systems
• Integrated Supervision: PTC outputs provide real-time monitoring of connected loads, alerting integrators to open circuits, shorts, and power anomalies
• Professional-Grade Reliability: Built for 24/7 security operations with thermal protection and current limiting to prevent cascade failures

Integration & Compatibility

The AL400XPD16CB220 integrates directly into legacy and modern security ecosystems. Its dual voltage configuration supports Altronix access control panels, door strike controllers, and third-party magnetic lock systems operating at either 12V or 24V. The 16 PTC outputs are compatible with standard 12V and 24V loads rated up to the published current limits. The integrated battery charger works with sealed lead-acid or compatible backup batteries to maintain power during AC mains failure, critical for systems requiring continuous egress capability. Integrators commonly pair this unit with Altronix supervision modules and networked access control platforms for remote monitoring and fault logging.

Ted Perry

Perspective based on aggregated IP Security Depot and affiliated engineering team experience.

I've specified the AL400XPD16CB220 on several mid-sized access control projects where distributed loads required individual fault tolerance and the site lacked the budget for enterprise-class managed power platforms. This unit delivers exactly that—reliable, granular output supervision without proprietary dependencies.

Technical Highlights:

• Dual-Voltage Flexibility: The selectable 12V@4A or 24V@3A main output eliminates the need to stock separate power supplies when integrating mixed-voltage readers, locks, and solenoids on the same job.
• PTC Output Management: Sixteen individually supervised outputs mean each auxiliary load is monitored independently. A short on one output does not disable the others—critical when a single failed lock or reader could compromise egress or system availability.
• Battery Charger Integration: The 220 designation refers to the built-in charger, which keeps backup batteries topped during normal operation and maintains critical loads during power loss. Size your battery bank per site requirements and backup duration.

Deployment Considerations:

• Calculate total load across all 16 outputs and the main output to ensure combined current does not exceed system capacity; PTC supervision does not eliminate the need for proper load planning.
• Mount in a clean, ventilated enclosure or equipment rack away from moisture and heat sources; thermal overload protection engages if ambient temperature rises excessively or airflow is blocked.
• Pair with appropriately sized backup batteries and test quarterly to verify charger function and battery condition; battery failure under emergency conditions is a common integration oversight.

The AL400XPD16CB220 is a dependable workhorse for integrators managing small to mid-scale access and security networks. Its output supervision and dual-voltage capability reduce on-site troubleshooting time and support flexible device configurations. Specify this unit when you need granular circuit protection and battery backup in a single, space-efficient form factor.