Revolution Toggle Switch On-off Spst 20A 12V 12MM Mount 56-90029BLR

The Revolution Toggle Switch On/Off SPST is a 12V switch with contacts rated to 20A, supplied as a single pack under part no. 56-90029BLR. It uses a 12mm diameter mounting hole and a 29mm mount length, which are the key dimensions to check before cutting or replacing a panel opening.

This is a non-illuminated toggle switch with 2 blade terminals and a 1-pole, 2-position On-Off SPST action. It is listed as a switch in the auto electrical accessories group and weighs 0.04kg, making it a compact option where a simple latching on/off control is required.

The switch is supplied with a metal On/Off tab and carries a one year warranty. For buyers matching an existing setup, the most useful identifiers are the 12V rating, 20A power rating, 12mm mount diameter, and part no. 56-90029BLR.

Key Features

• Toggle switch style
• 12V system rating
• 20A contact rating
• On-Off SPST action
• 12mm diameter mounting hole
• 2 x blade terminals

Specifications

• Brand: Revolution
• Part No.: 56-90029BLR
• Product type: Switch
• Switch action: On-Off SPST
• Number of poles: 1
• Number of positions: 2
• Voltage: 12V
• Power rating: 20A

Application and Buying Notes

Before ordering, confirm the panel opening is 12mm and that the available mounting depth suits the 29mm mount length. Those two dimensions are the practical fitment checkpoints for this switch, especially where the rear of the panel is tight or where nearby wiring may limit space.

Check that your circuit is a 12V system and that the load falls within the 20A rating. The switch is a 1-pole, 2-position On-Off SPST unit, so it suits a straightforward single circuit control rather than multi-function switching.

The switch has 2 blade terminals, so the existing wiring needs to be suitable for that terminal style. If you are replacing an original switch, compare the part no. 56-90029BLR, the physical dimensions, and whether a non-illuminated switch is acceptable for the application.

As with any electrical component, the correct choice depends on the vehicle or equipment’s wiring arrangement, mounting hole size, and current demand. Matching the listed specifications is the safest way to avoid ordering the wrong switch, particularly when the original part is worn or unreadable.

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 56-90029BLR 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 One Year, Power Rating (Amp) 20, Voltage 12, Mount Diameter 12mm, Number of Poles 1, Switch Type Toggle, Weight .04kg, Product Group 1 AUTO ELEC ACCESSORIES.

Additional published details for cross-checking include Part No. 56-90029BLR, Brand REVOLUTION, Description Revolution Toggle Switch On/Off SPST (Contacts Rated 20A @ 12V), Number of Terminals 2, Switch Action On - Off - SPST, Lamp Colour/s Not Applicable, Mount Length 29mm, Number of Positions 2, Switch Illumination Non Illuminated.

Revolution Toggle Switch On/Off SPST (Contacts Rated 20A @ 12V). Part number 56-90029BLR 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 56-90029BLR, 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: Confirm compatibility by checking part no. 56-90029BLR, the 12mm mounting hole, 29mm mount length, 12V rating, 20A rating, and 2 blade terminal layout against your existing switch or panel opening before ordering.

FAQ

What type of switch is this?

It is a Revolution toggle switch with On-Off SPST action, meaning it is a single-pole, two-position switch for simple on/off control. For this listing, part number 56-90029BLR 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 electrical rating does it have?

The switch is rated at 12V and 20A. For this listing, part number 56-90029BLR 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 size mounting hole does it need?

It requires a 12mm diameter mounting hole and has a 29mm mount length. For this listing, part number 56-90029BLR 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 2 blade terminals. For this listing, part number 56-90029BLR 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?

No. The switch is listed as non-illuminated, and lamp colour is not applicable. For this listing, part number 56-90029BLR 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 warranty is supplied with this switch?

It carries a one year warranty. For this listing, part number 56-90029BLR 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.