Grundfos CMB 3-47 I C A D C A

Quick Overview

  • Product Code: 97530054
  • CMB: Pump range
  • 3: Rated flow rate (at 50 Hz [m3/h])
  • 47: Max head [m]
  • I: Materials (see below description)
  • C: 1 x 220-240 V, 50 Hz
  • A: Standard motor (IP55)
  • D: 1.5 m cable without plug
  • C: PM 2 controller
  • A: RP 1" suction & discharge
Check the datasheets in the downloads tab below for comprehensive information before you order
Please ensure you are ordering the correct pump/phase as restocking charges may apply. Please call us on 01322 292 415 to check current delivery times.
Excl. Tax: £569.00 Incl. Tax: £682.80
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The CMB 3-47 I C A D C A stainless steel fixed speed pressure booster pump from Grundfos is designed for pumping clean water from a cold water storage tank. CMB 3-47 I C A D C A pump is supplied complete with a pre wired PM2 Pressure Manager.


The CMB booster pumps are factory commissioned and require only to be connected to an electrical supply and a cold water storage tank. The Grundfos CMB fixed speed pump operates within the flow and pressure range of the selected pump. When the PM2 Pressure Manager is set in default mode, the pump set will automatically switch on when flow is required. The unit will operate at a duty dictated by the system conditions and then switch off at a no flow condition.


Technical Data

  • Mains voltage: 1 x 220-240 V, 50 Hz
  • Voltage tolerances: -5%/+5%
  • Enclosure / Class IP55 / Class F
  • Casing pressure: 10 bar max
  • Liquid temperature: 0°C to +40°C
  • Ambient air temperature: 0°C to +50°C
  • Sound pressure level: < 70 dB(A)

PM2 Controller 

  • Cut-in pressure - Adjustable
  • Power-on indication
  • Pump-running indication
  • Dry-running protection
  • Pressure gauge (reading)
  • Leakage detection
  • Pipe burst indication
  • Auto restart
  • Settings for operation with diaphragm tank possible


  • Sleeve: EN 1.4301/AISI 304
  • Pump shaft: EN 1.4301/AISI 304
  • Impellers/chambers: EN 1.4301/AISI 304
  • Pressure Manager: PP 30GF
  • 5-way valve: EN 1.4301/AISI 304

Product Attachments

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