Grundfos MAGNA1 25-100 Variable Speed Circulating Pump

Description

The Grundfos MAGNA1 25-100 is a reliable, high efficiency circulating pump designed for heating systems with variable flow requirements. Its variable speed operation automatically adjusts pump performance to help maintain effective circulation while reducing unnecessary energy consumption.

With a maximum head of 10 metres, a compact 180 mm port to port length and 1 1/2 inch threaded connections, this single head pump is suitable for a wide range of domestic and light commercial heating installations. The straight forward controls and robust construction make it a practical choice for both home owners and heating professionals.

Key Features

Variable speed control
Adjusts pump output to suit changing heating system demand.

10m maximum head
Provides dependable circulation for suitable domestic and light commercial systems.

Energy conscious operation
Uses only the power required for the selected operating condition.

Compact 180 mm installation length
Designed to suit installations requiring a standard 180 mm pump dimension.

Simple installation format
Features G 1 1/2 inch threaded pipe connections and a PN10 pressure rating.

Built for heating systems
Suitable for circulating water across compatible heating applications.

Technical Specifications

Product type	Variable speed electronic circulating pump
Brand	Grundfos
Model	MAGNA1 25-100
Maximum head	100 dm / 10 metres
Power input	9-176 W
Rated voltage	1 x 230 V
Mains frequency	50/60 Hz
Maximum current	0.09-1.42A
Pipe connection	G1 1/2 inch threaded
Pressure rating	PN10
Port to port length	180 mm
Pumped liquid	Water
Liquid temperature range	-10°C to 110°C
Maximum operating pressure	10 bar
Ambient temperature range	0°C to 40°C
Enclosure class	X4D / IPX4D
Insulation class	F
Energy efficiency index	EEI 0.20
Pump housing	Cast iron
Impeller material	PES, 30% glass filled
Net weight	Approximately 4.41 kg
Approvals	CE, VDE, EAC, UKCA and additional regional approvals
EAN	5712608941870

Suitable Applications

Domestic heating systems
Suitable for compatible central heating and hydronic heating installations where dependable variable flow circulation is required.

Light commercial heating
A practical option for suitable smaller commercial systems requiring a compact, electronically controlled circulator.

Replacement pump projects
The 180 mm port to port length and G1 1/2 inch connections make it suitable for compatible replacement applications.

Installation note: Always confirm the required pump duty, connection size, installation length, system pressure and electrical requirements before purchase. Installation and electrical connection should be completed by a suitably qualified professional.

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