CH-PUMP-045-380 Pump control cabinet 45 kW 380 V

Wall-mounted cabinet for a 45 kW pump on a 380 V supply. At this rating we use an Eliton MKN 1284 enclosure, 1200x800x400 mm, IP54, with a separate cooling unit: the drive dissipates 2-3% of its rating and that heat has to go somewhere.

What is inside

• Veichi AC310 variable frequency drive, article AC310-T3-045G/055P: 45 kW, 380 V input, 90 A rated current, built-in PID regulator
• Schneider Electric three-pole input circuit breaker, 160 A
• Enclosure: Eliton MKN 1284, 1200x800x400 mm, IP54, wall mounting, painted steel
• Cooling: forced ventilation 500 m3/h with a thermostat
• Installation kit: DIN rails, slotted cable ducts, power and signal wiring, cable glands, start and stop buttons, door status lights
• Drive parameters set for the motor, circuits labelled, and the cabinet tested before dispatch

What holds the pressure

An analogue 0-10 / 0-16 bar pressure sensor (4-20 mA, G1/2 thread) and a dry-run relay are part of the base build. Pressure is held by the drive's built-in PID regulator: the sensor feeds the 0-10 V or 0(4)-20 mA analogue input, and the drive trims the speed to the setpoint on its own. Start and stop thresholds are set on our bench. Minimum speed too. There is a sleep mode as well (parameters F13.29-F13.33): once the PID output frequency stays below a set threshold for longer than the sleep delay, the drive stops the pump. It restarts as soon as pressure drops by a set deviation from the setpoint. That only works with a hydro-accumulator. Without one the pressure is gone the moment the pump stops, and it will short-cycle.

Options on request

• an output motor choke when the motor cable runs longer than 30-50 m
• a braking resistor for fast stops and high-inertia loads
• a three-contactor mains/drive bypass with mechanical and electrical interlock
• a remote operator keypad on the cabinet door
• an outdoor package: enclosure heater, second thermostat, rain hood

These are agreed separately. Write to us if the build has to change and an engineer will price the exact scope for your site, while the standard article number stays as it is, so a modified cabinet is quoted as its own line.

Lead time, warranty, documents

Build time is 7-10 working days. The clock starts at order confirmation. The assembled cabinet carries a 24-month warranty under the store's general warranty terms, and a wiring diagram plus a list of installed components ship with it, because there is no separate operating manual for the series: the build changes from order to order. We assemble the cabinet at our premises, parameterise it, run it under load. We do not travel to site. Your electrician wires it up and starts it. We support that remotely.

Other sizes and the neighbouring series: pump control cabinets and the full control-cabinet catalogue.