Why Choose the EMAS MKS1TM-20 Motor Protection Circuit Breaker?
The EMAS MKS1TM-20 is a robust motor protection circuit breaker designed to safeguard three-phase motors against overloads, short circuits and phase failure. Part of the trusted EMAS MKS series, it combines adjustable thermal protection with magnetic short-circuit protection in a compact DIN rail-mounted device suitable for industrial control panels and machinery.
Featuring an adjustable thermal protection range of 16 to 20 A, the MKS1TM-20 can be accurately set to match the connected motor's full load current. The integrated magnetic trip mechanism provides rapid disconnection during fault conditions, helping minimise equipment damage and reduce costly downtime.
Designed for installation on a standard 35 mm DIN rail, this motor protection switch is ideal for OEM machinery, motor control centres, conveyor systems, pumps, compressors and other industrial automation applications. With a 690 V insulation rating and IP40 protection, it delivers dependable long-term performance in demanding environments.
Key Advantages
Adjustable 16 to 20 A thermal overload protection.
Protects motors against overload, short circuit and phase failure.
Compact design for 35 mm DIN rail mounting.
690 V rated insulation voltage.
High mechanical and electrical endurance.
Suitable for industrial motor control and automation systems.
Key Features
EMAS MKS series motor protection circuit breaker.
16 to 20 A adjustable thermal setting.
3-pole construction.
Screw terminal electrical connections.
IP40 protection rating.
Operating temperature from -5 °C to +40 °C.
Mechanical endurance of 100,000 operations.
Electrical endurance of 100,000 operations.
Reliable Motor Protection for Industrial Applications
Motor protection circuit breakers continuously monitor motor current and disconnect the supply when overload or fault conditions occur. This helps prevent overheating, insulation damage and premature motor failure while improving overall system reliability.
The EMAS MKS1TM-20 is well suited to modern industrial control panels where dependable motor protection, compact installation and straightforward commissioning are essential.
Typical Applications
Motor control centres.
Industrial pumps and compressors.
Conveyor systems.
Packaging and processing machinery.
HVAC equipment.
OEM machinery and automation panels.
Technical Specifications
Current
20.00 A
Manufacturer
EMAS
Series
MKS
Model
MKS1TM-20
Product type
Motor protection circuit breaker
Thermal adjustment range
16 to 20 A
Number of poles
3
Rated insulation voltage (Ui)
690 V AC
Protection rating
IP40
Mounting type
35 mm DIN rail
Electrical connection
Screw terminals
Operating temperature
-5 °C to +40 °C
Mechanical endurance
100,000 operations
Electrical endurance
100,000 operations
Weight
Approx. 242 g
Frequently Asked Questions
What is the EMAS MKS1TM-20 used for?
It protects three-phase electric motors against overloads, short circuits and phase failure in industrial applications.
What current range can this breaker be adjusted to?
The thermal overload protection can be adjusted from 16 to 20 A.
How is the MKS1TM-20 mounted?
It is designed for installation on a standard 35 mm DIN rail inside electrical control panels.
What is the insulation voltage?
The breaker has a rated insulation voltage of 690 V AC.
How many poles does the breaker have?
The EMAS MKS1TM-20 is a 3-pole motor protection circuit breaker.
Trusted by Industrial Control Panel Builders
EMAS motor protection circuit breakers are widely used by machinery manufacturers, panel builders and automation engineers to provide dependable motor protection across industrial installations.
Current
20.00 A
Manufacturer
EMAS
Series
MKS
Model
MKS1TM-20
Product type
Motor protection circuit breaker
Thermal adjustment range
16 to 20 A
Number of poles
3
Rated insulation voltage (Ui)
690 V AC
Protection rating
IP40
Mounting type
35 mm DIN rail
Electrical connection
Screw terminals
Operating temperature
-5 °C to +40 °C
Mechanical endurance
100,000 operations
Electrical endurance
100,000 operations
Weight
Approx. 242 g
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
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Same day dispatches
3500 +
Customers supported
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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.
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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...