Grundfos ALPHA1 L Series User Manual

English (GB)
11
5.5.3 Cables and plugs
The pump has two electrical connections: the power supply and
the control signal connection.
Power supply connection
The installer plug is both supplied with the pump and available as
an accessory.
Power cable adapters are also available as accessories.
Control signal connection
The control signal cable connection has three conductors: the
signal input, the signal output and the signal reference. Connect
the cable to the control box by a mini superseal plug. See section
7.1 Setting the PWM input signal. The optional signal cable is
available as an accessory.
Fig. 10 Mini superseal plug
TM06 58210216
Product Product description
Length
[mm]
Product
number
Installer plug 99439948
Mini superseal signal cable (PWM input signal) 2000 99165309
Superseal power cable 2000 99198990
Power cable adapter: Superseal Molex cable
adapter, overmoulded
150 99165311
Power cable adapter: Superseal Volex cable
adapter, overmoulded
150 99165312

Grundfos ALPHA1 L Series Specifications

General

Pump Type	Circulator
Series	ALPHA1 L
Max Head	6 m
Voltage	230 V
Frequency	50/60 Hz
Liquid Temperature Range	2°C to 110°C
Max Operating Pressure	10 bar
Insulation Class	F
Enclosure Class	IP42
Application	Heating systems
Control Modes	Proportional pressure, constant pressure
EEI	0.20
Material	Cast iron
Power Input	Varies by model (e.g., ALPHA1 L 25-40 180: 3-22 W)
Pipe Connection	G 1 1/2