1SFA611621R2043 ABB MLBL-04BY Yellow LED Lamp Block 110–130 V AC

1SFA611621R2043 ABB MLBL-04BY Yellow LED Lamp Block 110–130 V AC

ABB MLBL-04BY is a yellow integrated LED lamp block rated for 110–130 V AC and designed for visual status indication in compatible industrial pilot device and control applications.

SKU: 1SFA611621R2043Alt SKU: MLBL-04BYMPN: 1SFA611621R2043
Price
List Price £16.07 ex VAT
Your Price (ex VAT)
£16.07
Manufacturer Lead Time Estimated Delivery 5 weeks
Get the best trade prices Trade exclusive

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

SUBTOTAL (EX VAT) £16.07
Trade pricing is personalised to your account

Manufacturer Lead Time

£16.07

Why Choose the ABB MLBL-04BY Lamp Block?

The ABB MLBL-04BY is a compact yellow LED lamp block designed for illuminated indication within ABB pilot device and control-station assemblies. Part of ABB's modular pilot device range, it provides a dependable visual signalling solution for industrial control panels, machinery and operator interfaces.

The MLBL-04BY incorporates an integrated yellow LED and is designed for a 110–130 V AC rated supply. Its rear-mounting configuration makes it suitable for installation in compatible ABB enclosures and on DIN rail arrangements, supporting flexible construction of industrial indication and control systems.

With a rated current of 8.6 mA, a yellow LED wavelength of 588 nm and luminance of approximately 250 mcd, the MLBL-04BY provides clear visual status indication while maintaining the compact modular format associated with ABB pilot devices.

Key Advantages

  • Integrated yellow LED for clear machine and process status indication.
  • 110–130 V AC rated voltage for industrial control applications.
  • Compact modular construction for ABB pilot device assemblies.
  • Designed for rear mounting in compatible control enclosures.
  • Can be used with compatible ABB enclosure and DIN-rail mounting arrangements.
  • Low-power LED technology provides reliable, efficient visual indication.

Key Features

  • ABB MLBL modular lamp block.
  • Yellow integrated LED.
  • 110–130 V AC rated voltage.
  • 8.6 mA rated current.
  • 588 nm LED wavelength.
  • 250 mcd luminance.
  • Rear-mounting configuration for compatible ABB pilot device installations.
  • Compact weight of approximately 0.012 kg.

Reliable Visual Indication for Industrial Control Systems

LED lamp blocks provide illuminated status feedback within industrial operator interfaces, allowing machine operators and maintenance personnel to identify operating conditions quickly. The ABB MLBL-04BY combines an integrated yellow LED with a compact modular design for dependable indication in compatible pilot device installations.

The MLBL range supports flexible construction of industrial control and signalling assemblies. The MLBL-04BY is specifically configured for yellow indication on a 110–130 V AC supply, making it suitable for control panels, machinery enclosures and other applications requiring a clearly visible status signal.

Typical Applications

  • Industrial machinery control panels.
  • Operator control stations and enclosures.
  • Machine status and process indication.
  • Manufacturing and production equipment.
  • Automation and control cabinets.
  • OEM machinery and industrial control systems.

Technical Specifications

Tick the specs you need, then view products that match.

Illumination Illuminated
Product Series ABB Modular
Colour Yellow
Voltage 110–130 V AC
Device Type LED / Lamp Block
Series MLBL / Modular Pilot Devices
ABB order code 1SFA611621R2043
Product type Lamp block / LED block
Light source Integrated LED
LED colour Yellow
Rated voltage 110–130 V AC
Rated current 8.6 mA
LED wavelength 588 nm
Luminance 250 mcd
Mounting Rear mounting
Weight approx. 0.012 kg
ABB product group 312001 – Pilot Devices (Secrl)

Frequently Asked Questions

What is the ABB MLBL-04BY used for?

The MLBL-04BY is an LED lamp block used to provide yellow visual status indication in compatible ABB pilot device, enclosure and industrial control applications.

What colour is the ABB MLBL-04BY LED?

The MLBL-04BY incorporates a yellow LED with a specified wavelength of 588 nm.

What voltage is the ABB MLBL-04BY rated for?

The lamp block is rated for a 110–130 V AC supply.

What is the rated current of the MLBL-04BY?

The ABB MLBL-04BY has a rated current of 8.6 mA.

What is the ABB order code for the MLBL-04BY?

The ABB order code for the MLBL-04BY is 1SFA611621R2043.

Where can the MLBL-04BY be installed?

The MLBL-04BY is designed for rear mounting in compatible ABB pilot device installations and can be used in suitable enclosure and DIN-rail arrangements.

Trusted by Industrial Automation Professionals Worldwide

ABB pilot devices and modular signalling components are used in industrial control and automation applications where dependable operator indication, modular installation and integration with control equipment are required.

● 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…

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

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

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...