Original Installation And Operating Instructions 12.4 Cable Requirements; Technical Data; Operating Conditions; Supply Voltage - Grundfos CMBE Instructions Manual

12. Technical data

12.1 Operating conditions

12.1.1 Maximum total head
Pump type
CMBE 1-44
CMBE 3-62
CMBE 3-93
CMBE 5-62
CMBE 10-54
12.1.2 Pressure
Min. inlet pressure (relative)
without pressure switch
Min. inlet pressure with
pressure switch
Max. outlet pressure
Max. operating pressure
12.1.3 Ambient temperature during storage and
transportation
-30 to +60 °C.
12.1.4 Ambient temperature during operation
-20 to +50 °C.
The motor can operate with the rated power output
(P2) at 50 °C, but continuous operation at higher
temperatures will reduce the expected product life. If
the motor is to operate at ambient temperatures
between 50 and 60 °C, an oversized motor must be
selected. Contact Grundfos for further information.
Related information
4.3 Installation altitude
12.1.5 Liquid temperature
0-60 °C.
Heat protection:
> 80 °C: The pump will stop.
< 50 °C: The pump will start automatically.
12.1.6 Sound pressure level
≤ 55 dB(A).
12.1.7 Start/stop frequency
Max. 100/h.
22
Max. head [m]
44
62
93
62
54
[bar] [MPa]
-0.1 -0.01
1 0.1
10 1
10 1

12.2 Supply voltage

1 × 220-240 V -10 % / +10 %, 50/60 Hz -2 % / +2 %,
PE.

12.3 Overload protection

The overload protection of the E-motor has the same
characteristic as an ordinary motor-protective circuit
breaker. As an example, the E-motor can stand an
overload of 110 % of rated current for 1 minute.
12.4 Cable requirements
DANGER
Electric shock
Death or serious personal injury
‐
Comply with local regulations as to
cable cross-sections.
‐
Use the recommended fuse size.
1 × 200-230 V
Power [kW]
0.25 - 2.2 1.5 - 2.5
Conductor types
Stranded or solid copper conductors.
Conductor temperature ratings
Temperature rating for conductor insulation: 60 °C
(140 °F).
Temperature rating for outer cable sheath: 75 °C (167
°F).
Cross-section
2
[AWG]
[mm ]
16-12