hvac relay switch for sale, brand-new and used.

The D8129 is suitable for applications requiring Form "C" relay to operate auxiliary systems or to display fire system status at remote annunciators. Building components such as HVAC, door lock releases, and stairwell pressurization can be interfaced with the D8129 for complete system control and monitoring. Industrial, commercial, and institutional facilities are typical installations for the D8129 module.

Supco SPP8E E Series Electronic Potential Relay style Hard Start Kit, Greater than 1 Horsepower Range, 189-227F Capacitor Size: Product details: Electronic potential relay for starting motors Two-wire connection for installation Back-up electronic timing circuit to protect the compressor Voltage-sensing capability UL recognized for safety and NATE certified for HVAC applications.

BUTTERFLY HVAC VALVE 4" EPDM SEAT 8 LUG CAST IRON 24vac actuator 175psiF.O.B.: Chandler, AZ 85246, Valves are new. Questions: contact Dick (602) 369-5522 VF Series Standard-Pressure, Standard-Temperature Butterfly Valves are specifically designed for a wide range of Heating, Ventilating, and Air Conditioning (HVAC) applications, including two-position

Brand New!! SD200-001 INTELLIGENT MASTER SENSORThe SD200-001 is the master sensor for the HVAC Energy Management System. This sensorfeatures a changeover relay contact output to control the operation of HVAC device according to theoccupancy status of the room.

Deep Vacuum Pump Control Switch Actuator 15-29"Hg10A AC Automation Workshop/Lab

You are bidding on one WattStopper CI-205 +24vdc Pir Passive Occupancy Sensor Infrared Motion Detector This item was removed during a tenant improvement under working conditions. B277E-P Power Pack Relay The Power Pack provides 24 VDC operating voltage for the models CX-100 and CI-200 occu

The Lotoons Store NEW WattStopper DT-200 Motion Sensor 360 Degree Dual Tech Wall Occupancy Sensor 24V - White

Radonics D7412G- SpecificationsPrimary: 16.5 VAC 40 VA class 2 plug-in Transformer (D1640) Voltage Input (Power Supply)Secondary: Sealed lead-acid rechargeable (12 VDC, 7 Ah or 12 VDC, 17.2 or 18 Ah) battery.

Used Working Crestron AV–3 Integrated Control System. Certified   Working item removed from Working College environment   Another fine used electronic product brought to you by mrfixit- quality used electronics   You are bidding on a Used Crestron AV3 Integrated Control System in perfect new Crestron Certified working condition.  This unit was professional removed from a local college.

ARCHITECT AND ENGINEER SPECIFICATIONS  Four (4) models available  Addressable and conve

The 2364-211 Pneumatic Electric Relay is used in control systems requiring conversion of gradual air pressure changes to positive electrical switching actions. Typical applications are starting/stopping unit ventilators, fan coil motors, unit heaters, and air handling unit fans. These relays incorporate a nonmetallic diaphragm that is displaced by air pressure changes.

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8-Port Remote Ethernet I/O Sensor Controller Switch - Web Control With Scheduler 8-Port Remote Ethernet I/O Sensor Controller Switch - Web Control With Scheduler

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The Model LD1-24 and the AQS models are small electronic control relays for detecting a rising water level in HVAC and Building Automation System, BAS, applications. Inside a waterproof enclosure, the water level detector features a medium-power relay, which is operated by water reaching the trip level, and can be used to control alarms or other equipment. The relay is normally energized when the power supply is switched on and no water is present.

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New Cooper Lighting SP20-MV Greengate Switch Pack; 20 Amp, 120/277 Volt AC, 50/60 Hz. Package is new and sealed. Product Details: