Altronix MAXIMAL3RH Access Power Controller w/ Power Supply/Charger, 8 Fused Relay Outputs, 12/24VDC @ 6A, 115VAC, 2U
- 115VAC 60Hz., 1.9 amp
- Normally closed [NC] or normally open [NO] dry contact inputs (switch selectable)
- 12VDC or 24VDC @ 6 amp total output current
- Eight (8) fuse protected outputs
- Maximum current per ACM8R-M output is 2.5 amp

Maximal 3RH rack mount access power controller distributes and switches power to access control systems and accessories. It converts a 115VAC 50/60Hz input into eight (8) independently controlled 12VDC or 24VDC fuse protected outputs. Outputs are activated by an normally open (NO) or normally closed (NC) dry trigger input from an Access Control System, Card Reader, Keypad, Push Button, PIR, etc. This unit will route power to a variety of access control hardware devices including: Mag Locks, Electric Strikes, Magnetic Door Holders, etc. Outputs will operate in both Fail-Safe and/or Fail-Secure modes. The FACP Interface enables Emergency Egress, Alarm Monitoring, or may be used to trigger other auxiliary devices. The fire alarm disconnect feature is individually selectable for any or all of the outputs.
Altronix MAXIMAL3RH Access Power Controller Features
- 115VAC 60Hz., 1.9 amp: Provides reliable power for access control systems and devices.
- Normally closed [NC] or normally open [NO] dry contact inputs: Offers flexibility with switch-selectable configurations for various installation needs.
- 12VDC or 24VDC @ 6 amp total output current: Supports a wide range of devices with adequate power delivery.
- Eight (8) fuse protected outputs: Ensures protection for connected devices against overloads and shorts.
- Maximum current per ACM8R-M output is 2.5 amp: Allows efficient operation of high-demand devices without risk.
- Individually selectable Mag Lock/Strike: Lets the user choose Fail-Safe or Fail-Secure modes based on security needs.
- Thermal and short circuit protection: Automatic reset feature prevents damage and enhances system longevity.
- Latching or Non-Latching fire alarm reset switch: Customizable options ensure compliance with safety regulations.
- Remote reset capability: Facilitates maintenance with minimal downtime.
- Individual Output Status LEDs: Easy monitoring of system status from the front panel.
- Maximum charge current 0.7 amp: Efficient charging of back-up batteries.
- Automatic switch over to stand-by battery: Guarantees uninterrupted power during AC failures.
- Zero voltage drop during battery backup: Ensures smooth operation even in power outages.
- AC fail supervision: Alerts users of power interruptions via form “C” contact.
- Low battery and battery presence supervision: Prevents system failure through timely notifications.
- Removable terminal blocks: Simplifies installation and maintenance with locking screw flange.
- 3-wire line cord: Provides a secure and efficient power connection.
- Illuminated master power disconnect circuit breaker: Enhances safety with manual reset capability for emergency situations.
Altronix MAXIMAL3RH Detailed Specifications
| Input Voltage | 115VAC 50/60Hz |
| Total Output Current | 6A (12VDC or 24VDC) |
| Output Configuration | 8 Fuse Protected Outputs |
| Maximum Current per Output | 2.5A |
| Battery Backup | Automatic switch-over with zero voltage drop |
| Supervision Contacts | Form “C” for AC failure and low battery |
| Thermal Protection | Yes, with auto-reset |
| Fire Alarm Reset | Latching or Non-Latching options |
| LED Status Indicators | Individual for each output |



