OEX Rocker Switch On/off Spst 12V 20A Amber Illuminated ACX3791

The OEX Rocker Switch On/Off SPST is a 12V, 20A switch with a single pole, two-position layout and amber illumination. It is identified by part number ACX3791 and is supplied as one each, making it a straightforward choice when you need a compact illuminated control switch for a 12V automotive electrical setup.

This switch uses 3 blade terminals and an On/Off - SPST action. The mounting hole size is 21 x 37mm, so the panel opening needs to match that size before installation. With a 1 pole / 2 position design, it suits applications that require a simple switched circuit rather than a multi-function control.

As an OEX switch in the auto electrical accessories group, it sits in the same category as other relays, breakers, fuses and switches used in vehicle electrical work. The amber lamp colour provides an illuminated reference point, which can be useful where the switch position needs to be visible in low light.

The unit weighs 0.02kg and carries a one-year warranty. For buyers matching an existing switch, the most important identifiers are the 12V rating, 20A power rating, 3 terminals, and ACX3791 part number.

Key Features

• 12V operating voltage
• 20A power rating
• On/Off SPST action
• 1 pole, 2 positions
• 3 blade terminals
• Amber illuminated

Specifications

• Brand: OEX
• Part No.: ACX3791
• Product type: Switch
• Unit of measure: Each
• Switch illumination: Illuminated
• Lamp colour: Amber
• Number of terminals: 3
• Number of poles: 1

Application and Buying Notes

Before ordering, check the panel cut-out against the stated 21 x 37mm mounting hole size and confirm the circuit is designed for a 12V, 20A switch. Those two checks matter just as much as the switch style, because a rocker switch can look suitable but still fail to fit the opening or suit the electrical load.

The 3 blade terminals and SPST On/Off action make this a simple single-circuit switch rather than a multi-function control. If you are replacing an existing switch, compare the terminal layout, position count, and the ACX3791 part number so you are matching like for like.

Amber illumination can help with visibility, but it does not change the electrical rating or the physical fit. Make sure the wiring is appropriate for the 20A rating and that the switch orientation suits the way the panel is installed, especially where access or back clearance is limited.

If you are fitting into a custom panel or modifying an existing dash switch position, measure the opening carefully before purchase. The key identifiers to verify are OEX, ACX3791, 12V, 20A, 3 terminals, and the 21 x 37mm mounting hole size. Those details are the best guide to selecting the right switch for the job.

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 ACX3791 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, Number of Poles 1, Switch Type Rocker, Switch Illumination Illuminated, Product Group 2 FUSES BREAKERS RELAYS SWITCHES.

Additional published details for cross-checking include Part No. ACX3791, Brand OEX, Description OEX Rocker Switch On/Off SPST 12V 20A Amber Illuminated, Number of Terminals 3, Switch Action On - Off - SPST, Lamp Colour/s Amber, Number of Positions 2, Item Type Switch, Weight .02kg, Product Group 1 AUTO ELEC ACCESSORIES.

OEX Rocker Switch On/Off SPST 12V 20A Amber Illuminated. Part number ACX3791 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 ACX3791, 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 ACX3791 part number, 12V 20A rating, 3 blade terminals, and 21 x 37mm mounting hole size against your existing switch or application before purchase.

FAQ

What is the part number for this OEX rocker switch?

The part number is ACX3791. For this listing, part number ACX3791 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 and current rating does the switch have?

It is rated at 12V and 20A. For this listing, part number ACX3791 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 the switch use?

It has 3 blade terminals. For this listing, part number ACX3791 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 type of switch action is it?

It is an On/Off SPST rocker switch with 2 positions and 1 pole. For this listing, part number ACX3791 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 is required?

The mounting hole size is 21 x 37mm. For this listing, part number ACX3791 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 amber illuminated. For this listing, part number ACX3791 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.