MS Sedco 12024 Open Frame 24V ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$25.00
$20.00
MS Sedco MS Sedco 12024 Open Frame 24V AC Transformer MSS-12024

MS Sedco 12024 Open Frame 24V AC Transformer - 120V to 24V Screw Mount Power Converter

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Model: 12024

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

$25.00
$20.00
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MS Sedco 12024 Open Frame 24V AC Transformer – 120V to 24V Screw Mount Power Converter

The MS Sedco 12024 is a screw mount, open frame transformer engineered to convert a 120V AC power supply to 24V AC low voltage, making it an essential component for electronic access control systems and sensor-based applications. Featuring a compact 2-wire design and open frame construction, this transformer is built for straightforward integration into commercial door hardware and access control installations. UL recognized as a component, the 12024 delivers dependable low-voltage power conversion for demanding commercial environments.

Key Features

  • 120V AC to 24V AC Conversion: Converts standard 120V AC input to 24V AC low voltage output, providing the correct power supply for compatible access control devices and sensors.
  • Screw Mount Design: Secure screw mount installation method ensures stable, vibration-resistant mounting in control panels and enclosures.
  • Open Frame Construction: Open frame form factor allows for flexible integration into a variety of control panel configurations and enclosures.
  • 2-Wire Type: Simplified 2-wire connection reduces installation complexity and minimizes wiring errors during setup.
  • UL Recognized Component: Listed as a UL recognized component, confirming compliance with established safety and performance standards for commercial applications.
  • Commercial-Grade Reliability: Designed for use in commercial electronic access control systems, controllers, power supplies, and transformer applications requiring consistent low-voltage output.

Certifications & Compliance

  • UL Recognized Component

Technical Specifications

  • Type: Step-down transformer
  • Input: 120V AC
  • Output: 24V AC
  • Application: Powers MS Sedco door and motion sensor accessories

Typical Applications

  • Commercial Building Access Control Systems
  • Electronic Door Hardware Power Supply
  • Sensor and Detection System Power Conversion
  • Educational Facility Security Installations
  • Healthcare Facility Access Control Infrastructure
  • Industrial and Warehouse Entry Systems
  • Government and Municipal Building Security

Why MS Sedco 12024?

MS Sedco 12024 transformers deliver professional-grade power conversion with a UL recognized open frame design built specifically for commercial electronic access control environments. The screw mount, 2-wire construction simplifies installation while ensuring a secure, reliable connection in high-demand commercial applications where consistent 24V AC low-voltage output is critical to system performance.

Manufacturer Resources

Sensor Accessories Data Sheet

Product Specs

Product Group:
Electronic Access Controls
Product Subgroup:
Controllers, Power Supplies and Transformers
Product Type:
Transformer
Subcategory:
Accessories
Commercial/Residential:
Commercial
Electronic:
Yes
Series:
12024
Product Model:
12024
Product Category:
Electronic Access Controls
Department:
Door Hardware

