Fuseholders

Image Part Number Description / PDF Quantity Rfq
HPL-B

HPL-B

Eaton

BUSS FUSEHOLDER

0

HEB-3-5KPV

HEB-3-5KPV

Eaton

FUSE HOLDR CART 600V 30A IN LINE

0

NO.226-R

NO.226-R

Eaton

FUSE BUSS CLASS R REDUCER

0

RM60030-1PR

RM60030-1PR

Eaton

FUSE BLK CLASS R 600V 30A 1POLE

0

HLS-F

HLS-F

Eaton

FUSE BLOCK BLADE 125V 15A PCB

0

H25200-1CR

H25200-1CR

Eaton

FUSE BLOK CART 250V 200A CHASSIS

0

11239-3SR

11239-3SR

Eaton

MODULAR BLOCK

0

H60400-1CR

H60400-1CR

Eaton

FUSE BLOK CART 600V 400A CHASSIS

0

HPV-DV-2A

HPV-DV-2A

Eaton

FUSE HOLDR CART 1000V 2A IN LINE

0

T60400-1C

T60400-1C

Eaton

FUSE BLOK CART 600V 400A CHASSIS

0

HLQ-1K0656

HLQ-1K0656

Eaton

FUSE HOLDER CART 300V 8A PNL MNT

0

HPV-DV-15A

HPV-DV-15A

Eaton

FUSE HLDR CART 1000V 15A IN LINE

0

CH222DU

CH222DU

Eaton

FUSE HLDR 22X58 2POLE

0

TPHCS250-E

TPHCS250-E

Eaton

FUSE HLDR BLADE 80V 250A CHASS

0

T60030-2CR

T60030-2CR

Eaton

FUSE BLOCK CART 600V 30A CHASSIS

0

RYC

RYC

Eaton

BUSS FUSEHOLDER WATERPROO

0

R60100-3CR

R60100-3CR

Eaton

FUSE BLOK CART 600V 100A CHASSIS

0

FH21CM

FH21CM

Eaton

BUSS FUSEBLOCK

0

SFB1060-01

SFB1060-01

Eaton

BUSS FUSE BLOCK

0

R25400-1CR

R25400-1CR

Eaton

FUSE BLOK CART 250V 400A 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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