Description

3AXD50000018892 identifies an ABB BOCH-350A-7 choke assembly configured as a du/dt filter component for compatible drive systems.

Unlike complete inverter units, this item is supplied as an external drive-side component with its own electrical rating and installation requirements. The ordering reference is used to distinguish this filter assembly from other ABB choke and filtering options with different current capacities or voltage ranges.

For industrial spare-part records, the complete ABB reference is normally maintained together with the connected drive model to ensure correct component matching.

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Technical Data

Recorded Item	Specification
Manufacturer	ABB
Ordering Reference	3AXD50000018892
Product Designation	BOCH-350A-7
Component Type	Choke Assembly / du/dt Filter
Product Group	ABB Drive Accessories
Rated Voltage	690 V
Rated Current	350 A
Phase Configuration	Three-Phase
Filter Type	du/dt Filter
Number of Filter Units	Three Single-Phase Filters
Maximum Power Loss	550 W
Weight	Approx. 16 kg
Maximum Motor Cable Size	3 × 240 mm²
Connection Size	M12

Ordering Reference Breakdown

The ABB reference contains the identification information required for spare-part selection.

Reference	Meaning
3AXD	ABB Drives product reference family
50000018892	Complete ordering code
BOCH-350A-7	Filter configuration

The BOCH designation identifies the filter family, while the current and voltage class separate this version from other ABB drive output filter models.

Filter Configuration Details

The BOCH-350A-7 assembly is supplied as a dedicated filtering component rather than a standalone drive.

Item	Details
Filter Function	du/dt filtering
Assembly Type	External drive accessory
Current Class	350 A
Voltage Class	690 V
Installation Role	Between drive output and motor circuit

The complete assembly includes three filters with mounting accessories and related installation materials.

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Electrical Rating Record

Parameter	Value
Input Voltage Range	380–500 VAC / 380–690 VAC three-phase
Rated Voltage	690 V
Rated Current	350 A
Maximum Switching Frequency	Dependent on connected drive system
Connection Interface	M12 terminals

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Drive Accessory Classification

ABB drive systems include multiple external components that are selected according to inverter configuration.

Component Category	Function
du/dt Filter	Output filtering component
Choke	Inductive drive accessory
EMC Filter	Electromagnetic interference filtering
Brake Components	Dynamic braking accessories

The BOCH-350A-7 belongs specifically to the drive output filtering category.

Installation Reference

The BOCH-350A-7 is normally recorded as part of a larger variable frequency drive installation.

Typical inventory records include:

Record Item	Example Information
Drive Model	Connected ABB inverter
Filter Model	BOCH-350A-7
ABB Code	3AXD50000018892
Current Class	350 A
Voltage Class	690 V

This identification method helps maintenance teams locate the correct spare component.

FAQ

Q: Why is a DU/DT filter used in drive systems?

A: The filter helps reduce rapid voltage changes generated by inverter outputs, supporting improved motor protection conditions.

Q: Is 3AXD50000018892 the same unit as BOCH-350A-7?

A: Yes. BOCH-350A-7 is the official ABB designation associated with catalog number 3AXD50000018892.

Q: In which applications is this choke assembly commonly installed?

A: The assembly is frequently used in industrial motor drive systems, conveyor applications, HVAC installations, and automation environments.

Q: Does the product work together with ABB variable frequency drives?

A: Yes. The unit is designed for integration with compatible ABB drive platforms and motor systems.

Q: What operational benefit does this filter assembly provide?

A: The product assists with reducing voltage stress and improving output conditions between inverter systems and connected motors.

Why Choose Us?

Stable inventory support for Drives & VFDs used in industrial automation environments.

Reliable source for ABB drive accessories and motor protection components.

Professional inventory support for industrial inverter systems and automation power equipment.

Fast supply service for DU/DT filters and variable speed drive assemblies.

Cost-effective sourcing channel for motor control products and industrial drive system accessories.

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3AXD50000018892 ABB BOCH-350A-7 Choke Assembly DU/DT Filter