EMAS B100MS Mushroom Push Button 1NO Yellow 40mm 22mm Control Unit
Product Overview
The EMAS B100MS is a B Series plastic mushroom push button control unit designed for industrial automation, machinery control panels, and operator interface applications. Featuring a yellow 40 mm mushroom actuator, 1NO (Normally Open) contact configuration, spring return operation, and 22 mm mounting diameter, the B100MS provides reliable switching performance for industrial control systems.
Manufactured by EMAS, the B100MS combines durable construction with dependable electrical performance. The large mushroom head design provides improved operator visibility and accessibility, making it suitable for industrial control panels, OEM machinery, and automation systems requiring a robust push button solution.
Key Features
Manufacturer: EMAS
Model: B100MS
B Series Plastic control unit
40 mm mushroom push button actuator
1NO (Normally Open) contact configuration
Spring return operation
Yellow actuator colour
22 mm panel mounting diameter
Rated current: 4A at 250V AC
AC-15 utilisation category
Mechanical life: 500,000 operations minimum
Electrical life: 100,000 operations minimum
IP50 protection rating
Applications
Industrial automation control panels
Machine start and control circuits
OEM machinery interfaces
Electrical control cabinets
Manufacturing equipment
Operator control stations
Why Choose EMAS B100MS?
The EMAS B100MS provides a reliable mushroom-style push button solution for industrial switching applications. Its large 40 mm actuator, durable B Series construction, standard 22 mm mounting format, and dependable 1NO contact arrangement make it suitable for professional automation and control installations.
Technical Specifications
Brand
EMAS
Part Number
B100MS
Product Type
Mushroom Push Button Control Unit
Series
B Series Plastic
Operation Type
Spring Return
Contact Configuration
1NO
Actuator Type
Mushroom Head
Head Diameter
40 mm
Actuator Colour
Yellow
Mounting Diameter
22 mm
Rated Current
4A (250V AC)
Usage Category
AC-15
Mechanical Life
500,000 operations minimum
Electrical Life
100,000 operations minimum
Protection Degree
IP50
Contact Material
AgNi
Standards
IEC 60947-5-1, TS EN 60947-5-1, UL 508, VDE 0660
Frequently Asked Questions
What is the EMAS B100MS?
The EMAS B100MS is a 40 mm mushroom push button control unit featuring a yellow actuator, 1NO contact configuration, spring return operation, and 22 mm mounting size for industrial control applications.
What type of contact does the EMAS B100MS use?
The EMAS B100MS uses a 1NO (Normally Open) contact configuration.
What is the mounting size of the EMAS B100MS?
The B100MS is designed for standard 22 mm panel mounting applications with a 40 mm mushroom actuator head.
Where can the EMAS B100MS be installed?
The B100MS is suitable for industrial control panels, machinery, automation equipment, and OEM electrical systems requiring reliable push button control.
Brand
EMAS
Part Number
B100MS
Product Type
Mushroom Push Button Control Unit
Series
B Series Plastic
Operation Type
Spring Return
Contact Configuration
1NO
Actuator Type
Mushroom Head
Head Diameter
40 mm
Actuator Colour
Yellow
Mounting Diameter
22 mm
Rated Current
4A (250V AC)
Usage Category
AC-15
Mechanical Life
500,000 operations minimum
Electrical Life
100,000 operations minimum
Protection Degree
IP50
Contact Material
AgNi
Standards
IEC 60947-5-1, TS EN 60947-5-1, UL 508, VDE 0660
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...