EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY
Why Choose the EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY? The EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY (L51K25LUM321) is a purpose-built solution for demanding industrial environments. It delivers long-term reliability, is easy to install, and supports a wide range of automation or safety applications. Key Takeaways Heavy-duty industrial construction Simple, secure installation Frequently Asked Questions About the EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY What is the rated voltage? What is the current rating? What is the power rating? What are the typical applications? Does it meet industry certifications? Speed & Safety Benefits Quick installation: Designed for fast, hassle-free integration into control panels Reliable operation: Engineered for continuous use in demanding applications Certified safe: Meets or exceeds CE and RoHS requirements Key Features of the EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY Industrial-grade reliability Manufactured by a leading brand Meets CE and RoHS standards EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY Overview Refer to datasheet for detailed product overview. Choose the EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY (L51K25LUM321) for reliability, compliance, and robust performance in every industrial application. Frequently Asked Questions What is the rated voltage? See product datasheet. What is the current rating? See product datasheet. What is the power rating? See product datasheet. What are the typical applications? Ideal for industrial automation, panels, and control systems. Does it meet industry certifications? Yes, this product is CE and RoHS compliant. Refer to datasheet for more information.
Price
List Priceex VAT
Your Price
On backorderPlease contact us for a delivery time before you order
Get the best trade pricesTrade exclusive
Create a trade account to unlock exclusive pricing, special offers and more.
EMAS L51K25LUM321 Limit Switch – L51 Metal Body Metal Right Angle Key Safety Switch Slow Action 1NO+2NC
The EMAS L51K25LUM321 is a heavy-duty industrial safety limit switch from the EMAS L51 Metal Body series, designed for machine safety monitoring, protective guard interlocking, and industrial automation applications. Featuring a rugged metal body and cover, metal right angle key safety actuator, slow action switching mechanism, and 1NO + 2NC contact configuration, this limit switch provides dependable safety switching performance in demanding industrial environments.
Built for reliable industrial operation, the EMAS L51K25LUM321 offers long mechanical durability with a minimum mechanical life of 10 million operations and is designed for use in safety circuits requiring multiple normally closed contacts. With IP65 protection, AC15 utilization category, and compliance with industrial switching standards, it is suitable for machinery protection and automation systems.
EMAS L51K25LUM321 Product Features
Manufacturer: EMAS
Series: L51 Metal Body Limit Switch
Product Type: Safety Limit Switch
Actuator Type: Metal Right Angle Key Safety Switch
Actuator Material: Metal
Contact Configuration: 1NO + 2NC
Contact Action: Slow Action
Rated Current: 3A at 240V AC
Usage Category: AC15
Mechanical Life: Minimum 10,000,000 operations
Electrical Life: Minimum 1,000,000 operations
Protection Rating: IP65
Operating Temperature: -25°C to +80°C
Standards: TS EN 60947-5-1, UL 508, VDE 0660
Technical Specifications
Specification
Value
Brand
EMAS
Model
L51K25LUM321
Series
L51 Metal Body
Housing Material
Metal Body and Cover
Actuator Material
Metal
Actuator Type
Right Angle Key Safety Switch
Contact Type
1NO + 2NC
Switching Type
Slow Action
Rated Current
3A (240V AC)
Usage Category
AC15
Protection Degree
IP65
Contact Material
AgNi
Cable Entry
PG13.5 or M20x1.5 compatible
Applications
The EMAS L51K25LUM321 safety limit switch is commonly used for:
Machine safety door monitoring
Safety interlock systems
Industrial automation equipment
Production line protection
Machinery guarding systems
Industrial control circuits
Why Choose EMAS L51K25LUM321?
The EMAS L51K25LUM321 combines rugged metal construction with a reliable right angle key safety actuator and a 1NO+2NC slow action contact arrangement. Its durable design, IP65 protection, and long operating life make it a suitable solution for industrial safety applications requiring dependable guard monitoring and machine protection.
Frequently Asked Questions
What type of actuator does the EMAS L51K25LUM321 use?
The EMAS L51K25LUM321 uses a metal right angle key safety switch actuator designed for industrial safety applications.
What contact configuration does the EMAS L51K25LUM321 have?
The EMAS L51K25LUM321 features slow action switching with 1NO + 2NC contacts.
What protection rating does the EMAS L51K25LUM321 provide?
The EMAS L51K25LUM321 provides IP65 protection for reliable operation in industrial environments.
{
"@context": "https://schema.org/",
"@type": "Product",
"name": "EMAS L51K25LUM321 Limit Switch",
"brand": {
"@type": "Brand",
"name": "EMAS"
},
"mpn": "L51K25LUM321",
"description": "EMAS L51K25LUM321 L51 Metal Body Metal Right Angle Key Safety Switch Slow Action 1NO+2NC Limit Switch.",
"category": "Industrial Safety Limit Switch"
}
{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "What type of actuator does the EMAS L51K25LUM321 use?",
"acceptedAnswer": {
"@type": "Answer",
"text": "The EMAS L51K25LUM321 uses a metal right angle key safety switch actuator."
}
},
{
"@type": "Question",
"name": "What contact configuration does the EMAS L51K25LUM321 have?",
"acceptedAnswer": {
"@type": "Answer",
"text": "The EMAS L51K25LUM321 features slow action 1NO + 2NC contacts."
}
},
{
"@type": "Question",
"name": "What applications is the EMAS L51K25LUM321 suitable for?",
"acceptedAnswer": {
"@type": "Answer",
"text": "The EMAS L51K25LUM321 is suitable for machine safety, industrial automation, safety interlocks, and machinery protection applications."
}
}
]
}
No specifications available for this product.
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
Trusted Manfacturers
● 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.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
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...