Technical Data - Grundfos CU 301 Notice D'installation Et De Fonctionnement

8. Technical data

Supply voltage
1 x 100-240 V - 10 %/+ 6 %, 50/60 Hz, PE.
Power consumption
5 W.
Back-up fuse
Maximum 16 A.
Current consumption
Maximum 130 mA.
Mains borne signalling
Frequency shift keying (FSK).
(132.45 kHz, ± 0.6 kHz).
Enclosure class
IP55.
Type 3R
Maximum length between CU 301 and pump
300 metres.
Ambient temperature
• During operation: -30 to +45 °C
The product must not be exposed to direct
sunlight.
• During storage: -30 to +60 °C.
Weight
1.35 kg.
Relative humidity
Maximum 95 %.
Materials
The CU 301 box is made of black PPO.
EMC (electromagnetic compatibility)
According to EN 60730-1.
Pollution degree
Category 2
Basic insulation
Category 3
Control type action
Type 1
Software control function
Class A
Operating relay
Maximum current: 0.5 A.
Maximum voltage: 230 VAC.
24
Dimensional sketch
232
bar
5.0
4.5
4.0
3.5
3.0
2.5
2.0
104.5
Fig. 21
Sensor input
Voltage signal:
0-10 VDC / 2-10 VDC, R
Tolerance: ± 3 % at maximum voltage signal.
Screened cable is recommended.
Maximum cable length: 500 m.
Current signal:
DC 0-20 mA / 4-20 mA, R
Tolerance: ± 3 % at maximum current signal.
Screened cable is recommended.
Maximum cable length: 500 m.
114
104.5
= 11 kΩ.
i
= 500 Ω.
i