Fuseholders

Image Part Number Description / PDF Quantity Rfq
RS20F

RS20F

Eaton

20A BACK STUD CONNECTED-FLUSH

0

RM25030-3PR

RM25030-3PR

Eaton

FUSE BLK CLASS R 250V 30A 3POLE

0

HEB-AW

HEB-AW

Eaton

FUSE HOLDR CART 600V 30A IN LINE

0

BMM603-3C

BMM603-3C

Eaton

FUSE BLK MIDGET WIRE CONN 3POLE

0

HLT-04

HLT-04

Eaton

FUSE BLOCK BLADE 125V 15A PCB

0

HM60200-3CR

HM60200-3CR

Eaton

FUSE BLOCK CART 600V 200A SMD

0

HM60030-2PR

HM60030-2PR

Eaton

FUSE BLK CLASS H 600V 30A 2POLE

0

NO.216

NO.216

Eaton

BUSS FUSE REDUCER

0

CHPV141U

CHPV141U

Eaton

FUSE HLDR 1POLE PHOTOVOLTAIC

0

RS100H

RS100H

Eaton

100A FRONT CONNECTED-BLACK

0

BG3021B

BG3021B

Eaton

FUSE BLOCK CART 600V 20A CHASSIS

0

1A1310-05

1A1310-05

Eaton

FUSE CLIP

0

CH30J3I

CH30J3I

Eaton

FUSE HLDR CART 600V 30A DIN RAIL

0

RS63PWH

RS63PWH

Eaton

63A BACK STUD CONNECTED WHITE

0

HET-AW-RLC-A

HET-AW-RLC-A

Eaton

FUSE HOLDER CARTRIDGE IN LINE

0

CHM1DCU

CHM1DCU

Eaton

MODULAR FUSE HOLDER 1000V 1P

0

BCM603-3SQ

BCM603-3SQ

Eaton

FUSE BLOCK CC SCREW/QC 3POLE

0

FH23MM

FH23MM

Eaton

BUSS FUSEBLOCK

0

CHM2DCU

CHM2DCU

Eaton

MODULAR FUSE HOLDER 1000V 2P

0

T30200-3C

T30200-3C

Eaton

FUSE BLOK CART 300V 200A CHASSIS

0

Fuseholders

1. Overview

Fuseholders are mechanical devices designed to safely house and connect fuses into electrical circuits. They ensure reliable mounting, electrical continuity, and safe isolation of fuses during overcurrent protection. As critical components in circuit protection systems, fuseholders prevent equipment damage and fire hazards by enabling controlled interruption of excessive current flow. Their importance spans industries such as power distribution, automotive, and industrial automation, where electrical safety and system reliability are paramount.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Panel Mount FuseholdersEnclosed design with front-accessible fuse compartmentIndustrial control panels, HVAC systems
Base Mount FuseholdersModular design with removable fuse basePower distribution units, electrical substations
Cartridge FuseholdersCylindrical design for DIN-rail mountingProcess automation systems, machinery
SMT (Surface Mount) FuseholdersMiniaturized PCB-mount designConsumer electronics, telecommunications

3. Structure and Components

Typical fuseholders consist of: - Insulating housing (thermoplastic/phenolic resin) - Contact springs (phosphor bronze or beryllium copper) - Fuse retention mechanism (screw/clamp terminals) - Terminal connections (solder tags, PCB pins, or cable lugs) - Arc suppression chamber (ceramic/insulating barriers) The design ensures mechanical stability, low contact resistance (<10m ), and dielectric strength up to 2500VAC.

4. Key Technical Specifications

ParameterTypical RangeImportance
Voltage Rating6-1000V AC/DCDetermines circuit compatibility
Current Rating0.5-630ADefines maximum operational current
Breaking Capacity10kA-50kASafety during fault conditions
Response Time1ms-10sProtection speed for sensitive components
Temperature Range-40 C to +125 CEnvironmental reliability
IP RatingIP20-IP67Protection against dust/water ingress

5. Application Fields

  • Energy: Solar inverters, battery management systems
  • Automotive: EV charging stations, ECU protection
  • Industrial: PLC control circuits, motor drives
  • Telecom: 5G base stations, network switches
  • Aerospace: Avionics power distribution

6. Leading Manufacturers and Products

ManufacturerKey Product SeriesNotable Features
LittelfusePOLO Panel MountModular design with visual indicators
MersenActi 9 seriesHigh breaking capacity (100kA)
EatonCircuit Protection EnclosuresUL94 V-0 rated materials
Bel Fuse0ZC SeriesSurface-mount with over-temperature cutoff

7. Selection Recommendations

Key considerations include: - Matching voltage/current ratings with system requirements - Environmental factors (temperature, vibration, humidity) - Accessibility requirements for fuse replacement - Compliance with standards (UL/IEC/EN) - Short-circuit current capacity of the installation - Mounting orientation and space constraints

Industry Trends and Future Outlook

Emerging trends include: - Miniaturization for EV and portable electronics - Integration with smart monitoring systems (IoT-enabled fuseholders) - Development of RoHS-compliant materials - High-voltage DC compatibility for renewable energy systems - Improved arc flash mitigation technologies The global market is projected to grow at 5.8% CAGR through 2027, driven by electric vehicle adoption and industrial automation demands.

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