Three-Position Rotary Selector Switch Knob

Description

This Three-Position Rotary Selector Switch Knob is designed for electrical control applications, serving as an actuator for electromagnetic starters, contactors, relays, and other control circuits. It provides three distinct operational states for selection and control within industrial panels and control cabinets.

Can be used as electromagnetic starter, contactor,

relay and other electrical wiring control purposes

The three-position selector switch is utilized for controlling electrical circuits, such as motor start/stop functions, and managing contactors, relays, or serving as a mode selection switch in control panels requiring three distinct states.

Identified by CHINT branding (likely from the NP2 series), the switch is described as suitable for electromagnetic starters, contactors, relays, and general electrical wiring control.

Electrical Specifications

• Rated insulation voltage: 415 V
• Rated working voltage: 415, 380, 250, 240, 220, 125, 110 V
• Rated current:

AC-15 (AC Control Load):

• 415 V → 1.9 A
• 380 V → 2.5 A
• 250 V → 3 A
• 240 V → 3 A
• 220 V → 4.5 A
• 125 V → –
• 110 V → –

DC-13 (DC Control Load):

• 415 V → –
• 380 V → –
• 250 V → 0.27 A
• 240 V → –
• 220 V → 0.3 A
• 125 V → 0.55 A
• 110 V → 0.6 A

Dimensions

• Overall depth (including rear mechanism): Approximately 70 mm
• Projection from panel surface to rear of prominent part: 27 mm
• Front panel cutout / face size: Approximately 30 mm (Width) and 40 mm (Height) – likely the required panel opening dimensions

Mechanical Properties / Materials

• Rotary knob actuator – external material likely a plastic/chrome composite.
• Mounting frame and mounting hardware are plated metal (rainbow/plated finish) for panel attachment.
• Rear mechanism consists of contact modules (typically replaceable or available in various ratings depending on the model).
• Panel mounting interface with locking nut mechanism.

Application Suitability

• Mode selection switch (e.g., Off / Low / High or Auto / Off / Manual) in control enclosures.
• Controlling contactors in motor systems (start / stop / reverse, if configured with additional contacts).
• Input selection for relays or PLC systems.
• Suitable for industrial applications, electrical cabinets, machinery, and HVAC systems requiring three-level state selection.

If you have any question please contact [email protected]