BSI Approval Fuses
Last Updated: April 1, 2025
Description
BSI Approval Fuses are designed to act as a protective device in electrical circuits. They serve as a weak link that will rupture and isolate the circuit when an overload or short circuit fault condition occurs, thereby protecting equipment and personnel from potential damage or injury.
Working Principle
BSI Approval Fuses operate by melting their fusible wire link when the current flowing through them exceeds a certain threshold. This melting action breaks the circuit, stopping the flow of electricity and preventing damage to the circuit components. The fuses are particularly useful because they provide a reliable method of circuit protection, ensuring that any fault conditions are quickly addressed by interrupting the current flow.
Applications
BSI Approval Fuses are used in a variety of applications where circuit protection is critical. Specific examples include their use in semiconductor circuitry protection, where precise and reliable interruption of current is necessary to prevent damage to sensitive components. They are also employed in high voltage applications, such as power distribution systems, where they help to manage and mitigate the risks associated with electrical faults.
Advantages over other Fuses
One of the key advantages of BSI Approval Fuses over other types of fuses is their adherence to stringent standards, which ensures a high level of reliability and safety. They are designed to handle specific fault conditions effectively, providing superior protection for both equipment and personnel. Additionally, some designs include striker pins that can initiate remote alarms, offering an added layer of functionality not commonly found in other fuse types.
Limitations
A notable limitation of BSI Approval Fuses is that they require manual replacement after they have operated to clear a fault. This can lead to downtime in systems where continuous operation is critical. Additionally, the need for manual intervention can increase maintenance requirements and costs.
Considerations
When selecting BSI Approval Fuses, several factors should be considered to ensure optimal performance and cost-effectiveness. Initial costs can vary depending on the specific type and rating of the fuse required for the application. Operating expenses may include the cost of replacement fuses and the labor associated with their installation. Durability is generally high, but the accuracy of the fuse in responding to fault conditions is crucial for effective protection. Replacement and maintenance costs should also be factored in, as these can impact the overall cost of ownership over the lifespan of the electrical system.
from DigiKey
10A 600V AC DC Fuse Cartridge Holder [See More]
- Approvals / Standards: BSI
- Rated Breaking Capacity: 10000
- Rated Current: 10
from Altech Corp.
British fuses are typically used for industrial and general applications to protect cable and motor circuits. They are available with four different mounting plates. [See More]
- Approvals / Standards: IEC; BSI
- Mounting: Replaceable
- Fuse Type: Protective
- Rated Voltage: 550
from DigiKey
10A 600V AC DC Fuse Cartridge Holder [See More]
- Approvals / Standards: BSI
- Rated Breaking Capacity: 200
- Rated Current: 10
from Altech Corp.
British fuses are typically used for industrial and general applications to protect cable and motor circuits. They are available with four different mounting plates. [See More]
- Approvals / Standards: IEC; BSI
- Mounting: Replaceable
- Fuse Type: Protective
- Rated Voltage: 550
from DigiKey
200mA 250V AC DC Fuse Cartridge, Glass Holder 5mm x 20mm [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 35
- Fuse Type: Miniature
- Operating Temperature: -55 to 125
from Altech Corp.
British fuses are typically used for industrial and general applications to protect cable and motor circuits. They are available with four different mounting plates. [See More]
- Approvals / Standards: IEC; BSI
- Mounting: Replaceable
- Fuse Type: Protective
- Rated Voltage: 415
from DigiKey
200mA 250V AC DC Fuse Cartridge, Glass Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 35
from Altech Corp.
British Semiconductor fuses are typically used for industrial applications to protect semiconductors like diodes, SCR ’s, etc. They are available in single and double body units with multiple diameters and fixing centers. The fuses have mounting tabs for bolt mounting. [See More]
- Approvals / Standards: IEC; BSI
- Mounting: Replaceable
- Fuse Type: Protective
- Rated Voltage: 240
from DigiKey
1A 250V AC DC Fuse Cartridge, Ceramic Holder 5mm x 20mm [See More]
- Approvals / Standards: UL; CSA; BSI; SEMKO
- Rated Breaking Capacity: 1500
- Fuse Type: Miniature
- Operating Temperature: -55 to 125
from Altech Corp.
British Semiconductor fuses are typically used for industrial applications to protect semiconductors like diodes, SCR ’s, etc. They are available in single and double body units with multiple diameters and fixing centers. The fuses have mounting tabs for bolt mounting. [See More]
- Approvals / Standards: IEC; BSI
- Mounting: Replaceable
- Fuse Type: Protective
- Rated Voltage: 240
from DigiKey
1A 250V AC DC Fuse Cartridge, Ceramic Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: UL; CSA; BSI; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 1500
from Altech Corp.
