MCS-138-1

Proximity Switch, Magnet & L Bracket, Armoured, NO

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: COMUS / ASSEMTECH
Product type: Reed Proximity Sensors
SVHC: No SVHC (14-Jun-2023)
Sensor Mounting: Panel Mount
Sensing Range Max: 75mm
Sensing Distance Max: 75mm

Delivery and price
Units per pack	100
Price	17.52 €
Current stock	10+
Lead time	30 days

Datasheet

## **Magnetic Contact Switches** 

## **Specification: MCS-138 Series** 

## **Overhead Door Contact** [Lo 

## ***Cast Aluminium casting for harsh enviroments** 

***Wire:#22AWG with 22” armoured cable** 

***Longer leads available** 

***Optional “L” bracket** 

***Resistor, diode and supervisory loop available on request** 

## **Dimensions (mm)** 

## **Order Information** 

|Part<br>Number<br>~~a~~|Loop<br>Type<br>|Reed<br>Form<br>|Closed Gap<br>Inch (mm)<br>|Departure Gap<br>Inch (mm)<br>~~eee~~<br>|Max Initial<br>Contact<br>Resistance<br>(Ohm)<br>~~eee~~<br>|Max Initial<br>Contact<br>rating<br>(W)<br>~~eee~~|Max Switching<br>Voltage<br>(VDC/VAC)<br>~~eee~~|Max<br>Switching<br>Current (A)<br>~~eee~~|
|---|---|---|---|---|---|---|---|---|
|MCS-138-1<br>~~ee~~<br>~~a~~<br>~~a~~|Closed<br>~~ee~~<br>~~ee~~|N/O<br>~~ee~~<br>~~ee~~|2.95(75)<br>~~ee~~<br>~~ee~~|3.18 (80)<br>~~ee~~<br>~~eee~~<br>~~ee~~|0.150<br>~~ee~~<br>~~eee~~<br>~~ee~~|7.5<br>~~ee~~<br>~~eee~~<br>~~eee ee~~|100<br>~~ee~~<br>~~eee~~<br>~~ee~~|0.4<br>~~ee~~<br>~~eee~~<br>~~ee~~~~**e**~~|
|MCS-138-2<br>~~a~~ <br>~~a~~|Closed<br> ~~ee~~<br>~~ee~~|N/O<br>~~ee~~<br>~~ee~~|3½(90)<br>~~ee~~<br>~~ee~~|3.75 (95)<br>~~eee ~~<br>~~ee~~<br>~~ee~~|0.150<br> ~~eee ~~<br>~~ee~~<br>~~ee~~|7.5<br> ~~eee ~~<br>~~eee ee~~<br>~~ee~~|100<br> ~~eee ~~<br>~~ee~~<br>~~e~~|0.4<br> ~~eee~~<br>~~ee~~~~**e**~~<br>~~e~~|
|MCS-138-3<br> <br>~~a~~<br>~~a~~|Open<br> ~~ee ~~<br>~~ee~~|N/C<br> ~~ee~~<br>~~ee~~|2½(65)<br>~~ee ~~<br>~~ee~~|~~ee ~~<br>~~ee~~<br>~~eee~~|0.150<br> ~~ee~~<br>~~ee~~<br>~~ee~~|3<br>~~eee ee~~<br>~~ee~~<br>~~ee~~|30<br>~~ee~~<br>~~e~~<br>~~ee~~|0.2<br>~~ee~~~~**e**~~<br>~~e~~<br>~~ee~~|
|MCS-138-4<br>~~ee~~<br>~~a~~|Closed & Open<br>~~ee~~<br>~~ee~~<br>~~ee~~|SPDT<br>~~ee ~~<br>~~ee~~<br>~~a~~|2½(65)<br> ~~ee ~~<br>~~ee~~<br>~~ee~~|~~ee ~~<br>~~ee~~<br>~~eee~~<br>~~ee~~|0.150<br> ~~ee ~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|3<br> ~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|30<br>~~e~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|0.2<br>~~e~~<br>~~ee~~<br>~~ee~~<br>~~ee~~|
|MCS-138-5<br>~~a~~|DPDT<br>~~ee~~|2SPDT<br>~~a~~|2½(65)<br>~~ee~~|~~eee ~~<br>~~ee~~|0.150<br> ~~ee ~~<br>~~ee~~|3<br> ~~ee~~<br>~~ee~~|30<br>~~ee~~<br>~~ee~~|0.2<br>~~ee~~<br>~~ee~~|



As part of the company policy of continued product improvement, specifications may change without notice.  Our sales office will be pleased to help you with the latest information on this product range and the details of our full design and manufacturing service.  All products are supplied to our standard conditions of sale unless otherwise agreed in writing. 

## **Phone : +44 (0)1255 862236                    www.assemtech.co.uk                    Fax: +44 (0)1255 862014** 

©2010 Copyright Assemtech Europe Ltd, Unit 7, Rice Bridge Industrial Estate, Thorpe - Le - Soken, Essex, CO16 0HL, ENGLAND. USA: + 1 973 777 6900 -  Belgium: + 32 (0)12 390400 - France: + 33 (0) 1 43 96 86 10

Updated at April 16, 2026

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