OEX Toggle Switch On-off Spst 20A 12V Part No. ACX3871BL

The OEX Toggle Switch On-Off SPST is a compact automotive switch rated at 20A and 12V, with a part number of ACX3871BL. It suits applications where a simple two-position on/off control is needed and where a 12mm mounting hole is available for installation.

This switch uses a single pole, single throw layout with 2 terminals and screw terminal connections. The non-illuminated design keeps the unit straightforward, while the stated mount diameter of 12mm and mount length of 3mm help when checking panel space before fitting.

The listed features also note suitability for 12 or 24V systems, which makes it important to confirm the electrical setup and load before purchasing. At only .02kg, it is a light component, supplied individually as each.

For buyers comparing options, the key identifiers here are the OEX brand, the ACX3871BL part number, the 20A current rating, the 12V rating, and the 12mm mounting hole requirement. Those details should be matched carefully to the job at hand.

Key Features

• OEX toggle switch
• On-Off SPST action
• Rated 20A
• 12V listed rating
• Also noted for 12 or 24V use
• 2 screw terminals

Specifications

• Brand: OEX
• Part No.: ACX3871BL
• Product type: Switch
• Switch type: Toggle
• Switch action: On - Off - SPST
• Number of poles: 1
• Number of terminals: 2
• Power rating: 20A

Application and Buying Notes

Before ordering, confirm the panel cut-out is 12mm and that there is enough depth for the 3mm mount length and the rear terminals. A switch that physically fits the panel but leaves no room behind it is a common installation problem, so measuring both front and rear clearance is worth doing first.

The electrical side matters just as much as the physical size. This OEX switch is listed at 20A, with a 12V rating and a feature note that mentions 12 or 24V use. Check the circuit voltage, expected load, and wiring size against those figures so the switch is used within its intended limits.

The switch is a non-illuminated SPST unit with 2 screw terminals and 2 positions: on and off. That makes it suitable for straightforward single-circuit switching, but not for applications that need multiple poles, multiple throws, or an indicator light built into the switch body.

The part number ACX3871BL is the most useful reference when cross-checking against an existing switch or parts catalogue. If you are replacing a failed switch, compare the old unit’s terminal count, mount size, action, and rating before buying, rather than relying on appearance alone.

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 ACX3871BL 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 .02kg, Product Group 1 AUTO ELEC ACCESSORIES.

Additional published details for cross-checking include Part No. ACX3871BL, Brand OEX, Description OEX 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 3mm, Number of Positions 2, Switch Illumination Non Illuminated.

OEX Toggle Switch On/Off SPST (Contacts Rated 20A @ 12V). Part number ACX3871BL 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 ACX3871BL, 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 matching the OEX part number ACX3871BL, the 12mm mounting hole, the 2-terminal SPST on-off action, and the required voltage and current rating before ordering.

FAQ

What type of switch is this?

It is an OEX toggle switch with SPST on-off action. The listing shows 1 pole, 2 positions, and 2 screw terminals. For this listing, part number ACX3871BL 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 current rating does it have?

The switch is rated at 20A. For this listing, part number ACX3871BL 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 listed?

The product is listed at 12V, and the features also note 12 or 24V use. For this listing, part number ACX3871BL 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?

The specified mount diameter is 12mm. For this listing, part number ACX3871BL 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 illumination is listed as non illuminated, and lamp colour is not applicable. For this listing, part number ACX3871BL 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 part number should I use for checking compatibility?

The part number is ACX3871BL. It is the most reliable identifier to compare against the existing switch or catalogue listing. For this listing, part number ACX3871BL 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.