British Semiconductor fuses are typically used for industrial applications to protect semiconductors like diodes, SCR ’s, etc. They are available in single and double body units with multiple diameters and fixing centers. The fuses have mounting tabs for bolt mounting. [See More]
- Approvals / Standards: IEC; BSI
- Mounting: Replaceable
- Fuse Type: Protective
- Rated Voltage: 240
from DigiKey
10A 250V AC DC Fuse Cartridge, Ceramic Through Hole Radial Bend Cylinder [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 1500
- Mounting: Through Hole
- Operating Temperature: -55 to 125
from Altech Corp.
British Semiconductor fuses are typically used for industrial applications to protect semiconductors like diodes, SCR ’s, etc. They are available in single and double body units with multiple diameters and fixing centers. The fuses have mounting tabs for bolt mounting. [See More]
- Approvals / Standards: IEC; BSI
- Mounting: Replaceable
- Fuse Type: Protective
- Rated Voltage: 240
from DigiKey
10A 250V AC DC Fuse Cartridge, Ceramic Through Hole Radial Bend Cylinder [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 1500
- Mounting: Through Hole
- Operating Temperature: -55 to 125
from DigiKey
10A 250V AC DC Fuse Through Hole Radial Bend Cylinder [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 1500
- Mounting: Through Hole
- Operating Temperature: -55 to 125
from DigiKey
5A 250V AC DC Fuse Cartridge, Ceramic Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 1500
from DigiKey
5A 250V AC DC Fuse Cartridge, Ceramic Through Hole Radial Bend Cylinder [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 1500
- Mounting: Through Hole
- Operating Temperature: -55 to 125
from DigiKey
1A 250V AC DC Fuse Cartridge, Glass Holder 5mm x 20mm [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 35
- Fuse Type: Miniature
- Operating Temperature: -55 to 125
from DigiKey
3.15A 250V AC DC Fuse Cartridge, Glass Holder 5mm x 20mm [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 150
- Fuse Type: Miniature
- Operating Temperature: -55 to 125
from DigiKey
160mA 250V AC DC Fuse Cartridge, Ceramic Holder 5mm x 20mm [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 1500
- Fuse Type: Miniature
from DigiKey
1.6A 250V AC DC Fuse Cartridge, Glass Holder 5mm x 20mm [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 35
- Fuse Type: Miniature
from DigiKey
1.25A 250V AC DC Fuse Cartridge, Glass Holder 5mm x 20mm [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 35
- Fuse Type: Miniature
from DigiKey
500mA 250V AC DC Fuse Cartridge, Ceramic Holder 5mm x 20mm [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 1500
- Fuse Type: Miniature
from DigiKey
10A 250V AC DC Fuse Cartridge, Ceramic Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 1500
from DigiKey
1A 250V AC DC Fuse Cartridge, Glass Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 35
from DigiKey
6.3A 250V AC DC Fuse Cartridge, Glass Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 63
from DigiKey
1.25A 250V AC DC Fuse Cartridge, Glass Holder 5mm x 20mm [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Rated Breaking Capacity: 35
- Fuse Type: Miniature
from DigiKey
5A 250V AC DC Fuse Cartridge, Glass Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: BSI; VDE; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 50
from DigiKey
10A 250V AC DC Fuse Cartridge, Ceramic Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: UL; CSA; BSI; VDE; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 1500
from DigiKey
315mA 250V AC DC Fuse Cartridge, Ceramic Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: CSA; BSI
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 1500
from DigiKey
10A 250V AC DC Fuse Cartridge, Glass Through Hole 5mm x 20mm (Axial) [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Mounting: Through Hole
- Fuse Type: Miniature
- Rated Breaking Capacity: 100
from Utmel Electronic Limited
FUSE GLASS 1A 250VAC 5X20MM [See More]
- Approvals / Standards: RoHS; CSA; BSI; VDE; SEMKO
- Mounting: Holder
- Fuse Material: Glass; Glass
- Rated Voltage: 250
from SOC America, Inc.
SOC Fuse Technology. Over its fifty-two years of existence, SOC has spent considerable research efforts to ensure the safety of its customers, and has worked with Mitsubishi Motors for fifteen of those years on the development of highly reliable fuses for electric vehicles. The culmination of these... [See More]
- Approvals / Standards: RoHS; BSI; SEMKO
- Mounting: Replaceable
- Fuse Type: Miniature
- Rated Voltage: 250
from Littelfuse, Inc.
The 215 series is 5x20, Ceramic body, Time-Lag type Cartridge fuse. With the extension into higher current ratings beyond existing 12A, from 15A up to 25A in cartridge version, in particular for 20A and 25A, it offers designers better flexibility in circuit protection design for high current... [See More]
- Approvals / Standards: IEC; BSI; VDE
- Features: Time Lag
- Rated Voltage: 250
- Operating Temperature: -55 to 125
from Utmel Electronic Limited
FUSE, LEADED CARTRIDGE, FAST, 3.15A [See More]
- Approvals / Standards: RoHS; CSA; BSI; VDE; SEMKO
- Rated Voltage: 250
- Mounting: Through Hole
- Rated Current: 3.15
from SOC America, Inc.
