Red Jacket ISOTROL™ Control Box


Red Jacket® ISOTROL™ Control Box

The Red Jacket® ISOTROL™ 1-8 Control Box is the most versatile dispenser handle signal isolation system available. It provides a means to remove all external voltage sources, including feedback, during periods of maintenance and service of the dispensing equipment to meet NEC requirements.

Read more$496.00 $379.44

Out of stock

$403.00 $308.30

2 in stock

SKU: ISOTROL 1-8 Categories: , ,


The Red Jacket® ISOTROL™ 1-8 Control Box isolates handle signals between each dispenser and protects against wiring shorts and phasing issues. It is available with or without a built-in 30-amp 2HP rated relay.

  • ISOTROL™ 1-8 units without the relay are designed for use with the TLS-450PLUS or another component for motor control – IQ, standard control box or three phase magnetic starter and will accept up to eight individual dispenser signals.

  • ISOTROL™ 1-8R units with the relay bypass an ATG to activate one pump and will accept up to eight individual dispenser signals. They can also be utilized to activate a second pump in manifolded applications.

  • Isolates the handle signals between each dispenser.

  • Isolates and protects individual dispensers from wiring shorts or phasing issues.

  • Isolates and protects technicians from dangerous feedback during service.

  • Ready interface with the Red Jacket® IQ Control Box and/or the TLS-450PLUS.

  • Compliant with NEC requirements for handle isolation.

  • Accepts up to eight individual dispenser signals.

  • If ordered without relay, it must be used with another component for motor control.

  • Dedicated Automatic Tank Gauge (ATG) line leak output and coil for easy compatibility with Pressurized Line Leak Detection (PLLD).

  • Terminals are labeled for easy wiring and compatibility.

  • May be used with all Red Jacket and competitive submersible turbine pumps.

  • Easily retrofitted to existing locations.


Type 1 enclosure, 6”x6”x4”

DISP Inputs

10 mA @120V or 240V 50/60 Hz

Control Circuit

15 mA @ 120V 50/60 Hz or 240V 50/60 Hz

ATG Output

750 mA @ 120V or 240V 50/60 Hz

Control Relay

30A DPST 120/240VAC 50/60 Hz



14-28 AWG

10-18 AWG Main

Additional information

Weight 8 lbs
Dimensions 12 × 12 × 4 in


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