Mars Air Systems J0721 Air Door Controller Kit, Adjustable 6-Second–20-Minute Delay, Surface-Mounted Magnetic Reed Switch, 208–277V Single-Phase
SKU: J0721
$642.60
/each
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The Mars Air Systems J0721 is a solid-state controller kit for air curtains with a field-adjustable time delay from 6 seconds to 20 minutes.
- Includes an industrial metal surface-mounted magnetic reed switch.
- Designed for 208–277 V single-phase power and up to two 1/2 HP motors.
- The time delay keeps the air curtain on after the door closes.
Adjustable time delay
Field-adjustable from 6 seconds to 20 minutes; the delay keeps the air curtain on after the door closes.
Industrial magnetic reed switch
Uses an industrial metal surface-mounted magnetic reed switch for door activation.
Motor capacity
Rated for up to two 1/2 HP motors.
Electrical configuration
Designed for 208–277 V single-phase power.
Solid-state control
Solid-state controller package for automatic air curtain control.
NEMA 1 rating
Rated for NEMA 1 applications; field installation is by others.
Product type
Control package
Controller type
Solid-state
Time delay
Adjustable, 6 seconds–20 minutes
Voltage
208–277 V
Phase
Single-phase
Motor capacity
Two 1/2 HP motors maximum
Door switch
Industrial surface-mounted magnetic reed switch
Application rating
NEMA 1; field installed by others
Certifications & Compliance
Warranty & Protection
One-year parts warranty.
Frequently Asked Questions
The time delay is field adjustable from 6 seconds to 20 minutes.
The J0721 is specified for 208–277 V single-phase power.
It is rated for up to two 1/2 HP motors.
The kit uses an industrial metal surface-mounted magnetic reed switch.
The product has a one-year parts warranty.
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