EMAS B101FY Spring Stay Put Push Button 2NO Green 22mm
The EMAS B101FY is a high-quality 22mm spring stay put push button designed for industrial automation, electrical control panels, and machinery control applications. Featuring a 2NO (Normally Open) contact configuration, green actuator, and maintained stay-put operation, this EMAS B Series control unit provides reliable switching performance and secure control positioning for professional industrial environments.
Manufactured by EMAS, the B101FY combines durable construction, long mechanical life, and dependable electrical performance. Its standard 22mm panel mounting format makes it suitable for operator stations, control cabinets, and industrial equipment requiring maintained pushbutton operation.
Product Features
Manufacturer: EMAS
Product Code: B101FY
22mm panel mounting diameter
Spring stay put maintained push button design
Green actuator colour
Contact configuration: 2NO (Normally Open)
Maintained switching operation
Rated current: 4A at 250V AC
Usage category: AC-15
Mechanical life: minimum 500,000 operations
Electrical life: minimum 100,000 operations
Protection rating: IP50
Contact material: AgNi
Standards: IEC 60947-5-1, TS EN 60947-5-1, UL 508, VDE 0660
Applications
The EMAS B101FY spring stay put push button is suitable for:
Industrial automation control panels
Machine control systems
Electrical cabinets
Production line equipment
Operator control stations
Industrial switching applications
Why Choose EMAS B101FY?
The EMAS B101FY provides dependable maintained switching with a compact industrial design. Its green actuator, 2NO contact arrangement, and spring stay put mechanism make it ideal for applications where the selected control state must remain active until manually changed. The unit is engineered for reliable performance in demanding industrial automation environments.
Technical Specifications
Specification Details Brand
EMAS
Model
B101FY
Product Type
Spring Stay Put Push Button
Operation
Maintained / Stay Put
Contact Configuration
2NO
Actuator Colour
Green
Mounting Diameter
22mm
Rated Current (Ie)
4A (250V AC)
Usage Category
AC-15
Insulation Voltage (Ui)
300V
Impulse Withstand Voltage (Uimp)
2.5kV
Operating Temperature
-15°C to +80°C
Mechanical Life
500,000 operations minimum
Electrical Life
100,000 operations minimum
Protection Degree
IP50
Contact Material
AgNi
Cable Section
1.5-2.5 mm²
Frequently Asked Questions
What type of push button is the EMAS B101FY?
The EMAS B101FY is a spring stay put maintained push button with a green actuator and 2NO contact configuration.
What is the contact configuration of the B101FY?
The EMAS B101FY features two normally open contacts (2NO).
What mounting size is required for installation?
The EMAS B101FY is designed for standard 22mm control panel mounting.
Where can the EMAS B101FY be used?
It is commonly used in industrial automation systems, machinery controls, and electrical panels requiring maintained pushbutton operation.
Specification Details Brand
EMAS
Model
B101FY
Product Type
Spring Stay Put Push Button
Operation
Maintained / Stay Put
Contact Configuration
2NO
Actuator Colour
Green
Mounting Diameter
22mm
Rated Current (Ie)
4A (250V AC)
Usage Category
AC-15
Insulation Voltage (Ui)
300V
Impulse Withstand Voltage (Uimp)
2.5kV
Operating Temperature
-15°C to +80°C
Mechanical Life
500,000 operations minimum
Electrical Life
100,000 operations minimum
Protection Degree
IP50
Contact Material
AgNi
Cable Section
1.5-2.5 mm²
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.
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Support for engineering, maintenance, and operations
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Stock lines ready to ship
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Customers supported
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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...