Call Us Today
01706 242050
Trade Portal
EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY

EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW. SLOW ACTION 2NC+1NO CURVED METAL KEY

Why Choose the EMAS L51K25LUM321 EMAS L51 SERIES LIMIT SW.

SKU: L51K25LUM321MPN: L51K25LUM321
Price
List Price £41.62 ex VAT
Your Price (ex VAT)
£41.62
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Sign up for a trade account Quick & easy setup
SUBTOTAL (EX VAT) £41.62
Trade pricing is personalised to your account

Manufacturer Lead Time

£41.62

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

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.

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
IP Rating IP65
Housing Material Metal
Connection PG13.5 cable entry

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.

● Service Agreements

Credit Accounts

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.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

by | Aug 11, 2026 |

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.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

by | Jan 17, 2026 |

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...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

by | Jan 17, 2026 |

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...