Narva Heavy Duty Rocker Switch Off/on/on Dpdt 20A 12V Part No. 63051BL

The Narva Heavy Duty Rocker Switch is an Off/On/On DPDT switch with contacts rated at 20A at 12V and 10A at 24V. It is identified as part number 63051BL and uses a push fit design with push on terminals, making it suited to tidy panel installations where a standard rocker format is required.

This switch has 2 poles, 4 terminals, and 3 positions with an Off - On - On - DPDT switch action. It is non illuminated, with lamp colour listed as not applicable. For buyers matching an existing setup, the key points are the DPDT format, the 20A 12V rating, and the 37.5 x 21mm mounting opening.

Narva lists this as a heavy duty rocker switch in the auto electrical accessories group, supplied as an each unit. The warranty is one year. If you are replacing a switch or setting up a new circuit, the part number 63051BL and the mounting opening size are the most practical checks before purchase.

Key Features

• DPDT rocker switch with Off/On/On action
• Push fit design with push on terminals
• 20A rating at 12V, 10A at 24V
• 2 poles and 4 terminals
• 3 positions
• Non illuminated

Specifications

• Brand: Narva
• Part No.: 63051BL
• Product type: Switch
• Switch type: Rocker
• Switch action: Off - On - On - DPDT
• Power rating: 20A
• Voltage: 12V
• Also rated: 10A at 24V

Application and Buying Notes

Before ordering, check that your panel has a mounting opening of 37.5 x 21mm and that your wiring arrangement suits a DPDT rocker with 4 terminals. The switch action is Off - On - On, so it is important to confirm that your circuit needs a 3-position switch rather than a simple on/off layout.

The electrical rating matters as much as the physical fit. This switch is rated at 20A at 12V and 10A at 24V, so it should only be used within those limits. If the existing switch or circuit is already identified by part number 63051BL, that is the strongest match point to work from.

Because this is a non illuminated switch with lamp colour listed as not applicable, it is best suited to installations where no switch backlighting is required. The push fit design with push on terminals may suit straightforward replacement work, but the terminal style still needs to match your wiring and connector setup.

For a clean installation, compare the switch body size, terminal count, and polarity or circuit arrangement before purchase. The main checks here are the 37.5 x 21mm cut-out, the DPDT format, the 2-pole construction, and the 3-position Off/On/On action. Those details are more useful than appearance alone when you are replacing an automotive electrical switch.

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 63051BL 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 2, Switch Type Rocker, Product Group 2 FUSES BREAKERS RELAYS SWITCHES, Part No. 63051BL.

Additional published details for cross-checking include Brand NARVA, Description Narva Heavy Duty Rocker Switch Off/On/On DPDT (Contacts Rated 20A @ 12V), Number of Terminals 4, Switch Action Off - On - On - DPDT, Lamp Colour/s Not Applicable, Number of Positions 3, Switch Illumination Non Illuminated, Product Group 1 AUTO ELEC ACCESSORIES.

Narva Heavy Duty Rocker Switch Off/On/On DPDT (Contacts Rated 20A @ 12V). Part number 63051BL 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 63051BL, 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.

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.

The listed warranty is One Year. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Confirm compatibility by matching part number 63051BL, the 37.5 x 21mm mounting opening, and the DPDT Off/On/On 2-pole, 4-terminal layout before ordering.

FAQ

What type of switch is this?

It is a Narva heavy duty rocker switch with an Off/On/On DPDT switch action. It has 2 poles, 4 terminals, and 3 positions.

What is the current and voltage rating?

The switch is rated at 20A at 12V and 10A at 24V. It should be used within those stated limits.

Is the switch illuminated?

No. The switch is listed as non illuminated, and lamp colour is not applicable.

What size mounting opening does it need?

The mounting opening is 37.5 x 21mm.

How many terminals does it have?

It has 4 terminals.

What part number should I use to confirm the item?

The part number is 63051BL. Matching that number with the DPDT Off/On/On format and the 37.5 x 21mm mounting opening is the best way to confirm suitability.