Delta VFD185CP43B-21 CP2000 Fan/Pump Vector Control Drive

SKU VFD185CP43B-21

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Delta Electronics
Product No.: VFD185CP43B-21
Country of origin:United States
Product Type: Variable Frequency Drives
Payment: T/T, Western Union
Weight: 6000g
Dimensions: 7.48 in x 12.60 in x 7.48 in
Shipping port: Xiamen
Warranty: 12 months

Description

Designed specifically for energy-saving applications in air conditioning, heating, and water treatment systems, the VFD185CP43B-21 represents a high-efficiency variable frequency drive engineered for centrifugal fan and pump loads. This fan/pump vector control drive operates within the Delta CP2000 series, providing precise speed and torque management under varying flow requirements. By utilizing sensorless vector control (SVC) and auto-tuning modes, the module optimizes motor performance, reduces power consumption, and extends mechanical equipment life.

The unit features integrated PID control with feedback sleep and wake functions to regulate pressure and flow rates without requiring external controllers. Additionally, its hardware layout is optimized for wall-mount configurations in standard industrial enclosures, offering reliable thermal performance and robust electromagnetic compatibility in demanding motor control setups.

Features

Advanced sensorless vector control (SVC) and V/F control curves designed for variable torque loads.
Built-in PLC capacity up to 10k steps for decentralized process logic control.
Integrated MODBUS protocol via RS-485 communication interface.
Fire mode and bypass operations to maintain ventilation and fluid flow during emergency states.
Energy-saving tuning algorithms that automatically adjust output voltage based on load conditions.
Conformal coating on printed circuit boards (PCBs) to resist dust, moisture, and chemical corrosion.

Applications

Commercial HVAC air handling units and cooling tower fans.
Municipal water distribution and wastewater pumping stations.
Industrial ventilation, exhaust, and blowers.
Agricultural irrigation system flow control.

Technical Specifications

ManufacturerPart Number/ModelProduct SeriesApplicable Motor CapacityInput Voltage / PhaseRated Output CurrentInstallation TypeIP Protection LevelNEMA Protection LevelDimensions (W x H x D)Weight

Delta Electronics

VFD185CP43B-21

CP2000 Series

18.5 kW (22 HP)

460V AC, 3-Phase

38 Amps

Wall Mount

IP20

NEMA 1

7.48 in x 12.60 in x 7.48 in

6.0 kg

Installation Guidelines

Mount the drive vertically on a flat, non-flammable surface to facilitate natural convection.
Maintain a minimum clearance of 50 mm on both sides and 120 mm above and below the unit for optimal airflow.
Ensure the protective earth (PE) terminal is securely grounded to prevent electrical noise and safety hazards.
Use shielded motor cables and route control wiring separately from high-voltage power cables to avoid electromagnetic interference.

Compliance and Certifications

CE
UL
cUL

FAQ

What is the primary application for the Delta VFD185CP43B-21 drive?

The VFD185CP43B-21 is designed specifically for fan and pump applications, offering specialized features like energy-saving tuning, PID control, and fire mode for HVAC and water treatment systems.

What are the motor capacity and output ratings for this drive?

This drive supports an applicable motor capacity of 18.5 kW (22 HP) with a rated output current of 38 Amps on a 460V 3-phase input.

Does this model include built-in communication interfaces?

Yes, the drive includes integrated RS-485 with MODBUS communication protocol as standard, allowing easy integration into existing SCADA and PLC networks.

What protection ratings are associated with the VFD185CP43B-21?

The drive features an IP20 ingress protection rating and complies with NEMA 1 enclosure standards, making it suitable for clean, dry indoor industrial installations.

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Shipping & Returns

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.

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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Quantity

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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