1L-MSM-112 Surface Mount Magnetic Reed Switch
Datasheet & Application Guide:
The 1L-MSM-112 Surface Mount Magnetic Reed Switch from 1 LEAP Technologies is an accurate-engineered magnetic sensing solution designed for dependable, non-contact switching in security, automation, and access-control systems. This model is specifically developed for surface-mounted installations where consistent magnetic actuation, mechanical durability, and long operational life are needed. Unlike miniature or PCB-level reed switches used in electronic devices, the 1L-MSM-112 is customized for physical mounting on doors, panels, enclosures, and industrial structures, making it ideal for field installations and wired sensing applications.
Product Overview 1L-MSM-112 Reed Switch:
The 1L-MSM-112 is a surface mount reed switch that operates through magnetic activation. When the supplied magnet approaches the switch body, the internal reed contacts change their electrical state depending on the selected configuration. This model is available in Normally Open (NO), Normally Closed (NC), and NO/NC (changeover) variants, allowing system designers to choose the exact switching logic required for their application.
Manufactured by 1 LEAP Technologies, this Magnetic Reed Sensor is housed in a durable ABS enclosure with mounting flanges, making sure the secure installation and long-term reliability in real-world environments such as homes, factories, warehouses, and commercial buildings.
Key Features
- Surface mount design with screw mounting and optional adhesive tape
- Side flanges for quick and secure installation
- 18" long wire leads for suitable wiring
- Operate gap of ¾" (19.0 mm) minimum
- Mounting spacer available on request
Varients of 1L-MSM-112:
1L-MSM-112 NC
Original price was: ₹350.00.₹250.00Current price is: ₹250.00. (+18% GST extra)
1L-MSM-112 NO
Original price was: ₹250.00.₹150.00Current price is: ₹150.00. (+18% GST extra)1L-MSM-112 NO/NC
Original price was: ₹350.00.₹280.00Current price is: ₹280.00. (+18% GST extra)
1L-MSM-112T
Original price was: ₹250.00.₹185.00Current price is: ₹185.00. (+18% GST extra)
1L-MSM-117
Original price was: ₹650.00.₹550.00Current price is: ₹550.00. (+18% GST extra)Varients of 1L-MSM-112:
Switch Type (1L-MSM-112) | NO |
|---|---|
Voltage | 200 VDC |
Current | 0.5 A |
Power | 10 W |
Operating Gap (min.) | 15 |
Dimensions (LxWxH) | 40 x 10 x 10.5 |
Wire Type | PVC |
* Wire Length (std.) | 18" |
Core Size | 14/38 ATC |
Operating Temp. | -20°C to +70°C |
Storage Temp. | -40°C to +85°C |
Humidity | Up to 95% non-condensing |
Housing Material | ABS Plastic |
Mounting Type | Surface Mount - Easy Screw & Adhesive tapes (optional) |
Mechanical Life | Over 10 million cycles |
Contact Resistance | 0.1 Ω |
Colour | White |
Switch Type (1L-MSM-112) | NC |
|---|---|
Voltage | 60 VDC |
Current | 0.25 A |
Power | 4 W |
Operating Gap (min.) | 10 |
Dimensions (LxWxH) | 40 x 10 x 10.5 |
Wire Type | PVC |
* Wire Length (std.) | 18" |
Core Size | 14/38 ATC |
Operating Temp. | -20°C to +70°C |
Storage Temp. | -40°C to +85°C |
Humidity | Up to 95% non-condensing |
Housing Material | ABS Plastic |
Mounting Type | Surface Mount - Easy Screw & Adhesive tapes (optional) |
Mechanical Life | Over 10 million cycles |
Contact Resistance | 115 mΩ |
Colour | White |
Switch Type (1L-MSM-112) | NO/NC |
|---|---|
Voltage | 60 VDC |
Current | 0.25 A |
Power | 4 W |
Operating Gap (min.) | 10 |
Dimensions (LxWxH) | 40 x 10 x 10.5 |
Wire Type | PVC |
* Wire Length (std.) | 18" |
Core Size | 7/38 3 Core AWM |
Operating Temp. | -20°C to +70°C |
Storage Temp. | -40°C to +85°C |
Humidity | Up to 95% non-condensing |
Housing Material | ABS Plastic |
Mounting Type | Surface Mount - Easy Screw & Adhesive tapes (optional) |
Mechanical Life | Over 10 million cycles |
Contact Resistance | 115 mΩ |
Colour | White |
Applications
The 1L-MSM-112 is ideal for:
- The Security systems
- Door and window monitoring
- Industrial automation
- Access control devices
OEM equipment Requires Magnetic Reed Sensor integration
Its durable construction, stainless steel armor, and ABS housing, the switch performs reliably in demanding environments with repeated mechanical movement, vibration, or temperature fluctuations.
