


Dwyer Instruments TR-7-AL |Ground Continuity Control with 36" cable | Stud type contactor with pilot lights
The operational temperature range of the Dwyer TR-7-AL Safe-T-Ground component is -13 to 104°F (-25 to 40°C). It uses 1.75 watts without lights and 7.75 watts with them, requiring 105–125 VAC 60 Hz power. The housing is explosion-proof for use in dangerous environments and is composed of 356-T6 cast aluminum alloy. It employs conduit connections that are 3/4" NPT and has a DPDT, 10 amp, 125 VAC, 60 Hz contact rating. These measurements are 6-5/8" W x 10-3/8" H x 5-5/8" D, and they come with 7/16" mounting lugs to facilitate installation. It contains two grounding studs and a terminal strip for wiring.The contactor has a 16-2 type SO coiled cable that can retract to 3' and stretch to 16'. It is constructed of molded polyethylene and has beryllium copper contact clips.

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- Specifications
- Features
- Downloads
Component | Ground Control |
Connection | Conduit: 3/4" NPT |
Current Rating | DPDT, 10 amps, 125 VAC, 60 Hz contact rating |
Housing | 356-T6 cast aluminum alloy (copper free), explosion-proof - Class I, Group D |
Installation | 7/16" mounting lugs, integrally cast |
Manufacturer | Dwyer Instruments |
Power | 105-125 VAC 60 Hz 7.75 watts - with light, 1.75 watts - without lights. Optional 220-240 VAC, 50/60 Hz |
Size | 6-5/8" W x 10-3/8" H x 5-5/8" D |
Supply Voltage AC | Instrument Sensor: 105-125 VAC |
Supply Voltage AC | Instrument Sensor: 220-240 VAC |
Temp Range | Instrument Sensor: -13 - 104°F/-25 - 40°C |
Temperature | Temperature Limits: -13 to 104°F (-25 to 40°C). |
Weight (for shipping) | 20 lb with contactor and cord |
- Housing that is safe against explosions.
- An audible alert and LED status lights.
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