MS Sedco 12024 – Frequently Asked Questions

1) Will the MS Sedco 12024 transformer power a 24V AC door sensor off a standard 120V circuit?
That is exactly what it does. The 12024 is a step-down transformer taking 120V AC in and putting out 24V AC, and it is intended to power MS Sedco door and motion sensor accessories. If your sensor or access control device calls for 24V AC, this is the right supply. If the device needs DC, this is not the part - a straight AC transformer output won't run a DC-only board without a rectifier.
2) Is the MS Sedco 12024 a plug-in transformer or does it have to be hard wired?
It is an open frame, screw mount unit, not a plug-in. You mount it with screws inside a control panel or enclosure and wire it in, which is why it's built for permanent commercial installs rather than a wall outlet. If you want something you can plug into a receptacle, look at a plug-in type like the Trine 5204 or the DynaLock 5313 instead.
3) I have a 12V maglock - can I use the 12024 transformer on it?
No. The 12024 puts out 24V AC only, so it will overdrive a 12V device. For 12V AC you'd want an open transformer like the DynaLock 5212, which is 120VAC to 12VAC at 2 amps; for 12V DC the DynaLock 5313 plug-in is rated 120VAC to 12VDC at 3 amps. Match the voltage and the current type to the lock's label before you wire anything.
4) Is the MS Sedco 12024 transformer UL listed for a school or hospital install?
The 12024 is a UL Recognized Component, not a standalone UL Listed product. That distinction matters to an inspector: recognized components are evaluated for use inside a larger listed assembly, so it's meant to be installed within the equipment or enclosure it powers. It's a commercial-grade part and gets used in educational, healthcare, government, and warehouse access control work.
5) What is the closest open frame transformer to the MS Sedco 12024 if I need 12V instead of 24V?
The MS Sedco 12024 is an open frame, screw mount step-down transformer that takes 120V AC in and puts out 24V AC. If the device you are powering runs on 12V AC instead, the DynaLock 5212 is the closest match in form: it is an open transformer rated 120VAC to 12VAC at 2 amp. Both are open frame units meant to be mounted inside a control panel or enclosure rather than plugged into a receptacle. Confirm the input voltage stamped on your sensor or controller before choosing - a 24V AC device will not operate correctly on a 12V supply, and vice versa.
6) I do not have a panel to screw a transformer into - what plug-in alternative can I use instead of the MS Sedco 12024?
The 12024 is a screw mount, open frame unit designed to be fastened inside a control panel or enclosure, so it needs a housing and line-voltage connections. If you are working at a door with only a wall receptacle nearby, the Trine 5204 is a plug-in type transformer with a 12V AC output, and the Trine 5205 is a plug-in tri-volt AC transformer that lets you select among its AC output taps. The tradeoff is voltage: the 12024 gives you 24V AC, while the 5204 is 12V AC, so match the plug-in to whatever your device requires.
7) How many wires does the MS Sedco 12024 transformer have and how does it land in a panel?
Two-wire design on the secondary side, which keeps the terminations simple and cuts down on miswiring during setup. Because the frame is open, it drops into most control panel and enclosure layouts, and the screw mount holds it steady where there's vibration. Plan on landing it inside an enclosure - open frame construction means live parts are exposed, so it isn't a surface-mount-anywhere part.
8) My board needs DC but I only have a 24V AC transformer feeding it - what do I add?
You add a rectifier between the transformer's AC output and the DC device. Trine makes the SR-1 silicon rectifier for exactly that job. The 12024 itself is AC out only, so on its own it won't satisfy a DC input. Alternatively, skip the conversion and use a transformer that already outputs DC, such as the DynaLock 5313 at 12VDC, 3 amp.
9) I'm not sure what input voltage my sensor takes - is there a multi-voltage transformer option?
The 12024 is fixed: 120V in, 24V AC out, nothing selectable. If you need flexibility across jobs, the Trine 5205 is a plug-in tri-volt AC transformer, which gives you more than one output tap to pick from. Use the fixed 24V unit when the spec is settled and you're building into a panel.
10) Is the Trine SR-1 a replacement for the MS Sedco 12024?
No - they do different jobs and are often used together rather than in place of one another. The MS Sedco 12024 is a step-down transformer that takes 120V AC line power and produces 24V AC low voltage for access control and sensor devices. The Trine SR-1 is a silicon rectifier, a component that converts an AC output to DC; it does not step line voltage down on its own. If a supplier offered you an SR-1 as a substitute for a transformer, it will not power a 24V AC sensor from a 120V circuit.
11) If I need one transformer that can feed devices at more than one voltage, what should I look at instead of the MS Sedco 12024?
The MS Sedco 12024 is a single-output unit: 120V AC in, 24V AC out, with a simple 2-wire connection that keeps wiring errors down on a dedicated sensor circuit. If you need flexibility across several devices with different AC input requirements, the Trine 5205 is a plug-in tri-volt AC transformer, giving you selectable AC outputs from one unit. The 12024 stays the better fit where the load is fixed at 24V AC and the transformer is being mounted inside a panel by screw rather than plugged in at an outlet.
12) What is the model and series I should quote for the MS Sedco open frame 24V transformer?
Order it as MS Sedco model 12024, series 12024. It's a single-model item with no finish, size, or voltage options to specify, so the model number alone identifies it on a purchase order.
How fast can I get the MS Sedco 12024 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 MS Sedco 12024 come with a warranty?
Absolutely. The MS Sedco 12024 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 MS Sedco 12024?
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 MS Sedco 12024 from ZenSupply?
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