SOC Fuse Technology. Over its fifty-two years of existence, SOC has spent considerable research efforts to ensure the safety of its customers, and has worked with Mitsubishi Motors for fifteen of those years on the development of highly reliable fuses for electric vehicles. The culmination of these... [See More]
- Approvals / Standards: RoHS; UL; BSI; SEMKO
- Mounting: Replaceable
- Fuse Type: Miniature
- Rated Voltage: 250
from Littelfuse, Inc.
5x20mm fast-acting ceramic body cartridge fuse designed to IEC specification. Designed to International (IEC )Standards for use globally Meets the IEC 60127-2, sheet 1 specification for fast-acting fuses Available in cartridge or axial lead form Lead-free and RoHS compliant [See More]
- Approvals / Standards: CSA; IEC; BSI; VDE; SEMKO
- Features: Fast Acting
- Rated Voltage: 250
- Operating Temperature: -55 to 125
from SOC America, Inc.
SOC Fuse Technology. Over its fifty-two years of existence, SOC has spent considerable research efforts to ensure the safety of its customers, and has worked with Mitsubishi Motors for fifteen of those years on the development of highly reliable fuses for electric vehicles. The culmination of these... [See More]
- Approvals / Standards: RoHS; UL; CSA; BSI; SEMKO
- Mounting: Replaceable
- Fuse Type: Miniature
- Rated Voltage: 250
from Littelfuse, Inc.
5x20mm fast-acting glass body cartridge fuse designed to IEC specification. Designed to International (IEC )Standards for use globally Meets the IEC60127-2, Sheet 2 specification for fast-acting fuses Available in cartridge or axial lead form Lead-free and RoHS compliant [See More]
- Approvals / Standards: CSA; IEC; BSI; VDE; SEMKO
- Features: Fast Acting
- Rated Voltage: 250
- Operating Temperature: -55 to 125
from SOC America, Inc.
SOC Fuse Technology. The HTR N5 is a cartridge-type fuse with leads, and has a rated breaking current of 1500A. This fuse employs a high-quality and highly reliable wire-type fuse-element and is certified not only under Japanese and North American standards but also European standards. Over its... [See More]
- Approvals / Standards: RoHS; UL; BSI; SEMKO
- Mounting: Solderable (with leads)
- Fuse Type: Miniature
- Rated Voltage: 250
from Littelfuse, Inc.
5x20mm Time-Lag glass body cartridge fuse designed to Designed to International (IEC ) Standards for use globally Meets the IEC 60127-2, Sheet 3 specification for TimeLag fuses Available in cartridge and axial lead form RoHS compliant and lead-free [See More]
- Approvals / Standards: CSA; IEC; BSI; VDE; SEMKO
- Features: Time Lag
- Rated Voltage: 250
- Operating Temperature: -55 to 125
from SOC America, Inc.
SOC Fuse Technology. Over its fifty-two years of existence, SOC has spent considerable research efforts to ensure the safety of its customers, and has worked with Mitsubishi Motors for fifteen of those years on the development of highly reliable fuses for electric vehicles. The culmination of these... [See More]
- Approvals / Standards: RoHS; UL; CSA; BSI; SEMKO
- Mounting: Replaceable
- Fuse Type: Miniature
- Rated Voltage: 250
from Littelfuse, Inc.
5x20mm time-Lag glass body cartridge fuse designed to IEC specification Designed to International (IEC ) Standards for use globally Meets the IEC 60127-2, Sheet 6 specification for timeLag fuses Available in cartridge or axial lead form Lead-free and RoHS compliant [See More]
- Approvals / Standards: BSI; VDE; SEMKO
- Features: Time Lag
- Rated Voltage: 250
- Operating Temperature: -55 to 125
from Littelfuse, Inc.
The 213 Series is a 5x20mm time-lag, surge-withstand, glass body cartridge fuse that is designed to IEC specifications. Conforms to EN/IEC/K/J 60127-1 and EN/IEC/K/J 60127-2 Available in cartridge and axial lead form Meets the IEC 60127-2, Sheet 3 specification for time-Lag fuses Lead-free and RoHS... [See More]
- Approvals / Standards: CSA; BSI; VDE; SEMKO
- Features: Time Lag
- Rated Voltage: 250
- Operating Temperature: -55 to 125
from Littelfuse, Inc.
The decaSMD series provides surface mount overcurrent protection for applications where space is at a premium and resettable protection is desired. Broadest range of resettable devices available in industry Low resistance [See More]
- Approvals / Standards: RoHS; BSI
- Features: Resettable
- Mounting: Solderable (Surface Mount Technology)