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132H2243 Danfoss

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The Danfoss 132H2243 is part of the MCD Soft Starters series and supports three phase power with a current rating of 448 Amps. It has a rated insulation voltage of 690 V AC and comes with an IP00 enclosure. The unit provides an analog output load of 600 Ohms and a relay output rated at 10 Amps for 250 V AC.

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Product Description:

The 132H2243 is a soft starter manufactured by Danfoss within the MCD Soft Starters series. Installed between the line supply and a three-phase induction motor, it controls voltage ramps to limit mechanical stress and reduce inrush current during startup. This approach helps reduce belt shock, pressure surges, and sudden torque transfer during motor acceleration. Its control interface allows direct connection to PLC outputs, making the unit suitable for automated pump, fan, and compressor panels.

The power stage is rated for a continuous motor line current of 448 A, giving the starter capacity to energize medium-power motors without exceeding semiconductor limits. Its SCR stack tolerates impulse overvoltages up to 6 kV, while the control board requires only 24 V DC, 8 mA to enable soft-start functions. The enclosure carries an IP00 rating, so it must be installed in a protected cabinet. For applications assessed under NEMA tables, the heavy-duty current capability is 335 A, supporting repeatable starts in high-inertia machinery. Soft-start control can also reduce line disturbances during startup and limit abrupt load changes on connected equipment. Because the unit does not include an internal bypass contactor, an external contactor can be used when continuous full-speed operation is expected to reduce thermal loading.

Mechanical integration follows frame size 2, and the line lugs are tightened to 66 Nm to maintain low-resistance joints. The starter’s insulation system is qualified for networks up to 690 V AC, so it can be wired to 400 V or 575 V three-phase power without modification. Under normal-duty NEMA service, the permissible line current is 354 A, a figure used for enclosure heat calculations after acceleration. A changeover relay rated at 10 A at 250 V AC provides status signaling to control circuits, and a 0–20 mA analog output can drive loads down to 600 Ω for remote monitoring of motor conditions. These signals can be used by supervisory controls for run status and trend monitoring.

Analog Output Load
600 Ω
Bypass
Without Int. Bypass Contactor
Current Rating
448 A
Frame Size
2
Impulse Withstand
6 kV
Input Rating
24 V DC, 8 mA
Ip Rating
IP00
Nema Heavy Current
335 A
Nema Normal Current
354 A
Phase Power
Three Phase Power
Power Terminal Torque
66 Nm
Product Group
VLT Soft Starter MCD
Rated Insulation Voltage
690 V AC
Relay Output Rating
10 A @ 250 V AC

Frequently Asked Questions about 132H2243:

Q: What is the current rating of the Danfoss 132H2243 soft starter?

A: The 132H2243 soft starter handles a current rating of 448 A, supporting high-power industrial loads.

Q: Does the 132H2243 soft starter feature an internal bypass contactor?

A: This model does not include an internal bypass contactor.

Q: What is the rated insulation voltage of the Danfoss 132H2243?

A: The rated insulation voltage for this soft starter is 690 V AC.

Q: What phase power configuration does the Danfoss 132H2243 support?

A: The 132H2243 soft starter is designed for three phase power applications.

Q: What level of ingress protection does the Danfoss 132H2243 offer?

A: This model carries an IP00 protection rating, meaning it does not provide ingress protection against dust or water.


Internal Product Review

  • ‘‘The 132H2243 from the Danfoss MCD Soft Starters series is a three-phase soft starter with a 448 A current rating and a rated insulation voltage of 690 V AC. This model features an IP00 enclosure and does not include an internal bypass contactor. High impulse withstand capability of 6 kV makes it suitable for demanding industrial environments.’’

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