OEX Push Button Switch On-off Spst 12V Green Illuminated 20A ACX3748BL

The OEX ACX3748BL push button switch is a 12V on-off SPST switch with green illumination and contacts rated at 20A at 12V. It uses 3 terminals, has 2 positions, and is listed as a rocker type switch in the supplied product details.

With a 12mm mount diameter and 4mm mount length, this switch suits installations where the panel opening and mounting depth need to be checked before purchase. The unit weight is 0.03kg, and it is supplied as an individual switch, sold each.

For buyers working on 12V electrical accessories, the key identifiers here are the OEX brand, part number ACX3748BL, and the 20A current rating at 12V. The lamp colour is green, and the switch is described as illuminated, which may be useful where visibility of the switch position matters.

A note is included for 24V applications: use Part No. ACX3912 resistor with the switch. That detail is important because the switch itself is specified for 12V, so application voltage needs to be confirmed before fitting.

Key Features

• OEX push button switch
• On-Off SPST action
• 12V rated switch
• Contacts rated 20A @ 12V
• Green illuminated switch
• 3 terminal design

Specifications

• Brand: OEX
• Part No.: ACX3748BL
• Product type: Switch
• Switch action: On - Off - SPST
• Voltage: 12V
• Power rating: 20A
• Number of positions: 2
• Number of poles: 1

Application and Buying Notes

Before ordering, check the panel opening size and mounting space against the 12mm mount diameter and 4mm mount length. Those measurements are the most practical confirmation points for whether the switch will physically suit the location you have in mind.

Electrical load matters as much as the hole size. The switch is rated at 20A at 12V, has 3 terminals, and is a 1-pole SPST on-off switch, so it should be matched to the circuit design and current draw of the accessory being controlled.

If the application is 24V, the supplied note states that Part No. ACX3912 resistor is used with the switch. That means the 12V rating should not be ignored, and the vehicle or accessory voltage should be confirmed before installation.

The green illumination is part of the product spec and may help with switch visibility, but it should not be treated as a substitute for checking circuit compatibility. Where a switch is being replaced, compare the old unit’s terminal layout, mounting size, and switching action with ACX3748BL before purchase.

The one year warranty applies to the product as listed, but warranty support does not replace the need to verify fitment and voltage suitability. For electrical accessories, the safest approach is to match the part number, mount dimensions, and switch action first.

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 ACX3748BL 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, Note NOTE: For 24V applications, use Part No. ACX3912 resistor with the switch, Number of Positions 2, Switch Illumination Illuminated, Product Group 1 AUTO ELEC ACCESSORIES.

Additional published details for cross-checking include Part No. ACX3748BL, Brand OEX, Description OEX Push Button Switch On/Off SPST 12V Green Illuminated (Contacts Rated 20A @ 12V), Number of Terminals 3, Switch Action On - Off - SPST, Lamp Colour/s Green, Mount Length 4mm, Number of Poles 1, Switch Type Rocker, Weight .03kg.

OEX Push Button Switch On/Off SPST 12V Green Illuminated (Contacts Rated 20A @ 12V). Part number ACX3748BL 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 ACX3748BL, 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.

Compatibility note: Confirm fitment by matching the part number ACX3748BL, the 12V rating, the 12mm mount diameter, the 4mm mount length, and the 3-terminal SPST on-off layout with the application before ordering.

FAQ

What is the part number for this switch?

The part number is ACX3748BL. For this listing, part number ACX3748BL 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 the switch rated for?

It is rated for 12V. For this listing, part number ACX3748BL 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 contacts are rated at 20A at 12V. For this listing, part number ACX3748BL 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 have?

It has 3 terminals. For this listing, part number ACX3748BL 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 listed mount diameter is 12mm, with a mount length of 4mm. For this listing, part number ACX3748BL 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.

Can it be used in 24V applications?

The note states that for 24V applications, Part No. ACX3912 resistor is used with the switch. Confirm the application requirements before fitting. For this listing, part number ACX3748BL 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.