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Grey wall-mount enclosure with built-in transformer for 6 or 12VDC output

ALTRONIX

ALTRONIX SMP3ET 6/12VDC 2.5A Enclosure & Transformer

SKU CH-S2KB-CF9T9 MPN SMP3ET

High-current power supply charger converts low-voltage input to 6 or 12VDC output at 2.5A with automatic battery backup switchover for access control and security systems

  • Converts low voltage to 6 or 12VDC output
  • Built-in charger maintains gel and sealed lead acid batteries at full capacity
  • Automatic switchover to backup battery during power outage
  • Grey wall-mount enclosure protects internal components
  • Delivers 2.5A current for access control security and CCTV systems

Power Supply for Access Control

The ALTRONIX SMP3ET is a power supply and charger designed for access control, security, and CCTV systems. It converts low voltage input into a 6 or 12VDC output at 2.5A. The built-in charger maintains gel and sealed lead acid backup batteries at full capacity. This unit suits installers who need reliable DC power for low-voltage security devices.

Automatic Switchover Limits

The charger keeps backup batteries ready for a mains failure. When input power is lost, the supply automatically switches to battery power without interruption. Output voltage is selectable between 6 and 12VDC with a maximum current of 2.5A. The 40VA rating defines the practical limit for connected loads. Systems requiring higher current or different voltages will need a separate supply.

Wall Mount Enclosure Build

The unit is housed in a grey metal enclosure designed for wall mounting. This protects the transformer and circuitry inside a fixed installation. Internal terminals accept battery leads and load wiring for a clean, permanent setup. The straight blade plug connects directly to a standard mains outlet. Outdoor or rack mount applications would need a different housing.

Highlights

  • Converts low voltage to 6 or 12VDC output
  • Built-in charger maintains gel and sealed lead acid batteries at full capacity
  • Automatic switchover to backup battery during power outage
  • Grey wall-mount enclosure protects internal components
  • Delivers 2.5A current for access control security and CCTV systems

Specifications

BrandNULL
Shipping weight2.72 kg
Package size229 × 203 × 102 mm

Questions about this item

Should I set the SMP3ET to 6V or 12V for my access control panel?

Choose the voltage that matches the panel's rated input; the unit delivers either 6VDC or 12VDC at up to 2.5A.

What does the 2.5A rating mean when the SMP3ET is powering a CCTV recorder?

It can supply a continuous 2.5A at the selected voltage, so the recorder and any peripherals must stay within that total current draw.

What input does the straight blade plug on the SMP3ET accept?

The plug is designed for standard mains voltage; the internal transformer steps it down to the 6/12VDC output.

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