Emergency stop push-button switch K-MAX

mushroomIP66IP65

Overview
The K-MAX series provides miniature metal emergency stop pushbuttons in Ø16 mm and Ø22 mm for machine controls, operator panels and compact industrial interfaces where space is limited while maintaining clear emergency identification. Red anodized aluminium actuator, push-and-turn latching operation, available with integrated LED backlighting and contact arrangements up to 2NO + 2NC. Optional yellow bezel for standardized emergency identification.

Functional advantages

• Compact installation diameters: Ø16 mm and Ø22 mm for space-constrained panels
• Electromechanical metal construction with red anodized aluminium actuator
• LED backlit versions for improved visibility in control rooms and cabinets
• Push-and-turn (maintained) operation for positive latching and manual reset
• Optional yellow collar to meet normative emergency-stop identification requirements

Electrical data
Technology: Electromechanical
Number of functions: 1
Max. current: 3 A @ 250 Vac
Rated insulation voltage: 250 Vac
Initial contact resistance: ≤ 50 mΩ
Insulation resistance: ≥ 1000 MΩ
Dielectric strength: 1800 VAC
Electrical life: 50,000 cycles
Contact configurations: 1NO+1NC up to 2NO+2NC
Available lighting: LED backlighting integrated in actuator
LED colours: red, green, yellow, blue, white
LED supplies: 6 V, 12 V, 24 V, 110 V, 220 V

Mechanical characteristics
Installation diameter: 16 mm, 22 mm
Action: Maintained (latching) — push-and-turn reset
Max. actuation force: 6.0–6.5 N
Mechanical life: 1,000,000 cycles
Travel: 3.5 mm
Mounting: front-panel with nut (screw mounting)
Body material: stainless steel and anodized aluminium options
Button material: anodized aluminium (red actuator), mushroom or large mushroom shapes
Terminations: 2.8 mm QuickConnect, solder lugs, connectors

Environmental features
Operating temperature: -30 °C to +55 °C
Ingress protection: IP65 / IP66 (series rated IP65/IP66)
Impact resistance: not specified

Technical specifications

• Series: K-MAX
• Brand: TactHill
• Panel holes: Ø16 mm and Ø22 mm
• Actuator: red anodized aluminium, push-and-turn latching
• Contact options: 1NO+1NC up to 2NO+2NC
• Electrical rating: up to 3 A @ 250 Vac; rated insulation 250 Vac; dielectric strength 1800 VAC
• Illumination: integrated LED backlight — colours: red/green/yellow/blue/white; supplies: 6/12/24/110/220 V
• Terminals: 2.8 mm QuickConnect; also solder lugs and connectors
• Materials: stainless steel body options; anodized aluminium actuator
• Mechanical life: 1,000,000 cycles; electrical life: 50,000 cycles
• Ingress protection: IP65 / IP66
• Operating range: -30 °C to +55 °C