Altronix TP1220 Plug-In Transf...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$27.92
$26.19
Altronix TP1220 Plug-In Transformer, 115VAC 50/60Hz at 0.23A Input, 12VAC/20VA at 1.7A Output

Altronix TP1220 Plug-In Transformer, 115VAC 50/60Hz at 0.23A Input, 12VAC/20VA at 1.7A Output

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Model: TR12-1

In Stock (leaves warehouse same day if ordered before 3pm ET)

$27.92
$26.19
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Altronix TP1220 Plug-In Transformer, 115VAC 50/60Hz at 0.23A Input, 12VAC/20VA at 1.7A Output

 

The Altronix TP1220 is a reliable plug-in transformer designed to provide 12VAC power for a wide range of low-voltage applications. With a robust 20VA power rating and 1.7A output current, it is an ideal power source for security system components, including access control hardware, security cameras, and other electronic devices requiring AC power.

 

Engineered for professional installations, this unit features a compact, space-saving design that plugs directly into a standard 115VAC outlet. Its screw terminal output ensures secure and easy field wiring connections, while its UL Listing confirms compliance with rigorous safety standards for commercial and residential environments.

 

Key Features

  • Reliable Power Output: Delivers a consistent 12VAC output with a 20VA power rating (1.7A total supply current).

  • Easy Installation: Designed as a wall-mount plug-in unit that fits standard AC outlets, with screw terminal connections for quick secondary wiring.

  • Safety Compliance: UL Listed for use in the U.S. and Canada, ensuring adherence to safety and building codes.

  • Wide Operating Range: Capable of operating efficiently in temperatures ranging from 0°C to 49°C (32°F to 120°F).

  • Versatile Application: Suitable for powering access control systems, magnetic locks, door strikes, and surveillance cameras.

Technical Specifications

Input/Output

  • Input Voltage: 115VAC, 50/60Hz

  • Input Current: 0.23A

  • Output Voltage: 12VAC

  • Output Power: 20VA

  • Output Current: 1.7A

     

Mechanical & Physical

  • Dimensions (approx.): 3.35" H x 2.50" W x 1.884" D (85.1mm x 63.5mm x 47.9mm)

  • Product Weight: 0.85 lbs (0.39 kg)

  • Shipping Weight: 1.15 lbs (0.52 kg)

  • Primary Connection: 2-prong Plug (NEMA 1-15P)

  • Secondary Connection: Screw Terminals

     

Environmental

  • Operating Temperature: 0° C to 49° C (32° F to 120° F)

  • Storage Temperature: -20° C to 70° C (-4° F to 158° F)

  • Relative Humidity: 85% +/- 5%

  • BTU/Hr (approx.): 10 BTU/Hr

Manufacturer Resources

Altronix Product Guide

Product Specs

Subcategory:
Power Supply Plug-In DC
Product Group:
Electronic Access Controls
Product Subgroup:
Controllers, Power Supplies and Transformers
Commercial/Residential:
Commercial
Product Type:
Power Supply Plug-In DC
Electronic:
Yes
Product Category:
Electronic Access Controls
Department:
Door Hardware

Altronix TR12-1 – Frequently Asked Questions

1) Will the Altronix TP1220 power a 12VDC maglock or electric strike?
No. The TP1220 puts out 12VAC, not DC, so it cannot directly feed a device that requires regulated 12VDC like most maglocks. It is meant to feed AC input devices or to supply the AC primary side of an access control power supply or strike that accepts 12VAC. If your lock needs DC, use a regulated DC supply instead, such as the SDC TR Series regulated DC transformers, which are listed at 12V/24V 1 amp.
2) How much load can a TP1220 transformer carry?
20VA total, which works out to 1.7A of supply current at 12VAC. Add up the AC current draw of everything you intend to hang on it and keep the total under 1.7A. If the panel or camera you are feeding is rated in VA, keep the sum under 20VA.
3) What outlet does the Altronix TP1220 plug into, and how do I wire the low voltage side?
It plugs straight into a standard 115VAC 50/60Hz receptacle on a 2-prong NEMA 1-15P plug, drawing 0.23A on the primary. The secondary side lands on screw terminals, so you strip and land field wire directly, no pigtail splicing. No hardwired junction box is required.
4) What is the difference between the Altronix TP1220 and an SDC TR Series transformer for powering a door strike?
The TP1220 is a plug-in transformer that supplies 12VAC at 20VA, 1.7A from a 115VAC 50/60Hz outlet, with screw terminal secondary connections. The SDC TR Series is described as regulated DC power supply transformers rated 12V/24V at 1 amp with thermal protection. The practical distinction is the output type: a device that requires AC input can be fed directly from the TP1220, while a device requiring regulated DC would be matched to the TR Series instead. Confirm whether the strike or maglock on the opening is specified for AC or DC before choosing.
5) My panel needs 24V. Can I substitute the Altronix TP1220?
No. The TP1220 output is fixed at 12VAC, so it will not serve a 24V device. The SDC TR Series is listed as 12V/24V, which covers the 24V requirement. For a 24V opening, specify the TR Series rather than the TP1220.
6) Can I mount an Altronix TP1220 in an unheated garage or a parking structure?
Operating range is 0 to 49 degrees C (32 to 120 degrees F), with storage down to -20 C (-4 F). That rules out openings that drop below freezing while the system is live. Humidity tolerance is 85 percent plus or minus 5 percent, and it is a plug-in wall unit with no weather enclosure, so keep it indoors and out of direct wetting.
7) Is the Altronix TP1220 acceptable for a commercial access control install in Canada?
It is UL Listed for use in the U.S. and Canada, and it is catalogued as a commercial-grade device. That covers the transformer itself; the access control panel or lock it feeds carries its own listings.
8) What does the Altronix TP1220 typically get used for on an access control job?
It is the AC source for low voltage security gear: access control hardware, door strikes, surveillance cameras, and similar devices that accept 12VAC. Anything needing more than 1.7A, or needing filtered DC, needs a different supply.
9) I need more than 1 amp to run several access control devices from one transformer. Which option gives the higher output current?
The Altronix TP1220 supplies 1.7A at 12VAC with a 20VA rating, while the SDC TR Series transformers are rated at 1 amp. If the load calculation for the devices on the opening totals above 1 amp, the TP1220 is the one with the headroom, provided the devices accept AC input. Total the continuous draw of every device on the circuit rather than the inrush figure alone.
10) Does the Altronix TP1220 include thermal protection like the SDC TR Series?
Thermal protection is a feature called out on the SDC TR Series transformers. The TP1220 is a UL Listed plug-in transformer for use in the U.S. and Canada, delivering 12VAC at 20VA with an operating range of 0 to 49 degrees C. If an overtemperature cutoff is a requirement written into the specification for the job, the TR Series is the one that names it.
11) Will a TP1220 transformer add much heat inside a control cabinet?
Heat output is about 10 BTU/Hr. That is minimal, but it is a plug-in unit with a 2-prong cord plug rather than a cabinet-mount transformer, so it is meant to sit at the receptacle and feed the enclosure by wire, not to live inside a sealed can.
How fast can I get the Altronix TR12-1 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Altronix TR12-1 come with a warranty?
Absolutely. The Altronix TR12-1 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Altronix TR12-1?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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