Detex Class II Transformer 120...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$135.00
DETEX - Transformer Class II VAC to 24VAC 75VA

Detex Class II Transformer 120VAC to 24VAC 75VA Power Supply

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Model: 106021

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

$135.00
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Detex Class II Transformer 120VAC to 24VAC 75VA Power Supply

Professional Low-Voltage Power Supply Solution

The Detex Class II Transformer provides reliable 120VAC to 24VAC power conversion with 75VA capacity for commercial access control and security applications. This Class II rated transformer delivers consistent 24VAC output power for electronic door hardware, exit devices, and security system components. Engineered for professional installations requiring dependable low-voltage power distribution.

Professional Features & Benefits

  • Class II Safety Rating: UL Class II construction provides enhanced safety isolation for commercial electrical installations.
  • 75VA Power Capacity: Sufficient power output to support multiple electronic devices and access control components simultaneously.
  • 120VAC to 24VAC Conversion: Standard line voltage input with low-voltage AC output for compatibility with electronic door hardware systems.
  • Commercial-Grade Construction: Designed for reliable operation in demanding commercial and institutional environments.
  • Universal Compatibility: 24VAC output works with most electronic exit devices, strikes, and access control equipment requiring AC power.
  • Professional Installation: Compact design allows flexible mounting in electrical enclosures and control panels.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm voltage 120VAC input and current capacity before proceeding.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including any configurable options per application requirements.
  6. Restore power and test all functions including normal operation, alarm/alert functions, and integration with connected systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Commercial Building Security Systems
  • Electronic Exit Device Power Supply
  • Access Control System Infrastructure
  • Educational Institution Safety Systems
  • Healthcare Facility Access Control
  • Industrial Facility Monitoring
  • Multi-Tenant Residential Security

Why Choose Detex Quality?

Detex transformer products deliver professional-grade reliability with Class II safety construction for demanding commercial applications. Engineered with 75VA capacity to support multiple connected devices while maintaining consistent 24VAC output. Designed for installations where dependable power distribution is essential for security and access control systems.

Manufacturer Resources

Product Specs

Department:
Door Hardware

Detex 106021 – Frequently Asked Questions

1) What input and output voltage does the Detex 106021 transformer run?
The Detex 106021 takes 120VAC line input and puts out 24VAC. It is rated 75VA, so it is sized to feed several low-voltage devices off one transformer rather than a single strike.
2) Will this Detex transformer power a 24VDC electric strike or maglock?
No. The output is 24VAC, not DC. Devices that require DC, like most maglocks and many DC strikes, need a filtered/regulated DC power supply or a rectifier between the transformer and the device. Use the 106021 for hardware that specifically calls for 24VAC.
3) Can I use this transformer to power a Detex alarmed exit device?
Yes, provided the device's listed requirement is 24VAC. The 106021 is intended as the power source for electronic door hardware, exit devices, and access control components that call for AC input. Check the nameplate or spec sheet on your exit device: if it lists a DC voltage, this transformer is the wrong part on its own.
4) Does 75VA give me enough capacity for more than one electrified exit device?
75VA at 24VAC is a shared-load transformer, intended to support multiple electronic devices at once rather than a single unit. Add up the VA draw of every device you intend to connect and keep the total under 75VA, allowing headroom for inrush on electric strikes and latch retraction, which can spike well above the holding current.
5) What does the Class II rating on this transformer mean for my install?
Class II construction means the secondary side is power-limited and isolated, which is why 24VAC Class II wiring can be run with lighter low-voltage cable rather than full line-voltage methods. The 120VAC primary side still has to be wired per electrical code in a proper enclosure.
6) Where do you mount the Detex 106021 transformer?
It is a compact unit meant to go inside an electrical enclosure or control panel. Leave clearance for wiring access, ventilation, and later service, and disconnect the 120VAC feed before you make any connections.
7) Is this transformer suitable for a school or hospital access control system?
Those are its intended environments. The 106021 is built for commercial and institutional use, including educational and healthcare facility access control, multi-tenant residential security, and industrial monitoring, where one 24VAC source feeds the door hardware on a panel.
How fast can I get the Detex 106021 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 Detex 106021 come with a warranty?
Absolutely. The Detex 106021 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 Detex 106021?
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
Why buy the Detex 106021 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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