Fuseholders

Image Part Number Description / PDF Quantity Rfq
BH-3144

BH-3144

Eaton

FUSE BLOK BLT DWN 1000V 700A CHA

0

5960-62

5960-62

Eaton

FUSE CLIP 638 BRONZE

0

BCA6031PQ

BCA6031PQ

Eaton

FUSE BLOCK CART 600V 30A CHASSIS

0

H25400-3CR

H25400-3CR

Eaton

FUSE BLOK CART 250V 400A CHASSIS

0

BP/HHH-RP

BP/HHH-RP

Eaton

FUSE HOLDR BLADE 32V 30A IN LINE

0

RM25200-1CR

RM25200-1CR

Eaton

200 AMP CLASS R FUSEHOLDER 250V

0

HM60030-3CR

HM60030-3CR

Eaton

FUSE BLK CLASS H 600V 30A 3POLE

0

4164-FR-SSTUD

4164-FR-SSTUD

Eaton

FUSEBLOCK

0

A

A

Eaton

BUSS FUSEHOLDER

0

RM25030-1CR

RM25030-1CR

Eaton

FUSE BLK CLASS R 250V 30A 1POLE

0

BK/4222

BK/4222

Eaton

TRON FUSECLIP

0

BK/HPL-B

BK/HPL-B

Eaton

FUSEHOLDER

0

HEJ-LLB

HEJ-LLB

Eaton

FUSE HOLDR CART 480V 60A IN LINE

0

1A3126-03

1A3126-03

Eaton

FUSE CLIP

0

3552-1

3552-1

Eaton

BUSS FUSEBLOCK

0

11239-3PR

11239-3PR

Eaton

MODULAR BLOCK

0

CH141DU

CH141DU

Eaton

FUSE HLDR 14X51 1POLE

0

RLA

RLA

Eaton

BUSS FUSEHOLDER

0

RM60200-3CR

RM60200-3CR

Eaton

200 AMP CLASS R FUSEHOLDER 600V

0

HHX-20T

HHX-20T

Eaton

FUSE HLDR BLADE 32V 48A IN LINE

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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