Startup; Technical Data; Electrical Data; Supply Voltage - Grundfos CU 3 Serie Instrucciones De Instalación Y Funcionamiento

7. Startup

Startup must be carried out by an authorised person.
Warning
Prior to startup, read the installation and
operating instructions for the product in
question.

8. Technical data

Transient voltages typically present on the mains
supply are category 2.
Altitude above sea level
Maximum 2000 m.
Ambient temperature
• During operation: -20 to +60 °C
(must not be exposed to direct sunlight).
• In stock: -20 to +60 °C.
• During transportation: -20 to +60 °C.
* At temperatures below 0 °C, the display may
react slowly.
Relative air humidity
5 to 95 %.
Enclosure class
IP1X.
For indoor use only.
Pollution degree
External pollution degree 3.

9. Electrical data

9.1 Supply voltage

1 x 100-240 VAC ± 10 %, 50/60 Hz, PE
(Class 1 equipment).

9.2 Power consumption

Maximum 22 W.

9.3 Circuit breaker

Installation of circuit breakers must be done in
accordance with local regulations.

9.4 Backup fuse

Maximum 10 A. Both standard fuses as well as
quick- and slow-blow fuses are suitable.
12

9.5 Short-circuit protection

Use fuses that comply with IEC 60127.
USA and Canada (branch circuit protection):
Use a UL/CSA-listed non-time delay (high capacity)
fuse that complies with the UL248 series or an
inverse time circuit breaker that complies with
UL489.
Fuse types RK1, RKS, J and CC are acceptable.

9.6 Digital inputs

Open-circuit voltage
Closed-circuit current
Frequency range

9.7 Analog inputs

Input current and voltage
Tolerance
Repetitive accuracy
Input resistance, current
Input resistance, voltage
Supply to sensor

9.8 Digital outputs (relay outputs)

Normally open contacts
Maximum contact load
Minimum contact load

9.9 Conductors

Rigid conductors
Flexible conductors without
ferrule
Flexible conductors with
ferrule
With/without plastic collar

9.10 USB port

USB port
24 VDC
5 mA, DC
0-4 Hz
0-20 mA
4-20 mA
0-10 V
± 3.3 % of full scale
± 1 % of full scale
< 250 Ω
> 50 kΩ ± 10 %
24 V, 30 mA,
short-circuit
protected
C, NO
240 VAC, 2 A
5 VDC, 10 mA
2
0.5 - 2.5 mm
20-13 AWG (US)
2
0.5 - 1.5 mm
20-13 AWG (US)
USB 2.0, type B