Narva Sealed Rocker Switch Off/on Spst 12V Red Illuminated 20A Part No. 63125BL

The Narva Sealed Rocker Switch is an Off/On SPST switch rated at 20A for use at 12V only, with red illumination and a sealed rocker design. It is identified by part number 63125BL and uses 5 terminals with push on connections.

This switch has 2 positions, uses a single pole layout, and is intended for straightforward 12V control applications where a compact dash-mounted switch is required. The mounting opening is 37.5mm x 21mm, with a mount length of 37.5mm.

Illumination includes both “Dash Light” and “On” functions, which helps the switch remain visible in low light conditions. The lamp colour is red, and the unit is sold each with a one year warranty.

For buyers matching existing wiring or replacing a worn switch, the key checks are the 20A rating, 12V-only requirement, 37.5mm x 21mm mounting opening, and the 63125BL part number. Those details matter more than appearance alone when confirming interchange.

Key Features

• Off/On SPST rocker switch
• 20A rated for 12V use only
• Red illuminated with Dash Light and On functions
• 5 terminals with push on connections
• Sealed rocker design
• Mounting opening: 37.5mm x 21mm

Specifications

• Brand: Narva
• Part No.: 63125BL
• Voltage: 12V
• Power rating: 20A
• Switch action: Off - On - SPST
• Switch type: Rocker
• Number of positions: 2
• Number of poles: 1

Application and Buying Notes

Before ordering, confirm the switch opening in the panel is 37.5mm x 21mm and that the wiring setup suits a 5-terminal rocker switch with push on terminals. If your existing switch is already identified as Narva 63125BL, that part number is the most reliable match to check first.

The 20A rating applies at 12V only, so this is not a general-purpose switch for higher voltage systems. Matching the electrical load is essential, especially where the switch is controlling accessories that draw close to the rated current.

The red illumination includes both dash light and on indications, which is useful when the switch needs to be seen at night or in low light. That said, illumination style should be checked against the original setup so the switch functions and appearance remain appropriate for the vehicle or accessory panel.

Because fitment data has not been supplied for specific vehicles, the safest approach is to compare the part number, terminal count, switch action, and mounting measurements against the existing part or the intended opening. That method avoids guesswork and helps ensure the switch suits the application before purchase.

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 63125BL 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 Length 37.5mm, Number of Positions 2, Switch Illumination Illuminated, Product Group 2 FUSES BREAKERS RELAYS SWITCHES.

Additional published details for cross-checking include Part No. 63125BL, Brand NARVA, Description Narva Sealed Rocker Switch Off/On SPST 12V Red Illuminated (Contacts Rated 20A @ 12V), Number of Terminals 5, Switch Action Off - On - SPST, Lamp Colour/s Red, Number of Poles 1, Switch Type Rocker, Weight 0.04kg, Product Group 1 AUTO ELEC ACCESSORIES.

Narva Sealed Rocker Switch Off/On SPST 12V Red Illuminated (Contacts Rated 20A @ 12V). Part number 63125BL 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 63125BL, 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: Please confirm compatibility using the Narva part number 63125BL, the 12V 20A rating, the 5-terminal layout, and the 37.5mm x 21mm mounting opening before ordering.

FAQ

What is the part number for this Narva rocker switch?

The part number is 63125BL. For this listing, part number 63125BL 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 this switch suitable for 24V systems?

No. The listed rating is 20A for use at 12V only. For this listing, part number 63125BL 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 5 terminals. For this listing, part number 63125BL 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 is the mounting opening size?

The mounting opening is 37.5mm x 21mm. For this listing, part number 63125BL 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 does it have?

It is an Off - On - SPST rocker switch with 2 positions and 1 pole. For this listing, part number 63125BL 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.

Does the switch have illumination?

Yes. It is illuminated with red lamp colour and includes both Dash Light and On illumination. For this listing, part number 63125BL 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.