KBA1L21 – TOP PLUNGER PLASTIC POSITION SWITCH 2NO+
Lovato Electric KBA1L21 electrical installation component for professional commercial and industrial assemblies, suitable for maintenance, replacement and panel building applications.
SKU:KBA1L21MPN:KBA1L21
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Why Choose the Lovato Electric KBA1L21 Limit Switch?
The Lovato Electric KBA1L21 is a compact and reliable industrial limit switch designed for precise position detection, machine control and automation applications. Part of the Lovato K series limit switch range, it provides dependable mechanical switching performance for industrial machinery, control systems and OEM equipment.
Featuring a top push rod plunger actuator, polymer thermoplastic housing and aluminium-zinc alloy metal plunger, the KBA1L21 delivers accurate operation and excellent durability in demanding industrial environments. Its compact EN 50047 compliant design enables easy installation and integration into a wide range of automation systems.
The KBA1L21 limit switch includes 2NO + 1NC slow action contacts and an M20 bottom cable entry, providing flexible switching options for industrial control circuits. With a 10 A thermal current rating and IP65 body protection, it is suitable for reliable position monitoring in machinery and automation applications.
Key Advantages
Reliable Lovato K series limit switch for industrial automation.
Top push rod plunger design for accurate mechanical position sensing.
2NO + 1NC slow action contacts for versatile control circuit integration.
Strong polymer thermoplastic housing for industrial environments.
Metal plunger actuator provides dependable mechanical operation.
IP65 protection rating helps protect against dust and water ingress.
Key Features
Lovato Electric K series limit switch.
Model: KBA1L21.
Top push rod plunger actuator.
2NO + 1NC slow action contacts.
M20 bottom cable entry.
Polymer thermoplastic housing.
Aluminium-zinc alloy metal plunger.
Designed to EN 50047 dimensions.
Suitable for industrial automation and machine control applications.
Reliable Position Detection for Industrial Automation
Industrial limit switches such as the Lovato Electric KBA1L21 provide accurate mechanical feedback by detecting movement, travel limits and machine component positions. They are widely used in automated equipment to control sequences, improve operational reliability and support machine safety functions.
The KBA1L21 combines robust materials, flexible contact configuration and compact dimensions, making it suitable for integration into production machinery, electrical control panels and industrial automation systems.
Typical Applications
Industrial machinery and automation equipment.
Machine position monitoring systems.
Conveyor and material handling systems.
Packaging and production machinery.
Control panels and electrical assemblies.
OEM machine building applications.
Technical Specifications
Weight [g]
73
Qty. per package
1
Multiple qty. of packs per order
1
Package dimensions [mm]
100X044X032
Volume [cm³]
140.8
Bar code [EAN13]
8013975113554
Product designation
Top push rod plunger
Product type designation
KBA
Housing
Polymer thermoplastic
Rod
Aluminium-zinc alloy
Type of contact
2NO+1NC Slow action
Thermal current Ith
10
IEC/EN 60947-5-1 designation
A600 Q600
Rated insulation voltage Ui [V]
690
Rated impulse withstand voltage Uimp
6
Insulation class
II
Short-circuit protection with fuse
10 gG/SC QUICK FUSE
min
16
max
14
IEC Conventional free air thermal current Ith
10
Resistance per pole (average value)
<10
Operating head fixing
Locking bayonet insert
min [mm²]
1.5
max [mm²]
2.5
Cable connection
Self-releasing screw terminal
Cable entry
M20 on the bottom
Mechanical life
<10000000
Mechanical operation
3600
min [°C]
-40
max [°C]
+70
Terminals
IP20
Body housing
IP65
Pollution degree
3
ETIM 8.0
EC000030 - End switch
HS Code
85365080
Frequently Asked Questions
What is the Lovato Electric KBA1L21 used for?
The KBA1L21 is an industrial limit switch used for detecting the position and movement of machine components in automation and control applications.
What type of actuator does the KBA1L21 have?
The KBA1L21 features a top push rod plunger actuator with a metal plunger for reliable mechanical switching operation.
What contact configuration does the KBA1L21 provide?
The Lovato KBA1L21 provides 2 normally open and 1 normally closed slow action contacts for flexible industrial control applications.
What cable connection does the KBA1L21 use?
The KBA1L21 uses an M20 bottom cable entry for straightforward electrical installation.
Where is the KBA1L21 typically installed?
The KBA1L21 is typically installed on industrial machinery, automation equipment and electrical control systems requiring reliable position detection.
Trusted for Industrial Control Applications
Lovato Electric K series limit switches provide reliable mechanical switching, accurate position detection and durable performance for modern industrial automation systems.
Weight [g]
73
Qty. per package
1
Multiple qty. of packs per order
1
Package dimensions [mm]
100X044X032
Volume [cm³]
140.8
Bar code [EAN13]
8013975113554
Product designation
Top push rod plunger
Product type designation
KBA
Housing
Polymer thermoplastic
Rod
Aluminium-zinc alloy
Type of contact
2NO+1NC Slow action
Thermal current Ith
10
IEC/EN 60947-5-1 designation
A600 Q600
Rated insulation voltage Ui [V]
690
Rated impulse withstand voltage Uimp
6
Insulation class
II
Short-circuit protection with fuse
10 gG/SC QUICK FUSE
min
16
max
14
IEC Conventional free air thermal current Ith
10
Resistance per pole (average value)
<10
Operating head fixing
Locking bayonet insert
min [mm²]
1.5
max [mm²]
2.5
Cable connection
Self-releasing screw terminal
Cable entry
M20 on the bottom
Mechanical life
<10000000
Mechanical operation
3600
min [°C]
-40
max [°C]
+70
Terminals
IP20
Body housing
IP65
Pollution degree
3
ETIM 8.0
EC000030 - End switch
HS Code
85365080
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.
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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...