Mars Air Systems J0704 Air Door Control Package, Adjustable 6s-20min Delay, Surface-Mount Magnetic Reed Switch, 2 Motors Max, 208-277V

SKU: J0704
$487.20
/each
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The Mars Air Systems J0704 is a commercial solid-state control package for air curtains. It provides an adjustable 6-second to 20-minute time delay, a commercial plastic surface-mounted magnetic reed switch, and control for up to two 1/2 HP motors on 208–277 V, single-phase power.

The adjustable delay can keep the air curtain on after the door closes. The included commercial magnetic reed switch is surface mounted and has a plastic construction.

  • Adjustable delay: Field adjustable from 6 seconds to 20 minutes.
  • Motor capacity: Supports up to two 1/2 HP motors.
  • Door switch: Commercial plastic surface-mounted magnetic reed switch.

Adjustable time delay

The time delay is field adjustable from 6 seconds to 20 minutes and keeps the air curtain on after the door closes.

Surface-mounted magnetic reed switch

Includes a commercial plastic surface-mounted magnetic reed switch with normally open and normally closed contacts.

Two-motor capacity

Rated for up to two 1/2 HP motors.

Single-phase operation

Designed for 208–277 V, single-phase power.

Solid-state controller

The J0704 is identified as a solid-state control package for air curtains.

NEMA 1 rating

The control package is rated for NEMA 1 applications and is field installed by others.

Product type Control package
Controller type Solid-state
Voltage 208–277 V
Phase Single phase
Time delay Adjustable, 6 seconds–20 minutes
Motor capacity 2 × 1/2 HP maximum
Door switch type Commercial surface-mounted magnetic reed switch
Door switch construction Plastic
Door switch voltage rating 24 VAC maximum
Door switch current rating 1/2 A maximum
Door switch contacts Single-pole, normally open and normally closed
Maximum magnetic gap 1/8 in

Certifications & Compliance

Certified badge of UL Certified
UL Certified

Warranty & Protection

1-year parts warranty.

Frequently Asked Questions

The time delay is field adjustable from 6 seconds to 20 minutes.
It uses a commercial plastic surface-mounted magnetic reed switch.
It is rated for up to two 1/2 HP motors.
The authoritative product specifications list 208–277 V, single-phase power.
Yes. The delay is field adjustable from 6 seconds to 20 minutes.

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