Push Button Switches
ALX-HB4-BA42 Flush Metal Push Button Switch | 22mm 1NC
22 mm flush metal push button switch, 1 NC contact, momentary action, red cap, zinc alloy chrome bezel, screw terminals, 600 V AC 10 A. OEM branding and bulk supply from ALUX.
The HB4-BA42 is the normally-closed member of the HB4 flush button family: a 22 mm panel-mount switch with a chrome-plated zinc alloy bezel, a red flush cap and one normally-closed contact block. The cap sits almost level with the bezel, which is the version usually specified where an operator must not be able to rest a hand on the actuator, or where the panel front has to be wiped down between shifts.
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 | Flush cap, 22 mm |
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 |
Ratings shown are the series figures marked on the contact block. Final ratings for your configuration are confirmed on the datasheet during the RFQ.
Design Features
- Zinc alloy bezel and clamping ring, chrome plated: the front ring is die-cast metal, so it keeps its shape when the panel nut is over-torqued
- One normally-closed contact block on screw terminals, marked 600 V AC 10 A for AC-15 control duty
- Flush cap sits nearly level with the bezel, so there is no ledge for swarf, dust or cleaning water to collect
- The contact block unclips from the bezel without disturbing the panel nut, so a contact can be replaced in service without re-wiring the panel
- Same 22 mm cutout as the rest of the HB4 range, so mushroom, selector, key and illuminated heads can be mixed on one panel with a single punch
Model Options
Model | Colour | Contact |
HB4-BA42 | Red | 1 NC |
Other cap colours and the normally-open version are available on the same bezel; ask for the HB4-BA11 group when you need 1 NO.
Applications
Machine tools, packaging and woodworking machinery, lift and hoist control stations, pump and compressor panels, food-processing lines and OEM control cabinets.