OEX Rocker Switch On/off Spst 12V Red Illuminated 10A Part No. ACX3787

The OEX Rocker Switch ACX3787 is a 12V, 10A switch with 1 pole and 2 positions, arranged as an On/Off SPST unit. It uses a 20mm round mounting hole and has 4 blade terminals, which makes it a straightforward choice when you are replacing a matching illuminated rocker switch in an automotive electrical setup.

This switch is supplied as an illuminated unit with a red lamp, and the contacts are rated at 10A @ 12V. The compact format, listed at 20mm mount diameter and 4 terminals, suits applications where the panel opening and terminal layout must match the existing switch before installation.

For buyers comparing parts, the key identifiers are the OEX brand, part number ACX3787, 12V operation, and the red illuminated On/Off SPST configuration. Those details matter because rocker switches are commonly selected by mounting size, terminal count, polarity of operation, and lamp style rather than by appearance alone.

Key Features

• 12V operation
• 10A contact rating
• On/Off - SPST action
• 1 pole, 2 positions
• 4 blade terminals
• Red illuminated switch

Specifications

• Brand: OEX
• Part No.: ACX3787
• Type: Switch
• Switch type: Rocker
• Switch action: On - Off - SPST
• Number of poles: 1
• Number of positions: 2
• Number of terminals: 4

Application and Buying Notes

Before ordering, confirm that your existing switch uses a 20mm round mounting hole and 4 blade terminals, as these are the main physical checkpoints listed for this OEX ACX3787 rocker switch. The unit is a 12V, 10A, 1 pole, 2 position On/Off SPST switch, so it should only be matched to an application that needs those same electrical and switching characteristics.

If you are replacing a switch rather than building a new circuit, check the terminal arrangement on the vehicle side as well as the face style and illumination requirement. This version is red illuminated, which is useful when the original switch is also lit or when a visible indicator is required in the same panel location.

The listed 10A rating is the maximum contact rating at 12V, so the connected load should be assessed before installation. If the circuit draws more than the switch is rated for, or if the application uses a different system voltage, the switch may not be suitable without the correct supporting components.

A note is provided for 24V applications: use Part No. ACX3912 resistor with the switch. That is an important compatibility checkpoint for anyone working across 12V and 24V systems, because the switch itself is listed as 12V and the extra resistor is specifically mentioned for 24V use.

The one year warranty applies to the part itself, but correct selection still depends on matching the mounting hole, terminal count, voltage, and switching action. In practice, those details are what determine whether the switch is a direct replacement or simply a similar-looking component.

When checking your old part, compare the physical mount size, the number of terminals, the pole and position count, and the illuminated red lamp style against the details here. That is the most reliable way to avoid ordering a switch that looks close but differs in function or fit.

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 ACX3787 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) 10, Voltage 12, Mount Diameter 20mm, Note NOTE: For 24V applications, use Part No. ACX3912 resistor with the switch, Number of Positions 2, Switch Illumination Illuminated.

Additional published details for cross-checking include Product Group 2 FUSES BREAKERS RELAYS SWITCHES, Part No. ACX3787, Brand OEX, Description OEX Rocker Switch On/Off SPST 12V Red Illuminated (Contacts Rated 10A @ 12V), Number of Terminals 4, Switch Action On - Off - SPST, Lamp Colour/s Red, Mount Length 2mm, Number of Poles 1, Switch Type Rocker.

OEX Rocker Switch On/Off SPST 12V Red Illuminated (Contacts Rated 10A @ 12V). Part number ACX3787 should be checked first. Listed voltage is 12. Listed output rating is 10. These details form the core reference points used by parts interpreters when confirming the correct replacement.

For part number ACX3787, 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 10 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.

In the absence of a verified fitment list, the safest approach is to compare the removed unit directly with the listed product details. That includes checking the housing style, pulley layout, regulator arrangement, and any visible identification numbers before supply is approved.

Compatibility note: Confirm fitment by matching part number ACX3787, 12V operation, 10A rating, 20mm round mounting hole, 4 blade terminals, and On/Off SPST switch action before purchase. For 24V applications, the listed ACX3912 resistor is required with the switch.

FAQ

What is the part number for this OEX rocker switch?

The part number is ACX3787.

Is this switch 12V or 24V?

The switch is listed as 12V. For 24V applications, use Part No. ACX3912 resistor with the switch.

How many terminals does it have?

It has 4 blade terminals.

What size mounting hole is required?

It requires a 20mm round mounting hole.

Is the switch illuminated?

Yes. It is an illuminated switch with a red lamp colour.

What type of switching action does it use?

It is an On/Off SPST switch with 1 pole and 2 positions.