Hella Rocker Switch On/off Spst 12V Blue Illuminated 20A Part No. 4423

The Hella Rocker Switch is a 12V illuminated switch with a blue lamp colour and contacts rated at 20A at 12V. It uses an SPST on-off switching action, has 2 positions, and is supplied as a single piece under part number 4423.

This switch has 3 terminals, a 12mm mount diameter, and a 6mm mount length. Those dimensions make the mounting hole and panel depth important checks before purchase, especially where space behind the dash or console is limited.

Listed as a Hella switch in the auto electrical accessories group, it is a practical choice when you need a straightforward on-off control with illumination. The unit is sold each and carries a three-year warranty.

For buyers comparing options, the key identifiers here are Hella, part no. 4423, 12V operation, SPST on-off action, blue illumination, and a 20A contact rating at 12V. Matching those details to the intended application is the safest way to confirm suitability.

Key Features

• 12V illuminated rocker switch
• SPST on-off action with 2 positions
• Contacts rated 20A at 12V
• Blue lamp colour
• 3-terminal design
• 12mm mount diameter

Specifications

• Brand: Hella
• Part No.: 4423
• Product type: Switch
• Switch type: Rocker / toggle
• Switch action: On - Off - SPST
• Voltage: 12V
• Power rating: 20A
• Number of poles: 1

Application and Buying Notes

Before buying, confirm the mounting hole size is 12mm and that the panel has enough depth for the 6mm mount length and 3-terminal connection layout. Those physical details matter as much as the electrical rating when you are fitting a switch into a dash, console, switch panel, or accessory housing.

The 20A contact rating is specified at 12V, so the switch should be matched to the electrical load in the intended circuit. That rating is useful for planning, but the final application still depends on the actual current draw, wiring size, and how the circuit is protected.

Because this is an SPST on-off switch with 2 positions, it suits simple single-circuit control rather than more complex switching arrangements. If your existing switch has a different action, terminal count, or mounting size, the part may not be interchangeable even if it looks similar.

The blue illumination is part of the switch specification, which may matter if you are matching existing dashboard lighting or other cabin controls. Always compare the physical dimensions, terminal layout, voltage, and part number 4423 before ordering, especially if you are replacing a failed switch rather than starting a new install.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number 4423 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type SWITCH, Unit of Measure EACH, Warranty Three Years, Power Rating (Amp) 20, Voltage 12, Mount Diameter 12mm, Number of Poles 1, Switch Type Toggle, Product Group 1 AUTO ELEC ACCESSORIES, Part No. 4423.

Additional published details for cross-checking include Brand HELLA, Description Hella Rocker Switch On/Off SPST 12V Blue Illuminated (Contacts Rated 20A @ 12V), Number of Terminals 3, Switch Action On - Off - SPST, Lamp Colour/s Blue, Mount Length 6mm, Number of Positions 2, Switch Illumination Illuminated, Product Group 2 FUSES BREAKERS RELAYS SWITCHES.

Hella Rocker Switch On/Off SPST 12V Blue Illuminated (Contacts Rated 20A @ 12V). Part number 4423 should be checked first. Listed voltage is 12. Listed output rating is 20. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number 4423, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a switch in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 20 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Where no verified application list is available, the part number, mounting details, connector style, and published specifications should be used as the primary selection criteria.

Compatibility note: Please confirm compatibility by checking part number 4423, 12V operation, 12mm mount diameter, 3 terminals, and SPST on-off switch action against your existing switch and application before purchase.

FAQ

What is the part number for this Hella rocker switch?

The part number is 4423. For this listing, part number 4423 is the main reference point. Listed voltage is 12. Listed output rating is 20. These details should still be checked against the original unit before ordering.

What voltage is this switch designed for?

It is specified as a 12V switch. For this listing, part number 4423 is the main reference point. Listed voltage is 12. Listed output rating is 20. These details should still be checked against the original unit before ordering.

How many terminals does it have?

It has 3 terminals. For this listing, part number 4423 is the main reference point. Listed voltage is 12. Listed output rating is 20. These details should still be checked against the original unit before ordering.

What is the mounting hole size?

The mount diameter is 12mm. For this listing, part number 4423 is the main reference point. Listed voltage is 12. Listed output rating is 20. These details should still be checked against the original unit before ordering.

Is the switch illuminated?

Yes. It is listed as illuminated, with blue lamp colour/s. For this listing, part number 4423 is the main reference point. Listed voltage is 12. Listed output rating is 20. These details should still be checked against the original unit before ordering.

What is the electrical rating?

The contacts are rated at 20A at 12V. For this listing, part number 4423 is the main reference point. Listed voltage is 12. Listed output rating is 20. These details should still be checked against the original unit before ordering.