Grundfos MAGNA1 D 50-60F Variable Speed Pump 240V 97924394 #2133/2627 USED

GRUNDFOS MAGNA1 D 50-60F – Twin-Head Flanged Variable-Speed Pump (97924394) #2133/2627

This listing is for a Grundfos MAGNA1 D twin-head wet-rotor circulator pump. MAGNA1 D combines the high energy efficiency of permanent-magnet synchronous motors with integrated frequency converters and a dual-head configuration, providing redundancy or parallel operation flexibility in heating and HVAC circulation systems.

MAGNA1 uses a maintenance-free canned-rotor wet-rotor design with integrated electronics. Setup and monitoring can be carried out via the onboard interfaces or wirelessly using Grundfos GO Remote.

Condition: supplied as a USED unit. The pump has previously been installed and tested; it may show signs of use consistent with its history.
Guarantee: supplied with our 6-month guarantee.

• Pump type: MAGNA1 D twin-head wet-rotor circulator
• Connection: DN50 flanged (PN6/10)
• Port-to-port length: 240 mm
• Electrical supply: 1 × 230–240 V, 50 / 60 Hz
• Motors: permanent-magnet synchronous (PM)
• Control: integrated frequency converters with user interfaces
• Communication: Grundfos GO Remote compatible

Need help confirming suitability?
Call us on 01803 220416 for technical advice.

Typical applications

• Heating systems and mixing loops
• Radiator and underfloor heating circuits
• Air-conditioning and chilled water systems
• Ground-source heat pump systems
• Small chiller and light commercial circulation duties

Manufacturer product page

Full technical specifications and performance curves can be viewed on the official Grundfos product page:
View Grundfos MAGNA1 D 50-60F (97924394) – Variant details

Frequently Asked Questions

What does the model number mean?

• MAGNA1 D – high-efficiency variable-speed twin-head wet-rotor circulator
• 50 – nominal connection size (DN50)
• 60 – hydraulic performance series / head class
• F – flanged connection version
• 240 – port-to-port installation length in millimetres

Why choose a MAGNA1 instead of a MAGNA3?

The MAGNA1 is intended for users who need a high-efficiency, reliable circulator without advanced BMS features. Compared with MAGNA3:

• MAGNA1 offers simpler setup and operation with lower cost
• Ideal where only basic control modes are required
• Still provides major energy savings via PM motor and integrated drive
• Includes fault relay and digital start/stop input

Choose MAGNA3 when you need:

• Advanced flow estimation and heat-energy monitoring
• Full building management communication (BACnet / LON)
• Multi-pump cascade and advanced control functions

For straightforward HVAC circulation where simplicity and efficiency are the priority, MAGNA1 is usually the better value choice.

Is the pump maintenance-free?

Yes. MAGNA1 uses a canned-rotor wet-rotor design with no mechanical shaft seal, eliminating routine seal replacement and providing very quiet operation.

How is the pump controlled?

The controller and operating panel are integrated into the pump. The pump can be:

• Set directly using the onboard user interface
• Monitored via the fault relay output
• Started and stopped remotely via the digital input
• Connected wirelessly using Grundfos GO Remote

What makes the motor efficient?

MAGNA1 uses a permanent-magnet synchronous motor controlled by an integrated frequency converter. This provides higher efficiency than conventional asynchronous motors and automatically adapts pump speed to match system demand.

About Our Stock

Stock code: #2133/2627
We specialise in supplying quality pumps and equipment. This used unit is inspected prior to dispatch and supplied with a 6-month guarantee.