...

320 – 327 Series Relay


The 327M 320, 1,2,3,4, 5M Series of electronic motor protection relays provide comprehensive protection for Medium and Low voltage motors. Adjustable dials for motor full load, unbalance current level, starts per hour and start stall or locked rotor time in seconds with descriptive LED fault indication, user selectable internal selector switches to enable or disable additional protection features. The 327M is ideally suited for motors operating at full load and occasionally beyond their limitations. Applications include motors driving crushers, ball mills or high inertia loads especially with long run-up starting times are ideal applications. Suited for operation in remote or rural sites were simple self-explanatory protection is required to ensure problem free operation

Description

Thermal overload protection (ANSI 50/51), running stall and jam protection, earth fault (50G) and short circuit protection along with selectable start attempt limitations (66) are features of the relay. A built in motor load current transducer is useful for indicating the % motor load through the 4-20mA loop.

Available in Amp calibration range from 0,8A to 1680A split over 320, 1, 2,3,4,5 Amperage selection bands. The 327M is the de-facto choice with motor full load current expressed as % calibration of the 1 amp or 5 amp secondary with the maximum load setting expressed as the M.F.L. current divided by the C.T. Ratio, multiplied by 100.

Additional information

Industry Requiring Motor Protection

Material Handling, Mills, Mining, Petro Chemical, Pulp and Paper, Refinery, Waterworks

Application

Aeration Fans, Centrifuge, Centrifuge Fans, Cranes, Fans, Induced Draft Fans, Material Handling Cranes, Overhead Cranes

Seraphinite AcceleratorOptimized by Seraphinite Accelerator
Turns on site high speed to be attractive for people and search engines.