Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971

MS-328 Flat Pack Reed Sensors with Actuator

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Features

10W Contact Rating. Normally 30W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Contact. Higher Shock Limits. Easy Screw Mounting.

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Benefits

Omni-polar. Does not require power for operation. RoHS Compliant. Not ESD Sensitive. Various Cables and Connectors Available. Actuator with same Housing available.

Description

This MS-328 screw mountable sensor can be mounted with M3 screws and can switch loads of up to 30W. It is particularly useful in industrial applications where distance adjustments need to be made every now and then. Various activating distances are available depending on the magnet and the AT band used. This sensor can be supplied with non-standard connectors on request. All sensors are tested 100% for Operate AT, Release AT, Static Contact Resistance and Variable Contact Resistance before packing. Being an omni-polar device, this sensor can be actuated with either a north pole or a south pole or both. Choosing the right AT band, magnet strength, and operating axis, will restrict the number of operates and releases to one.

Cylindrical and Rectangular Magnets

Standard magnets-RRE Drawing of Cylindrical MagnetsDrawing of Rectangular Bar Magnets starFeaturesNdFeB High Energy. Nickel coated. Energized Continue reading ->

Nov 18, 2020

Actuation Distances for MS-328 Flat Pack Sensor

MS-324 magnet actuation Operate and release distances for the MS-328 standard size Flat pack sensor in the three standard AT bands when actuated (as shown in the Continue reading ->

Oct 30, 2020

Electrical

Contact FormA
Contact Rating (max)W/VA30.0
Switching Current (max)A0.5
Carry Current (max)A2.50
DC Switching Voltage (max)VDC230
Breakdown Voltage (min)VDC350
Contact Resistance (max)150
Insulation Resistance (min)Ω109
Capacitance (typ)pF0.2

Miscellaneous

Operate Time (max)ms0.35
Bounce Time (max)ms0.30
Release Time (max)ms0.15
Resonance Frequency (typ)Hz>2000
Operating Frequency (max)Hz500
Operating Temperature Range°C-40 to +70
Shock Resistance (½Sin wave for 11ms)G50
Vibration Resistance (10-2000 Hz)G20

Ordering Code

MS-328-(Operate Band Code)-(Cable Length in mm)-(Cable Termination Code)

Operate Band Code
3AT20-25
4AT25-30
5AT30-35
Cable Termination CodeTermination Type
SStripped to 5.0 mm
TStripped and Tinned

Example: MS-328-4-500-T Denotes MS-328 Flat-pack Sensor in 25-30 Operate AT, with 500 mm cable length and Tinned ends.

Other Special Configurations: Lower Static Contact Resistance, Dynamic Contact Resistance Limit, Special Release Limits.

Usage Notes

Here are some of the recommended usage notes to ensure maximum durability of this product. The complete usage notes are available here.

Ampere Turn Selection

Reed Sensor Manufacturer Cross Reference For any application, it is important to select the correct Ampere Turn (AT) or magnetic sensitivity of a Reed Switch, Reed Sensor or Continue reading ->

Aug 27, 2020

Effects of Temperature

Thermal sensor The normal operating temperature range for a reed contact is -40°C to +200°C, but too steep a rise or drop in temperature may Continue reading ->

Aug 27, 2020

Product Handling

Dropping Reed switch Reed Switch Handling Reed Switches, Reed Sensor and Magnet Sensors are sensitive devices that easily develop micro cracks in the glass Continue reading ->

Aug 31, 2020

Ferro-magnetic parts

Ferromagnetic parts Reed Switches use an alloy of Nickel and Iron with a few other elements that make the alloy Ferro-magnetic and having a low Remanence. Continue reading ->

Sep 4, 2019

Cable Handling

Twisting cables nearer to housing Magnet Sensor Cable Handling When using Reed Switches soldered to cables, or when using off the shelf Magnet Sensors with cables, some Continue reading ->

Sep 4, 2019

Reed Contact Protection Circuits

Inductive Load Protection Circuit It is assumed that the ideal reed switch load is a Resistive Load, but it is almost impossible to reduce any load to purely resistive. Continue reading ->

Aug 31, 2020

Applications

Although we can never restrict the use of a reed sensor to a particular field, the following is a list of some of the applications that the MS-328 Magnet Sensor is known to perform well.

Magnet Sensors for Securing Fire safety and Emergency Exits

fire safety exit Emergency Exit Building codes provide standards for the safety, welfare and general health of the personnel occupying the buildings. Continue reading ->

Nov 7, 2020

Reed Sensors to Prevent Thievery in Cargo Containers

cargo container Containerized Cargo Cargo theft is an international problem and hundreds of millions of dollars of goods are lost due to pilferage and Continue reading ->

Nov 7, 2020

Magnet sensors in Welding Equipment

proximity sensors in welding machine Welding Equipment Welding machine power supplies are classified as either Constant Current or as Constant Voltage types. In Constant Continue reading ->

Nov 7, 2020

Reed switches in Floor detection in Elevators and Lifts

Reed switches in floor detection in lifts Elevator Most people are aware of Elevators, or lifts, as they are called in certain areas of the world. The electrical motors in Continue reading ->

Nov 7, 2020

Magnet Sensors for Door and window Security

Reed switches in window security Door/Window Security Home and Workspace security is paramount and most newly constructed spaces integrate security products during Continue reading ->

Nov 6, 2020

Reed sensors in Rowing Electronics

Reed switches in rowing electronics Row Boat Rowing electronics are useful for tracking rowing information, both in actual competitive rowing as well as in rowing machines Continue reading ->

Nov 7, 2020

Accidental airbag deployment prevention

Reed switches in airbag deployment Airbag deployment The airbag module is designed to inflate extremely rapidly then quickly deflate during a collision or a rapid sudden Continue reading ->

Nov 7, 2020

Reed switches for Door sensing on Copiers and Scanners

scanner Paper Scanner A Paper Scanner or just scanner for short, is a device that uses an optical head to scan images or printed documents. The Continue reading ->

Nov 6, 2020

MS-328 Flat Pack Reed Sensors with Actuator
MS-328 Flat Pack Reed Sensors: 8 mm slots for screw mounting, 60W line voltage, omnipolar, complete data sheet and technical specifications.
Brand: RRE
Manufacturer: Reed Relays and Electronics
Model: MS-328
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