Delta Electronics

Delta Electronics VFD550B43A VFD-B Series AC Drive

SKU VFD550B43A

In stock
  • 12-month warranty
  • Free returns within 30 days

  • Manufacturer: Delta Electronics

  • Product No.: VFD550B43A

  • Country of origin:United States

  • Product Type: AC Drives

  • Payment: T/T, Western Union

  • Weight: 500g

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Designed for versatile industrial motor control, the Delta Electronics VFD550B43A is a robust, general-purpose AC drive belonging to the widely used VFD-B series. Engineered to manage demanding constant torque loads, this variable frequency inverter supports both open-loop sensorless vector and standard V/F control. This module provides a reliable solution for heavy-duty application requirements across diverse manufacturing sectors. Please note that the manufacturer has designated the VFD550CH43A-21 as the direct replacement control drive for this legacy model.

Features

  • Control Modes: Supports Open Loop Vector (Sensorless Vector) and V/F motor control.
  • Operator Interface: Features an integrated digital keypad for local configuration, parameter adjustment, and monitoring.
  • Braking Capabilities: Built-in DC injection braking support with provisions for an optional external dynamic braking transistor.
  • Enclosure Protection: Built to NEMA 1 and IP20 standards, ensuring protection against dry, non-corrosive environments.
  • Application Versatility: Capable of managing high constant torque output profiles across varying speed ranges.

Applications

  • HVAC systems, industrial fans, and blower controls.
  • Air and gas compressors.
  • Material handling conveyors, escalators, and crane gantries.
  • Pumping stations and wastewater treatment equipment.
  • Industrial woodworking machinery.

Technical Specifications

Manufacturer Delta Electronics
Part Number / Model VFD550B43A
Series VFD-B
Nominal Input Voltage 480 VAC
Input Voltage Range 380 to 480 VAC
Input Phase 3-Phase
Control Method Sensorless Vector, V/F Control
Braking Type DC Injection (Internal), Dynamic Braking (External Optional)
Enclosure Rating NEMA 1 / IP20
Replacement Model VFD550CH43A-21

Installation Guidelines

To ensure optimal thermal performance and compliance with industrial safety standards, adhere to the following installation parameters:

  • Mounting Orientation: Mount the AC drive vertically on a flat, non-flammable surface to allow unrestricted vertical airflow through the cooling heatsink.
  • Clearance Requirements: Maintain minimum specified clearance boundaries on all sides of the unit to prevent thermal buildup inside the enclosure.
  • Grounding & Shielding: Properly ground the drive chassis to the main electrical system ground bus. Use shielded motor cables to minimize electromagnetic interference (EMI) with adjacent control wiring.
  • Environmental Limits: Install in an environment free of moisture, oil mist, conductive dust, and corrosive gases.

FAQ

Has the Delta VFD550B43A AC drive been discontinued?
Yes, this model has been superseded by the VFD550CH43A-21 control drive. Please verify physical dimensions and parameter mapping before installing the replacement unit.

What control methods does the VFD550B43A support?
The VFD-B series drive supports V/F (Voltage/Frequency) control and Open Loop Vector (Sensorless Vector) control.

What is the environmental protection rating of this module?
The VFD550B43A has a NEMA 1 / IP20 rating, making it suitable for clean, dry indoor industrial environments.

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  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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