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Qualitrol 141/146/148 Series and AKM 35600/47500 Pressure Control Switch Series

qualitrol 141 146 148 akm 346000 47500 pressure gauges

Designed to provide operating control, limit or alarm functions for transformers and load tap changers. Contacts can be factory set or adjusted as needed. The snap-action switch automatically resets when pressure returns to pre-set conditions. Pressure and/or vacuum switches can be combined on a common manifold and protected by optional enclosure. Optional pressure indicators (dial gauges) are available on select models.

Features

Reliable alarming for rising or falling pressure
Compact design is easy to install
Numerous configurations available for many applications
Available with cut off valve for field testing of switches
Tested and certified to be reliable
Reliable snap-action switch resets automatically – no manual reset is required
The single pole single throw (SPST) and single pole double throw (SPDT) switches are UL and CSA listed
Switches may be applied on systems using steam, air and other non-combustible gases
Pressure settings can be factory-set and/or adjustable by equipment manufacturer on select models
The high electrical rating of the snap-action switch often saves on the need for expensive relays

Options

Operating pressure or vacuum and operation on rising or falling pressure/vacuum
Up to 3 switches, switch testing port
Mounting style
AKM 35600 is available with 3 way lockable test valve for isolation of pressure switch during operation testing
Compact 146 series of switches mount in any orientation inside control panel as an integral components

Applications