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131B3743 Danfoss

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The Danfoss 131B3743 is part of the VLT FC 302 Automation Drives series and is rated for 20 HP or 15 kW using three phase power at 380 to 500 VAC. This drive features a coated PCB, IP21 protection level, graphical local control panel, and includes an RFI filter and brake chopper.

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Product Description:

The 131B3743 variable frequency drive is manufactured by Danfoss for the VLT FC 302 Automation Drives series. It sits between the mains supply and an induction motor to vary output frequency for controlled speed changes. That role helps reduce energy use and supports PLC coordinated operation on conveyors, pumps, and similar automated equipment across many industrial processes today.

The inverter accepts 380 to 500 VAC on a three phase power network and rectifies that input into a stable DC link. Its continuous rating is 15 kW, which is about 20 HP for motor sizing in service work. The enclosure meets IP21 / Type 1, and an RFI filter is included to limit conducted emissions in standard electrical rooms.

An integrated brake chopper handles regenerated energy by diverting it to an external resistor during deceleration or emergency stops. Operators can program the drive through the Graphical Local Control Panel, which provides a interface for setup and status review. The circuit boards are coated to help resist condensation in demanding environments.

Standard cable entries support cabinet routing, and the software release keeps the control platform current for commissioning tasks. The drive is supplied with no A option, no adaptation B hardware, and no C, C0, C1, or D options, while the standard language pack supports multilingual sites. Wake Industrial stocks this model, can arrange same day shipping for orders, keeps quotations valid for 30 days, and provides the chat tool available on the website for questions about type codes or fault codes.

A Option
No Option
Adaptation B
No adaptation
B Option
MCB-103 Resolver Option
Brake - Safe Stop
Brake chopper
C Option Software
No Software Option
C0 Option MCO
No C0 Option
C1 Option
No C1 Option
Cable Entries
Standard
D Option
No D Option
Horse Power
20 HP
Language Pack
Standard
LCP
Graphical Local Control Panel
Mains Voltage
380 - 500 VAC
PCB Coating
Coated
Power Phase
Three Phase Power
Power Rating
15 KW
Product Group
VLT AutomationDrive FC
Protection Level
IP21 / Type 1
RFI Filter
RFI Filter
Series Identifier
302
Software Release
Latest Release

Frequently Asked Questions about 131B3743:

Q: What kind of power supply does the 131B3743 VLT FC 302 require?

A: The 131B3743 VLT FC 302 operates on a three-phase power supply.

Q: What is the acceptable mains voltage range for the 131B3743 drive?

A: This model supports a mains voltage input range of 380 to 500 VAC.

Q: How much horsepower does the 131B3743 VLT FC 302 provide?

A: The 131B3743 is rated at 20 horsepower for output power.

Q: What type of local control panel is provided with the 131B3743?

A: A graphical Local Control Panel is included for user operation.

Q: What protection rating does the 131B3743 VLT FC 302 offer?

A: The 131B3743 features an IP21 / Type 1 protection level for its enclosure.


Internal Product Review

  • ‘‘The 131B3743 is a Danfoss VLT FC 302 Automation Drive designed for demanding industrial motor control, providing 20 HP output and 15 kW power rating. It features a built-in brake chopper and MCB-103 Resolver Option for precise feedback and safe stop operation. The drive's IP21 protection and coated PCB ensure durability in typical automation environments.’’

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