Push Button Switches
ALX-HB4-BA43 Flush Push Button Switch with Mark | 22mm
22 mm flush push button switch with a mark on the cap for legend inserts, 1 NC and 1 NO versions, red / green / white / yellow / blue caps, zinc alloy chrome bezel, screw terminals, 600 V AC 10 A.
The HB4-BA43 group uses the flush bezel but carries a marking on the cap face, so a legend or symbol can be shown on the button itself rather than on a separate engraved plate beside it. It is the practical way to label a dense panel without adding label holders, and the mark stays legible after the panel has been wiped down.
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 or 1 NO (by model) |
Operation | Momentary, spring return |
Actuator | Flush cap with marking, 22 mm |
Actuator colour | Red, green, white, yellow, blue |
Illumination | None |
Rated voltage / current | 600 V AC, 10 A (AC-15 duty) as marked on the contact block |
Termination | Screw terminals |
Cap marking | Legend area moulded into the cap face |
Red and green caps are normally-closed (BA4322, BA4342); white, yellow and blue are normally-open (BA4311, BA4351, BA4331).
Design Features
- Marking on the cap face: a legend or symbol can be carried on the button, so no separate plate is needed beside it
- Marked caps are moulded, not printed, so the legend does not wear off with cleaning
- Both contact types are available in the group: red and green are 1 NC, white / yellow / blue are 1 NO
- Flush profile keeps the cap inside the bezel ring, so the mark sits flat to the panel and cannot be picked off
- Same 22 mm cutout and chrome-plated zinc alloy bezel as the rest of the HB4 range
Model Options
Model | Colour | Contact |
HB4-BA4322 | Red | 1 NC |
HB4-BA4342 | Green | 1 NC |
HB4-BA4311 | White | 1 NO |
HB4-BA4351 | Yellow | 1 NO |
HB4-BA4331 | Blue | 1 NO |
Send the legend drawing with the enquiry if the mark has to carry a specific symbol rather than the standard line.
Applications
Dense control panels, machine-tool operator stations, HVAC and building control panels, and any cabinet where buttons have to be identified without extra label plates.