40A rotary switch, direction of rotation changeover switch L-0-P, panel mounting, gray front, black knob ŁK40-3.8368\P03

Rotary switch for changing the direction of rotation – reliability and simple installation

This three-pole rotary switch, with a rated current of 40A, is a solid solution for manual control of electrical circuits. It is primarily used for switching electric motors, transformers and other devices requiring a change in the direction of rotation or selection of power supply. The L-0-P model allows easy switching between three positions: left, zero (off), right, making it an ideal choice for both professional installers and end users.

Design and application

The switch is designed for panel mounting and features a high degree of protection IP65, which guarantees safe use even in harsh environmental conditions. Made of durable plastic, it provides long-lasting and reliable operation. The use of a C characteristic allows for safe starting of devices with motors – the switch reacts more slowly to short current surges, which prevents unnecessary tripping. This is particularly important for electric motors, which generate a high starting current.

• Versatile application: ideal for controlling electric motors, transformers and other devices requiring a change in the direction of rotation.
• Durable construction: the housing made of plastic provides resistance to mechanical damage and external factors.
• Safety: a high degree of protection IP65 protects against access to live parts and against the influence of moisture and dust.
• Easy installation: designed for panel mounting using screw connections.
• Suitable for working in difficult conditions: a wide range of operating temperatures (-40°C to +70°C) allows use in various industrial environments.

Parameters and compliance with standards

The switch meets the requirements of EN 60 947-3:1992, which confirms its safety and reliability. The rated operating power for AC-3 is 20 kW at 400 V, and the rated continuous current Iu is 40 A. Mechanical endurance at 3 million switching cycles guarantees a long service life of the device. Additionally, the switch is resistant to vibrations and shocks, which increases its reliability in demanding industrial applications.

It has a rated continuous current of 40A, and its rated operating power in category AC-3 at 400V is 20kW. The degree of protection IP65 ensures safe use in various environmental conditions, and the housing made of plastic guarantees mechanical strength. The number of poles is three, and the actuator is a knob for easy operation.

This model is compatible with wires with a cross-section from 4 mm² to 10 mm², and the tightening torque of the terminals is 2.0 Nm. This makes installation simple and safe. It is important to take appropriate safety precautions when working with electrical devices – all work should be performed by qualified personnel!