Detex MS-2049S Heavy Duty Form...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$198.14
Detex MS-2049S Heavy Duty Form C Surface Mounted Magnetic Switch with Tamper Protection

Detex MS-2049S Heavy Duty Form C Surface Mounted Magnetic Switch with Tamper Protection

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Model: MS-2049S

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

$198.14
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Detex MS-2049S Heavy Duty Form C Surface Mounted Magnetic Switch with Tamper Protection

Professional Door and Window Surveillance Solution

The Detex MS-2049S Heavy Duty Form C Surface Mounted Magnetic Switch provides reliable sensing for door and window monitoring applications. This commercial-grade magnetic switch features tamper protection with mounting screws inaccessible when the door is closed, potted components for shock and moisture protection, and is rated for over one million operations under load for demanding surveillance applications.

Professional Features & Benefits

  • Heavy-Duty Durability: Switch rated for over one million operations under load for long-term reliability in high-traffic commercial applications.
  • Tamper-Resistant Design: Mounting screws become inaccessible when door is closed, preventing unauthorized removal or tampering.
  • Environmental Protection: Components potted to protect against shock and moisture for reliable operation in various conditions.
  • False Signal Reduction: Minimizes false signals due to loosely closed doors, ensuring accurate surveillance monitoring.
  • Versatile Alarm Integration: Serves as trigger for wall-mounted Detex Exit Alarms and compatible with various audio and visual alarm systems.
  • Form C Configuration: Heavy duty Form C contact arrangement provides flexible switching options for diverse applications.
  • Surveillance Assurance: Provides continuous monitoring to ensure protected doors remain under surveillance at all times.

Technical Specifications

  • Commercial/Residential: Commercial
  • Electronic: Yes
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Model: MS-2049S
  • Product Subgroup: Sensors, Switches, Relays and Timers
  • Product Type: Magnetic Switches
  • Series: MS-2000 Series
  • Subcategory: Magnetic Switch

Installation & Operation

  1. Verify electrical requirements match available power supply and confirm current capacity before proceeding with installation.
  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
  • Retail Loss Prevention
  • Healthcare Facility Access Control
  • Educational Institution Safety Systems
  • Industrial Facility Monitoring
  • Emergency Exit Compliance
  • Government and Municipal Buildings

Tamper-Resistant Design

The MS-2049S features advanced tamper protection with mounting screws that become inaccessible when the door is closed, preventing unauthorized removal or tampering attempts. This design ensures continuous security monitoring integrity in commercial surveillance applications.

Why Choose Detex Quality?

Detex MS-2000 Series magnetic switches deliver professional-grade reliability with potted components and heavy-duty construction rated for over one million operations under load. The tamper-resistant design and environmental protection ensure dependable performance in demanding commercial applications where continuous surveillance monitoring is essential.



Installation Instruction (MS-2049F)
Installation Instruction (MS-2049S)
Installation Instruction (MS-2049SC
Installation Instruction (MS-2049SI)

Product Specs

Series:
MS-2000 Series
Product Group:
Electronic Access Controls
Product Subgroup:
Sensors, Switches, Relays and Timers
Product Type:
Magnetic Switches
Subcategory:
Magnetic Switch
Commercial/Residential:
Commercial
Electronic:
Yes
Product Model:
MS-2049S
Product Category:
Electronic Access Controls
Department:
Door Hardware

Detex MS-2049S – Frequently Asked Questions

1) What does Form C mean on the Detex MS-2049S magnetic switch, and can I use it for both normally open and normally closed wiring?
Form C means the MS-2049S carries a single-pole double-throw contact set, so one switch gives you both a normally open and a normally closed circuit off a common terminal. Wire whichever side your panel or alarm expects, or use both for supervised monitoring. Follow the Detex wiring diagram in the MS-2049S installation instructions when terminating.
2) Is the MS-2049S surface mounted or does it need to be mortised into the door and frame?
Surface mounted. The MS-2049S switch housing and magnet mount on the face of the frame and door, so there is no drilling or routing of a concealed pocket. If you need a concealed switch that hides inside the frame, this is not the model to specify.
3) Can someone unscrew this door contact from the outside once it is installed?
No. The MS-2049S mounting screws sit where they are inaccessible with the door closed, so the unit cannot be removed or defeated while the opening is secured. That is the main reason it gets specified for retail loss prevention and emergency exit doors over a basic surface contact.
4) Will the MS-2049S hold up on a high traffic exterior door?
It is built for that duty. The switch is rated for over one million operations under load, and the internal components are potted to resist shock and moisture, which is what matters on an exterior or dock door that gets slammed and sees weather. It is a commercial-grade device, not a residential contact.
5) Our doors sag and don't always close tight, and we keep getting false alarms. Will this switch help?
That is the specific problem the MS-2049S is built to reduce. Its sensing is set up to minimize false signals from loosely closed doors, so a door that rests slightly off the stop is less likely to drop the circuit and trip the panel. If the gap is severe, correct the closer and alignment first, then set the magnet spacing per the Detex installation instructions.
6) Can I use the MS-2049S to trigger a Detex exit alarm rather than a full alarm panel?
Yes. The switch is used as the trigger for wall-mounted Detex Exit Alarms, and it also ties into other audio and visual alarm devices. So it works either as a door position input to a monitoring panel or as the initiating contact for a standalone local alarm on a rear exit or stockroom door.
7) What is the difference between the MS-2049S and the other MS-2049 versions?
The MS-2049S is the surface mounted Form C switch in the Detex MS-2000 Series. Detex publishes separate installation instructions for the MS-2049F, MS-2049SC and MS-2049SI variants of the same family, and those sheets are the place to confirm which configuration matches your opening before you order. If you already have one of those installed and are replacing it, match the exact suffix rather than assuming the S drops into the same prep.
8) Does the MS-2049S need its own power supply?
No separate supply is required for the contact itself. It is a switch, not a powered device, so it simply opens and closes the circuit your panel or Detex exit alarm supplies. What you do have to confirm is that the voltage and current your system puts across the contacts stays within the ratings on the Detex MS-2049S installation sheet before you energize it.
9) Can this magnetic switch be used on windows as well as doors?
Yes. The MS-2049S is used for door and window monitoring, since a surface mounted magnetic contact only needs a moving leaf and a fixed frame with the magnet and switch aligned. On windows, confirm the sash gives you the same closed-position alignment the Detex instruction sheet calls for.
How fast can I get the Detex MS-2049S 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 MS-2049S come with a warranty?
Absolutely. The Detex MS-2049S 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 MS-2049S?
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 MS-2049S 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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