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“THE PUMP CONTROLLER IS PROGRAMMED IN A WAY THAT ONLY ONE FREQUENCY CONVERTER IS NECESSARY TO ENSURE AN EVEN FLOW.”

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OVERVIEW

NOLTA motor protection plugs offer optimal motor protection through:

Thermal overload protection

No overloading of motor and cable

Magnetic quick release

Fast and safe shutdown in the event of a short circuit

Integration in the plug

Saves costs because no additional space is required in the machine housing
Greater flexibility

Phase sequence control and phase inverter

Protection against incorrect motor rotation

Automatic or manual control

Connection for level controller or control line
Automatic restart

High short-circuit strength
(only with thermal-electromagnetic tripping)

No backup fuse required

Motor rated currents of three-phase motors

(Reference values for squirrel cage rotors)

The nominal currents apply to normal internally and surface-cooled three-phase motors with 1500 rpm.

Power (kW)
230V (A)
400V (A)
500V (A)
Power (PS)
5,5
20
11,5
8,7
7,5
0,25
1,3
0,8
0,6
0,33
7,4
26
15
11,5
10
11
39
22,5
17
15
0,8
3,6
2,1
1,55
1,1
0,37
2,1
1,2
0,9
0,5
1,1
4,7
2,7
2
1,5
1,5
6
3,4
2,7
2
0,55
2,7
1,6
1,2
0,75
2,2
8,5
4,9
3,7
3
4
15
8,6
6,5
5,5
3
11
6,4
4,9
4

Nolta motor protection plug for single and three-phase electric motors - cost-saving thanks to high flexibility in use and equipment with:

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  • Thermal and thermal/magnetic motor protection switches

  • On/off switch

  • Robust plastic housing

  • Combination with Schuko or CEE plug device

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