Available Contact Configurations of 1L-MSM-112
The 1L-MSM-112 model is provided in multiple electrical contact types to fit the different system requirements.
The Normally Open reed switch (NO) version remains open when the magnet is away and closes when the magnet comes close. This configuration is hugely used where a signal is required only upon door or panel closure.
The Normally Closed reed switch (NC) version stays closed in the absence of a magnetic field and opens when the magnet is applied. This makes it suitable for fail-safe security systems where circuit interruption specify an event.
The NO/NC (SPDT – Single Pull Double Throw) version provides both normally open and normally closed outputs within a single unit, providing greater flexibility for advanced control logic and monitoring systems. Additionally, the 1L-MSM-112T terminal version is available for installations that require screw terminals instead of lead wires.
Design and Construction
The 1L-MSM-112 surface mount magnetic reed switch is designed strong rectangular housing that allows easy mounting on flat surfaces. The enclosure is manufactured from high-quality plastic material that protects the internal reed contacts from dust, humidity, and mechanical stress.
Each unit includes pre-drilled mounting holes on both ends of the body, allowing firm screw mounting. Flexible insulated lead wires provide easy electrical connection to alarm panels, PLC inputs, controllers, or monitoring circuits. The paired magnet is designed to align exactly with the switch body, making sure the stable switching performance over repeated operations.
Electrical and Mechanical Performance
The 1L-MSM-112 provides stable electrical characteristics suitable for low-voltage and low-current signaling applications. Depending on the selected variant, the switch supports appropriate voltage and current ratings for security and automation systems. The internal reed contacts are sealed and magnetically activated, resulting in minimal contact wear and a long mechanical life that increases millions of operations.
This surface mount reed switch operates reliably within a huge temperature range, making it suitable for indoor and semi-outdoor environments. Its resistance to vibration and mechanical shock further increases its suitability for industrial and building automation installations.
Applications of 1L-MSM-112 Surface Mount Magnetic Reed Switch
The 1L-MSM-112 Magnetic Reed Sensor is specifically designed for applications where physical position detection or access monitoring is required. It is not intended for laptops, compact electronic devices, or PCB-mounted circuits, but for fixed installations where mechanical mounting and wired connectivity are needed.
In security and alarm systems, the 1L-MSM-112 is hugely used for door and window monitoring. When installed on entry points, it accurately detects opening and closing actions, triggering alarms or notifications through connected control panels.
In industrial automation, this reed switch is used to sense the position of machine guards, sliding panels, access doors, and conveyor gates. It provides reliable feedback to PLCs and control units, makes sure an operational safety and process control.
In building automation systems, the switch is used for monitoring service doors, equipment enclosures, and restricted access areas. Its non-contact operation makes it suitable for locations where mechanical limit switches may fail due to dust or wear.
The NO/NC SPDT version is particularly useful in systems requiring dual-state monitoring or redundancy, while the normally closed reed switch version is preferred in fail-safe installations.
Installation and Mounting Guidelines
Installing the 1L-MSM-112 surface mount reed switch is straightforward and does not require special tools. The switch body is mounted on the fixed surface, while the magnet is mounted on the moving part such as a door or panel. Proper alignment between the switch and magnet is important to making sure the correct activation distance and reliable operation.
Once mounted, the lead wires are connected to the control circuit according to the selected contact configuration. After installation, functional testing should be performed to confirm correct switching behaviour when the magnet approaches and moves away from the switch.
Why Choose 1L-MSM-112 from 1 LEAP Technologies
The 1L-MSM-112 stands out due to its application-specific design, durable construction, and availability in multiple contact configurations. 1 LEAP Technologies manufactures this reed switch with a focus on consistency, quality, and long-term performance, making it a trusted choice for system integrators and OEMs.
Whether you are looking to buy reed switch solutions for security systems, industrial control panels, or building automation projects, the 1L-MSM-112 surface mount magnetic reed switch provides a reliable and cost-effective solution backed by professional manufacturing standards.
Frequently Asked Questions (FAQs)
Can the 1L-MSM-112 detect very small magnet movements or low magnetic fields?
Absolutely. This model is made with a high-sensitivity magnetic reed element that responds even to low magnetic field changes, allowing accurate detection of micro-movements. That’s why it’s used in applications like miniature enclosures, PCB-level triggers, and compact security devices where even slight motion needs to be detected accurately.
Can the 1L-MSM-112 reed switch improve the accuracy of compact security devices like smart door/window sensors?
Yes. The 1L-MSM-112 is specially designed for high-accuracy detection in compact security devices. Its small SMD form factor, quick response time, and accurate open–close sensing make it ideal for today’s smart home sensors, anti-tamper modules, and miniature alarm systems. It delivers consistent performance even in tight enclosures where standard switches fails.
