Product Description

The ABB APBU-44CE is a 12-channel branching and fiber-optic distribution unit designed for ABB ACS800 drive systems. It distributes control and communication signals between the drive control unit and multiple inverter or IGBT supply modules through fiber-optic connections. ABB documentation identifies APBU-44CE, 12-channel with ordering code 68243262 and shows it used with ACS800-104 parallel IGBT supply units. The APBU-44CE provides channels CH1 through CH12 and can also support a control/DDCS connection.

Product Parameters

Item	Specification
Brand	ABB
Model	APBU-44CE
Ordering Code	68243262
Product Type	Fiber Optic Branching / Distribution Unit
Product Family	ABB ACS800
Number of Channels	12
Communication	Fiber Optic / DDCS
Application	ACS800 Drive and IGBT Supply Systems
Connected Modules	Up to 12 inverter or IGBT supply modules
Mounting	7.5 × 35 mm EN50022 DIN Rail
Power Supply	24 VDC
Operating Voltage	24 VDC ±10%
Installation	Indoor control cabinet
Status	Legacy / Existing-System Replacement Component
Condition	Verify actual stock condition before installation

FAQ

Q: What is the ABB APBU-44CE?

A: The APBU-44CE is a 12-channel fiber-optic branching unit used in ABB ACS800 drive and IGBT supply applications. ABB documentation lists the APBU-44CE 12-channel version under ordering code 68243262.

Q: How many channels does APBU-44CE have?

A: It provides 12 optical channels, identified as CH1 through CH12, for connection to inverter or IGBT supply modules.

Q: What is the difference between APBU-44C and APBU-44CE?

A: APBU-44CE is the extended 12-channel version. ABB documentation shows APBU-44C configurations for smaller parallel arrangements, while APBU-44CE is specified for systems requiring up to 12 channels.

Q: What power supply does the APBU-44CE use?

A: The APBU unit is designed for a 24 VDC supply, with ABB documentation showing provision for redundant 24 VDC inputs.

Q: Where is APBU-44CE installed?

A: It is designed for cabinet installation on a 7.5 × 35 mm EN50022 mounting rail.

Recommended ABB Models

1. ABB APBU-44C | Fiber Optic Branching Unit
2. ABB APBU-44CE | 12-Channel Fiber Optic Branching Unit
3. ABB NPBU-42C | Fiber Optic Branching Unit
4. ABB NDBU-95C | DDCS Branching Unit
5. ABB NDBU-95C 3AFE64008311 | DDCS Branching Unit
6. ABB ACS800-104 | IGBT Supply Unit
7. ABB ACS800-107 | IGBT Supply Unit
8. ABB ACS800 RDCU | Drive Control Unit
9. ABB RDCO-01 | DDCS Communication Module
10. ABB RDCO-03 | DDCS Communication Module