It features a standard 48-frame diameter and is rated for 208-230V single-phase applications

and commercial air handlers where quiet

Quick Installation: Standard 460V

What is the maximum pressure rating for this liquid level gauge

the 93-7B-HD is the head mechanism only

Trane SWT3209 Switch 321702-401 It features a standard 48-frameThe Trane SWT3209 is a heavy duty high pressure cutout switch designed for critical safety monitoring in commercial HVAC systems. This SPST manual reset switch is engineered to protect the compressor and refrigerant circuit by opening the electrical circuit when internal pressures exceed safe operating limits. Specifically rated for high pressure applications, the SWT3209 features a factory calibrated 650 PSI open setpoint and a 500 PSI close