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Black rectangular rocker switch with four quick-connect tabs

Hubbell Incorporated

Hubbell Wiring Device-Kellems MR21SP DPST rocker switch

SKU CH-857H-AC9X6

A DPST rocker switch with four 0.250 in quick-connect tabs rated for 5 A at 12 V DC

  • Color familyBlack
  • Product typeLight Switch
  • Color and finishBlack
  • DPST contact form controls two circuits independently
  • 5 A at 12 V DC rating powers accessories and lights
  • 250 in quick-connect tabs speed up installation
  • 875 in x 1.500 in mounting hole fits standard panels
  • Operating range 32 to 100 °F suits marine environments

Marine Rocker Switch

The Hubbell Wiring Device-Kellems MR21SP is a DPST rocker switch designed for marine accessory circuits. It controls two separate poles with a single On/Off actuator. The black body and actuator suit dash or panel installations where a straightforward power control is required.

Boaters adding lights or horns

This switch suits 12 V DC accessory wiring such as navigation lights, deck lights or a horn. It is rated for 5 A at 12 V. Installers needing an AC-rated device, a different contact form, or an illuminated actuator should select another part.

0.875 in x 1.500 in mounting hole

The switch fits a rectangular cut-out measuring 0.875 in by 1.500 in. Terminals accept 0.250 in quick-connect tabs for fast, solderless wiring. Verify the panel cut-out and terminal style before ordering.

How it compares

Measured against everything we stock in Electrical Switches & Dimmers, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 89% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameHubbell Wiring Device-Kellems
Product typeLight Switch
Color and finishBlack
Color familyBlack

Questions about this item

What comes in the box with the MR21SP rocker switch and what must be purchased separately?

The switch itself is supplied. Quick-connect terminals accept 0.250 in tabs, so matching connectors or a wiring harness must be sourced separately for installation.

How do I choose between the available versions or capacities of this switch?

The MR21SP is a single DPST on/off model rated 5 A at 12 V DC with a 0.875 in by 1.500 in mounting hole; no alternative contact forms or current ratings are offered for this part number.

What does the 5 A at 12 V DC rating mean when the switch is installed in a vehicle circuit?

It indicates the switch can safely control accessory loads such as lights or a horn drawing up to 5 amps on a 12-volt system within the 32 to 100 °F operating range.

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