NPBU-42C 64011821D ABB Branching Unit

ABB

NPBU-42C 64011821D ABB Branching Unit ACS 600 / ACS 800

SKU: NPBU-42C

In Stock

Dimensions: 26.4 x 9.5 x 5 cm
Country of origin: Sweden
Payment: T/T, Western Union
Shipping port: Xiamen

Categories : ABB, All Products

Tags : ABB ACS 800, ABB Drives, Fiber Optic Branching Units, Industrial Communication Cards, Inverter Control Hardware

1 years warranty

Delivery time: 3-7 business days

Free 30 days return

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The ABB NPBU-42C 64011821D, also cataloged as the NPBU-42C Branching Unit, operates as a dedicated hardware component for fiber optic communication routing between drive controllers and parallel-connected inverter modules within PPCS drive architectures.

Part Number Structure & Hardware Classification

Model Designation: NPBU-42C
Global Manufacturing Code: 64011821D
Architecture Compatibility: ACS 600 Water-cooled Units & ACS 800 MultiDrive Systems
Network Channel Configuration: 4-Channel PPCS Fiber Optic Branching Unit

Operational & Physical Specifications

Parameter	Specification
Model	NPBU-42C 64011821D
Brand	ABB
Origin	SWEDEN
Weight	0.7 kg
Shipping Dimensions	26.4 x 9.5 x 5.0 cm
Power Supply	24 VDC nominal
Power Consumption	1.2 W (50 mA @ 24 VDC)
Current Draw	50 mA @ 24 VDC
Input Current	10 mA @ 24 VDC
Continuous Current	2 A rms per relay
Network Ports	9 x RS-485
Operating Temp	0 to +60 deg C
Storage Temp	-40 to +85 deg C
Humidity	5 - 95% RH (non-condensing)
Tariff Code	8537101190

Deterministic Network Bus & Optical Transmission

The NPBU-42C unit routes noise-immune PPCS signal streams across parallel-connected inverter modules. Backplane bus communication velocity licenses and firmware flash compatibility routines process deterministically across the 9 x RS-485 interfaces and optical transceiver channels. This maintains precise current synchronization and high-density I/O scaling across parallel power units without packet latency degradation.

Delivery Package Details

1 x ABB NPBU-42C 64011821D Branching Unit
Anti-static protective wrapping container

Installation Directives & Wire Termination

Mechanical Surface Mounting

Mount the unit vertically onto a clean indoor enclosure wall or surface panel using specified corner mounting holes.
Maintain clear vertical spacing around the module chassis to facilitate unhindered fiber optic cable routing.

Wiring & Legacy Connector Retrofit

Wire incoming 24 VDC power directly to the screw terminals, strictly observing polarity terminals.
When replacing older NPBU-41 units, strip the former connector end from the cable harness and insert stripped wire ends directly into the NPBU-42C screw terminal blocks.
Select the branching unit parameter manually in system control software (ASXR7140 or later) following firmware configuration.

Technical Support FAQ

What supply voltage is required for operating the NPBU-42C?

The unit operates on a 24 VDC nominal auxiliary power supply with a typical current draw of 50 mA.
How many total RS-485 network ports are provided on the unit?

The hardware integrates 9 x RS-485 network ports for serial data communication and module distribution.
What thermal thresholds apply during standard operation?

Operational ambient temperatures must be maintained strictly between 0 deg C and +60 deg C.
How does wire termination differ when replacing an NPBU-41?

The NPBU-42C uses direct screw terminals, requiring legacy connectors to be cut off and stripped back.
Is software configuration necessary after physical hardware installation?

Yes, standard software versions like ASXR7140 require manual selection of the branching unit parameter.
What current rating applies to onboard relay contacts?

The relay output paths are rated to carry up to 2 A rms continuous current per channel.
What are the physical transit dimensions for shipment?

Packaging dimensions measure 26.4 cm in length by 9.5 cm in width by 5.0 cm in height.
What total shipping weight is recorded for the module?

The boxed unit weighs exactly 0.7 kg including ESD protective packaging.

Shipping

Emergency Dispatch: Same-day shipping for in-stock orders placed before 2:00 PM (GMT+8).
Premium Carriers: Reliable global delivery via DHL, FedEx, and UPS to 150+ countries.
Flexible Options: We support shipping via your own carrier account (DHL/FedEx/UPS).
Industrial Packaging: Professional ESD protection and reinforced shock-absorbent packaging.

Returns

30-Day Window: Request a return within 30 days of receipt for eligible items.
Condition: Items must be in their original, factory-sealed condition with all tags.
Hassle-Free Process: Contact sales@maxwellplc.com for a return label and instructions.
Fast Refunds: Approved refunds are processed to your original payment method within 10 days.

Warranty

12-Month Guarantee: A comprehensive one-year warranty covers all functional defects.
Authenticity: Every part is guaranteed 100% original, brand-new, and genuine.
Expert Support: Dedicated technical assistance to verify and resolve any hardware issues.
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