Product Overview

The VIOX bar fuse switch disconnector range is designed for low-voltage distribution systems that require switching, isolation, and fuse protection in one integrated device. The series covers BFD1, BFD2, and BFD3 models for rated working currents from 160A up to 800A in AC 50/60Hz systems.

This product family is suitable for cable branch boxes, box transformers, industrial plants, community power infrastructure, and other distribution installations where dependable overload and short-circuit protection are required together with practical switching and maintenance isolation.

The VIOX BFD series is intended for distribution applications where the fuse switch disconnector must provide safe switching and reliable circuit protection in a compact installation format. The series is designed for use in systems where high short-circuit performance and structured wiring access are important.

The current product information highlights screw and hook mounting, screw and V-clamp connection, and models that support either integrated or separate fuse unit operation. These design differences help buyers choose the version that fits enclosure layout, maintenance preference, and operating requirements.

Key Features

Integrated fuse switch disconnector design for low-voltage distribution systems
Current range from 160A to 800A depending on model series
Rated operational voltage up to 690V
Rated insulation voltage of 1000V
Rated impulse withstand voltage of 12kV
High short-circuit capability up to 120kA
Suitable for AC-21B, AC-22B, and AC-23B use classes
Compatible with fuse sizes 00, 1, 2, and 3 depending on model

Model Overview

Series	Models	Rated Current Range	Fuse Size	Degree of Protection
BFD1	BFD1-160, BFD1-250, BFD1-400, BFD1-630	160A to 630A	00, 1, 2, 3	IP10
BFD2	BFD2-160, BFD2-250, BFD2-400, BFD2-630, BFD2-800	160A to 800A	00, 1, 2, 3	IP20
BFD3	BFD3-160, BFD3-250, BFD3-400, BFD3-630, BFD3-800	160A to 800A	00, 1, 2, 3	IP20

Technical Specifications

Item	BFD1	BFD2	BFD3
Rated Operational Voltage (Ue)	690V	690V	690V
Rated Current Range	160A, 250A, 400A, 630A	160A, 250A, 400A, 630A, 800A	160A, 250A, 400A, 630A, 800A
Rated Insulation Voltage (Ui)	1000V	1000V	1000V
Rated Impulse Withstand Voltage (Uimp)	12kV	12kV	12kV
Mechanical Life	2000 operations	2000 operations	2000 operations
Connection Method	Screw & V-clamp	Screw & V-clamp	Screw & V-clamp
Installation Method	Screw & Hook	Screw & Hook	Screw & Hook
Use Class	AC-21B / AC-22B / AC-23B	AC-21B / AC-22B / AC-23B	AC-21B / AC-22B / AC-23B
Standard	IEC/EN 60947-3	IEC/EN 60947-3	IEC/EN 60947-3
Rated Short-Circuit Current	120kA	120kA	120kA
Rated Short-Time Current (Icw)	16kA / 1s	16kA / 1s	16kA / 1s

Dimensions

Overall and mounting dimensions will be added after the product drawing has been verified.

Dimension drawingComing soon

Series Differences

The three BFD series support different current ranges, protection levels, and operating preferences. Review the current product data below and confirm the final configuration for your project.

BFD1 covers 160A to 630A applications with IP10 protection
BFD2 extends the range up to 800A with IP20 protection
BFD3 also extends to 800A and supports integrated fuse unit operation
Optional fuse monitoring, signal switch, and remote control module capability is referenced in the current product data

Applications

Typical low-voltage distribution environments where switching, maintenance isolation, and fuse protection may be required in one device.

Cable branch boxes
Box transformers
Industrial plant distribution systems
Community electrical infrastructure
Low-voltage power distribution assemblies
Panel and enclosure installations requiring fuse switch isolation

Why Choose VIOX Bar Fuse Switch Disconnectors

The current VIOX BFD product data presents a structured range for distributors, switchboard manufacturers, panel builders, and project procurement teams.

Broad current range from 160A to 800A
High short-circuit rating for demanding distribution applications
Multiple series options for different operating preferences
Compatible with common fuse sizes from 00 to 3
Designed for IEC/EN 60947-3 applications
Useful for industrial, utility, and infrastructure projects

FAQ

What is a bar fuse switch disconnector used for?

It is used for switching, isolation, and fuse-based overload and short-circuit protection in low-voltage distribution systems.

What current range does the BFD series cover?

The current product data covers 160A, 250A, 400A, 630A, and up to 800A depending on the model family.

What is the rated voltage of the BFD series?

The current product data lists a rated operational voltage of 690V and a rated insulation voltage of 1000V.

What is the difference between BFD2 and BFD3?

The current product data indicates that BFD3 fuse units are opened or closed integrally, while BFD2 fuse units are operated separately.

Where can this product be used?

It can be used in cable branch boxes, box transformers, industrial plants, community infrastructure, and other low-voltage distribution facilities.

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