LV Contactors and Motor Protection Switches

Approvals: UL, CSA
Versions with 3 and 4 main contacts (sp4)
AC or DC coils with low consumption
High contact reliability at low voltage
Degree of protection IP20
Wide range of control voltages is avalible
Wide variety of snap-on auxilary switch blocks and accessories
Mini contactors are used for switching electric motors and other resistive, inductive and capacitive loads, such as:

All kinds of motors
Building automation systems
Applications include use in machines

Contactors are an electrically remote controlled switches used for switching a power circuit. Those contactors are mainly used for switching electric motors, pumps, compressors, systems for energy alternative sources, lamps etc.

Our KNL6 - KNL38 and KNL43-KNL75 contactors are distinguished by:

- high contact reliability,
- high electrical and mechanical endurance,
- high switching capacity,
- a wide range of possible control voltages,
- a wide variety of snap-on auxiliary switch blocks and accessories.

Approvals: UL, CSA (except for KNL18)
Versions with 3 and 4 main contacts (sp4)
High contact reliabillity
High electrical and mechanical endurance
High switching capacity
Wide range of control voltages available
Wide variety of snap-on auxiliary switch blocks and accessories

Installation contactors are the most flexible switching devices for use in all types of applications. Those are applied for automatic control of electric devices in installations of dwellings, offices, shops and hospitals.

They are used for universal switching in offices, shops, hospitals, sports facilities, production halls and in public places for:

All kind of motors
Electric heating
Lights and lightning
Electrical and electronic equipment
Key features:

Approvals: UL, NF
Noise-free operation of AC/DC coil contactors
AC or AC/DC coils with rectifier and varistor for overvoltage protection
Low coil consumption
Sealing terminal covers
Wide variety of accessories

Heavy-duty contactors are designed with standard dimensions for easy integration and offer a wide range of top and side auxiliary contact blocks. They feature a horizontal mechanical interlock, allowing different contactor sizes to be interlocked up to 135A.

Rated at 1000 V AC nad up to 860 A.
315 A UL.

With a supply voltage range from 12V to 690V AC, DC, or AC/DC, they ensure reliable performance in demanding applications. Ideal for particularly heavy-duty use, these contactors provide durability and flexibility for industrial environments.

MS25 and MS32

Motor protection circuit breakers are special type of circuit breakers, designed for protection of wide range of single-phase and three-phase AC motors against overload and short circuit. They are used in industry, small machines, agricultural machines, compressors etc.

Approvals: UL/CSA
Range: 0.1 A … 32 A
Mounting on 35 mm rail
Horizontal or vertical operating position
Wide variety of snap-on auxiliary switch blocks and accessories


Motor protection circuit breakers are a special type of circuit breakers designed for the protection of wide range of single-phase and three-phase AC motors against overload and short circuit. They are used in industry, small machines, agricultural machines, compressors, repair shops, etc.

Protection of other loads:

Various low-inductive loads
Version for single-phase consumers
Version for transformer protection
Version for short-circuit protection