Grundfos CRE Series User Manual

The 250V contacts of the alarm relays of these devices must not be connected directly to the supply
mains, but energized by an isolated power supply or transformer with galvanic isolation.
NC
C1
NO
NC
C2
NO
RJ45
DI3
24V AI2
5V
TX RX
DI4
PT2
PT1
LT1
LT2
S24 ST1 ST2
AO1
AI3
DI2
OFF ON
A
Y B
AI1
DI1
24V
5V
TM082862
Terminal Type Function
NC Normally closed contact
Signal relay 1: LIVE or SELVC1 Common
NO Normally open contact
NC Normally closed contact
Signal relay 2: SELV onlyC2 Common
NO Normally open contact
RJ45 Ethernet Ethernet communication
GND GND Signal ground
DI3 DI3/OC1
Digital input/output, configurable
Open collector: Maximum 24 V resistive or inductive
24V +24 V Power supply
AI2 AI2
Analog input:
• 0-20 mA or 4-20 mA
• 0.5 - 3.5 V, 0-5 V or 0-10 V.
22
English (GB)

Grundfos CRE Series Specifications

General

Motor Type	Asynchronous
Enclosure Class	IP55
Insulation Class	F
Series	CRE
Protection Class	IP55
Material	Stainless Steel
Applications	Water Supply, Pressure Boosting, Irrigation
Pumped liquid	Clean liquids
Approvals	CE
Voltage	380-415V
Connection Size	DN 32 to DN 100
Efficiency	IE3 Premium Efficiency
Power Supply	3-phase
Liquid Temperature Range	-10°C to +120°C
Temperature Range	-10°C to +120°C