Push Button Switches
ALX-HB4-BW33 Illuminated Push Button Switch, LED | 22mm
22 mm illuminated push button switch with LED lamp, 24 V / 110 V / 220 V, 1 NO + 1 NC contact, five lens colours, zinc alloy chrome bezel, screw terminals, 600 V AC 10 A.
The HB4-BW33 uses an LED instead of a neon lamp. It draws a fraction of the current, so it can be driven straight from a PLC output or a 24 V control bus without loading the circuit, and it holds its colour and brightness over a long service life. Supplied for 24 V, 110 V and 220 V supplies.
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 NO + 1 NC |
Operation | Momentary, spring return |
Actuator | Illuminated flush cap, 22 mm |
Actuator colour | White, green, red, yellow, blue |
Illumination | LED lamp, 24 V / 110 V / 220 V |
Rated voltage / current | 600 V AC, 10 A (AC-15 duty) as marked on the contact block |
Termination | Screw terminals |
Lamp | LED, integral, low current |
Lamp connection | Separate lamp terminals on the contact block |
The voltage is set by the letter in the model code: B = 24 V, G = 110 V, M = 220 V. The digit before it sets the lens colour.
Design Features
- LED lamp draws a fraction of the current of a neon or filament lamp, so it can sit on a PLC output
- Three supply versions (24 V, 110 V, 220 V) in the same 22 mm body
- Lamp terminals separate from the contacts, so indication can follow a different circuit
- Constant colour and brightness over the service life, with no warm-up and no flicker
- Chrome-plated zinc alloy bezel, standard 22 mm cutout, 1 NO + 1 NC contact block
Model Options
Model | Lens colour | Lamp | Contact |
HB4-BW33B5 | Green | LED 24 V | 1 NO + 1 NC |
HB4-BW34B5 | Red | LED 24 V | 1 NO + 1 NC |
HB4-BW35B5 | Yellow | LED 24 V | 1 NO + 1 NC |
HB4-BW33G5 | Green | LED 110 V | 1 NO + 1 NC |
HB4-BW34G5 | Red | LED 110 V | 1 NO + 1 NC |
HB4-BW35G5 | Yellow | LED 110 V | 1 NO + 1 NC |
HB4-BW33M5 | Green | LED 220 V | 1 NO + 1 NC |
HB4-BW34M5 | Red | LED 220 V | 1 NO + 1 NC |
HB4-BW35M5 | Yellow | LED 220 V | 1 NO + 1 NC |
White and blue lenses are available on request; state the supply voltage with the order.
Applications
PLC-driven operator panels, 24 V control systems, machine status indication and step-complete signalling on modern automation.