Play manufacturer video for Mars Air Systems 99-014 Door Limit Switch, Plunger/Roller Type, Indoor, SPDT, 1 HP Max, 250V, 20A, NEMA 1Mars Air Systems 99-014 Door Limit Switch, Plunger/Roller Type, Indoor, SPDT, 1 HP Max, 250V, 20A, NEMA 1
The Mars Air Systems 99-014 is a combination plunger/roller door limit switch for indoor, remote-mounted NEMA 1 applications. It uses a single-pole, double-throw switch configuration with normally closed and normally open contacts.
The switch enables automatic air curtain control by turning the air curtain on when a door opens and off when the door closes. It has maximum ratings of 250 V, 20 A, and 1 HP.
- Requires less than 1/8 in of plunger travel and 2 lb of force to activate.
- Uses a 1/2 in FPT conduit connection, field wired by others.
- Includes two 11/64 in mounting holes.
- For air curtains within the switch electrical limits, a controller is not required.
Automatic air curtain control
Turns the air curtain on when a door opens and off when the door closes.
Combination plunger/roller actuation
Uses a combination plunger/roller mechanism for door limit switching.
SPDT switch configuration
Single-pole switch with normally closed and normally open contacts; normally closed and common terminals are provided with screws for wiring.
Electrical rating
Rated for a maximum of 250 V, 20 A, and 1 HP on one phase.
NEMA 1 application
Rated for indoor, remote-mounted NEMA 1 applications.
Low activation requirement
Requires less than 1/8 in of plunger travel and 2 lb of force to activate.
Field-wired conduit connection
Provides a 1/2 in FPT conduit connection for field wiring by others.
Mounting holes
Has two 11/64 in mounting holes.
Certifications & Compliance
Warranty & Protection
1 year parts warranty.
Frequently Asked Questions
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