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Safety Trigger: The switch activates the trailer brake circuit when the plunger is removed.
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Independent Attachment: Attach the pull cable to the tow vehicle independently so it can pull cleanly during a separation event.
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Fit Check: Confirm the single-screw mount, 45 inch leads, and cable routing work with your trailer before installation.
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Cable Condition: Replace damaged, frayed, kinked, or missing pull cables before towing.
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Mounting Check: Confirm the single-screw mounting plate can be secured in a location that allows a straight cable pull.
Brand: Jammy
SKU: J-ELEC
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Before You Order
Match the part number, measurements and connection points that apply to your trailer.
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Fitment Check
Opening
Measure the existing roof or wall opening.
Flange
Confirm overall and flange dimensions.
Operation
Confirm powered, manual or fixed operation.
Mount / Power
Verify mounting and electrical requirements.
Product Details
Trailer Breakaway System / Emergency Brake Safety
Jammy Breakaway Switch with 48 Inch Coated Steel Pull Cable and 45 Inch Leads
Jammy J-ELEC breakaway switch for trailer emergency brake systems. Built with a 48 inch coated steel pull cable, zinc steel mounting plate, single-screw mount, and 45 inch wiring leads.
Part Number: J-ELEC48 Inch Pull Cable45 Inch Leads
Overview
The Jammy J-ELEC is a trailer breakaway switch with a 48 inch coated steel pull cable and zinc steel mounting plate. It is designed for breakaway brake systems where the switch plunger is pulled during trailer separation, triggering the trailer brakes through the breakaway battery circuit. Use this replacement switch where the mount style, lead length, wiring layout, and pull-cable configuration match your trailer setup.
R&P Service Insight
A breakaway switch is a small part with a major safety role. When the trailer separates from the tow vehicle, the pull cable removes the plunger from the switch so the breakaway system can apply trailer brakes.
Safety Trigger: The switch activates the trailer brake circuit when the plunger is removed.
Independent Attachment: Attach the pull cable to the tow vehicle independently so it can pull cleanly during a separation event.
Fit Check: Confirm the single-screw mount, 45 inch leads, and cable routing work with your trailer before installation.
R&P Knowledge Hub
Compatibility: Fits trailer breakaway applications where a J-ELEC style switch, single-screw mounting plate, 48 inch pull cable, and 45 inch leads match the existing setup.
Vehicle / System Fit: Intended for trailer breakaway brake systems using a battery-powered emergency brake circuit.
Installation Notes: One wire connects to breakaway positive power and the other wire connects to the trailer brake system. Verify your wiring layout before installation.
Performance Insight: When the plunger is removed from the switch, the trailer brakes are activated through the breakaway system.
Brand & Fitment Note
Selling Brand: Jammy
Application Reference: Trailer, electric brake, and breakaway system references in this listing describe application fitment only where the switch style, mount, lead length, wiring, and cable configuration match.
What This Means: This listing is for a Jammy J-ELEC breakaway switch with pull cable, not a complete breakaway battery kit unless specifically stated.
Before Ordering: Verify switch style, plunger style, lead length, mounting style, cable routing, and trailer brake wiring before installation.
R&P Repair Insight
Breakaway switch problems are often caused by damaged cables, missing plungers, corroded wiring, poor mounting, or incorrect routing. Replacing the switch is straightforward, but the emergency function depends on clean wiring and a cable path that can pull the plunger without snagging.
Cable Condition: Replace damaged, frayed, kinked, or missing pull cables before towing.
Mounting Check: Confirm the single-screw mounting plate can be secured in a location that allows a straight cable pull.
Brake Function Test: After installation or testing, make sure the plunger is fully reinserted and the brakes are not left engaged.
Features
Jammy J-ELEC Breakaway Switch
Replacement breakaway switch for trailer emergency brake systems using the J-ELEC configuration.
48 Inch Coated Steel Pull Cable
Includes a coated steel pull cable designed to remove the switch plunger during a trailer separation event.
Zinc Steel Mounting Plate
Built with a zinc steel mounting plate for single-screw installation.
45 Inch Wiring Leads
Equipped with 45 inch leads for connection into the trailer breakaway power and brake system wiring.
Trailer brakes activate when the plunger is removed from the switch
Fitment / Application
Category
Details
Vehicle / System
Trailer breakaway brake system
Primary Fit
Trailers using a compatible breakaway switch with single-screw mount and pull-cable plunger design
Secondary Fit
Breakaway battery systems requiring a switch with 45 inch wiring leads and 48 inch pull cable
Notes
Confirm mount location, lead length, pull-cable routing, plunger style, and wiring compatibility before ordering or installing.
Included Components
Quantity
Item
1
Jammy J-ELEC breakaway switch with 48 inch coated steel pull cable, zinc steel mounting plate, and 45 inch leads
Verify the breakaway switch style, mounting location, cable routing, lead length, wiring path, and trailer brake function before towing. Breakaway switches are emergency safety components; after testing, always confirm the plunger is fully reinserted and the trailer brakes are not left engaged.
