Fuseholders

Image Part Number Description / PDF Quantity Rfq
NDNLFD1-WH

NDNLFD1-WH

Eaton

FUSE BLOK CART 600V 15A DIN RAIL

0

FH22HM

FH22HM

Eaton

BUSS FUSEBLOCK

0

3835-10

3835-10

Eaton

FUSE BLOCK CART 250V 30A CHASSIS

0

RM25600-2CR

RM25600-2CR

Eaton

600 AMP CLASS R FUSE HOLDER 250V

0

BG3031B

BG3031B

Eaton

FUSE BLOCK CART 480V 30A CHASSIS

0

CH141DNXU

CH141DNXU

Eaton

FUSE HLDR 14X51 NEUTRAL

0

RS100PH

RS100PH

Eaton

100A FRONT/BACK STUD CONNECTED

0

SRU

SRU

Eaton

FUSE TRON BOX COVER UNIT

0

HPV-DV-6A

HPV-DV-6A

Eaton

FUSE HOLDR CART 1000V 6A IN LINE

0

BCA6033SQ

BCA6033SQ

Eaton

FUSE BLOCK CART 600V 30A CHASSIS

0

SC32PH/D

SC32PH/D

Eaton

FUSE CERAMIC

0

BK/5678-05

BK/5678-05

Eaton

TRON FUSECLIP

0

FH21KM

FH21KM

Eaton

BUSS FUSEBLOCK

0

5TPH

5TPH

Eaton

SPARE FUSEHOLDER

0

JM60100-1MW14

JM60100-1MW14

Eaton

FUSE BLOCK CART 600V 100A SMD

0

SSY-RL

SSY-RL

Eaton

FUSE TRON BOX COVER UNIT

0

H60600-1CR

H60600-1CR

Eaton

FUSE BLOK CART 600V 600A CHASSIS

0

RM25030-3CR

RM25030-3CR

Eaton

FUSE BLK CLASS R 250V 30A 3POLE

0

HET-AW-RLC-B

HET-AW-RLC-B

Eaton

FUSE HOLDER CARTRIDGE IN LINE

0

HEX-KK

HEX-KK

Eaton

FUSE HOLDR CART 600V 30A 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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