Push Button Switches
ALX-HB4-BL42 Raised Push Button Switch | 22mm 1NC
22 mm raised (high head) metal push button switch, 1 NC contact, momentary spring return, red cap, zinc alloy chrome bezel, screw terminals, 600 V AC 10 A.
The HB4-BL42 is the raised-head button of the HB4 range. The cap stands clear of the bezel, so the actuator can be found by touch and pressed with a fingertip even when the panel is crowded. It is the usual choice for a function that has to be identified without looking, such as a jog or a reset.
Technical Specifications
Item | Specification |
Mounting hole | 22 mm (22.3 mm cutout) |
Bezel / head material | Zinc alloy, chrome plated |
Contact housing | Plastic |
Contact configuration | 1 NC |
Operation | Momentary, spring return |
Actuator | Raised head, 22 mm dia. |
Actuator colour | Red |
Illumination | None |
Rated voltage / current | 600 V AC, 10 A (AC-15 duty) as marked on the contact block |
Termination | Screw terminals |
The raised head protrudes past the bezel ring. Where a flush face is required for wipe-down, use the HB4-BA group instead.
Design Features
- Raised cap standing clear of the bezel, so the button can be located by touch on a crowded panel
- Normally-closed contact with spring return, so the circuit is made until the head is pressed
- Larger usable cap face than a flush button, which helps when the operator wears gloves
- Chrome-plated zinc alloy bezel and metal clamping ring resist knocks at the panel edge
- Clip-on screw-terminal contact block, replaceable without removing the bezel
Model Options
Model | Colour | Contact |
HB4-BL42 | Red | 1 NC |
HB4-BL11 | White | 1 NO |
HB4-BL21 | Black | 1 NO |
HB4-BL31 | Green | 1 NO |
HB4-BL51 | Yellow | 1 NO |
HB4-BL61 | Blue | 1 NO |
The 1 NO versions (BL11-BL61) use the same head and bezel and differ only in the contact block.
Applications
Machine tools, packaging and woodworking machinery, lift and hoist control stations, pump and compressor panels, food-processing lines and OEM control cabinets.