Relay Transbrake Lockout Circuit

$179.00$199.00 (USD)

Prevent inadvertent use of the transbrake once your car has been launched with MGI’s Relay Transbrake Lockout Circuit.

  • Lock out your transbrake after the transbrake pushbutton has been pressed once and released.
  • Reset the lockout circuit by turning the arming switch OFF and back ON.
  • Relays come with built-in flyback diodes.
  • For transbrake solenoids rated up to 5A at 12vDC: Choose the 3-relay controller.
  • For larger solenoids rated up to 15A: Choose the 4-relay controller.
  • Optional spiral-line momentary pushbutton and arming switch.
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    Reset options

    Choose a fuse with 3x the amperage rating of your transbrake solenoid

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BULK ORDERS – please contact support@mgispeedware.com for availability.
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Description

With it’s ease of use and driver-safety design, MGI’s relay controller is the BEST TB-lockout on the market.

3 vs 4 relay controllers
the right lockout controller depends on your transbrake solenoid

transbrake relay circuit

3 Relay Transbrake Lockout Circuit (TRTLC)

Operate a transbrake rated up to 5A
  • Controller rated 10A
  • Dimensions: 5.5″L x 4.125″W x 3″D
  • Requires a momentary pushbutton or Microswitch that is rated minimally 10A
transbrake relay circuit

4 Relay Transbrake Lockout Circuit (FRTLC)

For a larger transbrake rated up to 15A
  • Controller rated 30A
  • Dimensions: 5.625″L x 3.325″W x 2.875″D
  • Requires a momentary pushbutton or Microswitch that is rated minimally 1A
  • Your choice of built-in fuse: 15A, 20A, 25A, 30A, 35A, or 40A

The selected fuse should be 3x the rating of your transbrake amps. (applies only to the FRTLC)

How To Use
Simply arm, engage, and release your transbrake – but only once!

STEP 1 – Arm Your Transbrake

To arm the transbrake, turn on the transbrake arming switch. At this point, the transbrake push button is live.

STEP 2 – Hold and Launch

With the transmission in 1st gear, press and hold the transbrake pushbutton to engage the transbrake. Release the pushbutton to launch.

STEP 3 – Reset the Circuit

Once the pushbutton has been pressed and released one time, the pushbutton will no longer function until the transbrake arming switch has been turned off then back on (causing the circuit to reset).

Installation
How to wire the transbrake lockout circuit

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Before finalizing your purchase

It is important to familiarize yourself with the MGI panel Installation Manual. Not only does this help you to select the appropriate options for your race panel, it will enable you to tackle any troubleshooting issues with confidence.