Why Choose the ABB 1SFA611621R1045 MLBL-04W LED Block?
The ABB 1SFA611621R1045 is a compact and reliable modular LED lamp block designed for use with ABB pilot devices, pushbuttons and selector switches in industrial control and signalling applications. As part of the ABB Modular Plastic series, it provides clear white illumination and dependable status indication for modern control panels and automation systems.
This LED block combines efficient LED technology with a robust modular design, allowing straightforward installation and integration into ABB operator control devices. Its front mounting configuration and compact construction make it suitable for a wide range of industrial machine and electrical panel applications.
With a rated operating voltage of 110–130 V AC and integrated white LED illumination, the ABB 1SFA611621R1045 MLBL-04W provides reliable visual indication for control circuits, machinery and automation equipment where clear operator feedback is required.
Key Advantages
Compact LED lamp block for ABB modular pilot devices.
White LED illumination for clear status indication.
110–130 V AC operating voltage suitable for industrial control systems.
Compatible with ABB pushbuttons, selector switches and pilot light assemblies.
Front mounting design simplifies installation and maintenance.
Reliable LED technology provides efficient and long-lasting indication.
Key Features
ABB Modular Plastic series accessory.
Model: MLBL-04W.
Integrated white LED illumination.
Rated voltage: 110–130 V AC.
LED and lamp block accessory type.
Designed for ABB 22 mm pilot devices.
Front mounting configuration.
Suitable for industrial signalling and operator control applications.
Reliable Signalling for Industrial Control Systems
LED lamp blocks such as the ABB MLBL-04W provide operators with immediate visual feedback from machinery and control systems. Clear illuminated indication helps improve operational awareness and supports efficient monitoring of industrial processes.
The ABB Modular Plastic range is designed for flexible configuration of industrial control stations. Its modular construction enables easy combination with ABB pushbuttons, selector switches and pilot devices to create customised operator interfaces.
Typical Applications
Industrial control panels and switchboards.
Machine automation systems.
Operator control stations.
Factory production equipment.
Process control and signalling applications.
OEM machinery and electrical assemblies.
Technical Specifications
Manufacturer
ABB
Series
Modular Plastic
Model
MLBL-04W
Product type
LED lamp block
Accessory type
LED and lamp blocks
Illumination
Illuminated
Light colour
White
Rated voltage
110–130 V AC
Mounting type
Front mounting
Application
ABB pilot devices and operator control products
Protection rating
IP20
Frequently Asked Questions
What is the ABB 1SFA611621R1045 used for?
This LED block provides illuminated indication for ABB pilot devices, pushbuttons and selector switches used in industrial control applications.
What is the operating voltage of this LED block?
The ABB 1SFA611621R1045 operates at a rated voltage of 110–130 V AC.
What colour illumination does this product provide?
The MLBL-04W provides white LED illumination for clear visual signalling.
Which ABB devices is this LED block compatible with?
The LED block is designed for use with compatible ABB modular pilot devices, pushbuttons and selector switches.
Where is this LED block typically installed?
The product is typically installed in industrial control panels, operator stations and automation equipment.
Trusted by Industrial Control Engineers Worldwide
ABB modular LED blocks are widely used by automation engineers and machine builders to provide dependable visual indication and flexible control panel solutions for industrial equipment.
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Manufacturer
ABB
Series
Modular Plastic
Model
MLBL-04W
Product type
LED lamp block
Accessory type
LED and lamp blocks
Illumination
Illuminated
Light colour
White
Rated voltage
110–130 V AC
Mounting type
Front mounting
Application
ABB pilot devices and operator control products
Protection rating
IP20
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
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Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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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...