Fuseholders

Image Part Number Description / PDF Quantity Rfq
HRJ-1K0167

HRJ-1K0167

Eaton

FUSE HOLDER CART 32V 20A IN LINE

0

3553-3

3553-3

Eaton

BUSS FUSEBLOCK

0

H25060-2SCKIN

H25060-2SCKIN

Eaton

FUSE BLK CART 250V 60A CHASS MNT

0

HM25100-3CR

HM25100-3CR

Eaton

FUSE BLOCK CART 250V 100A SMD

0

RM60030-3SR

RM60030-3SR

Eaton

FUSE BLK CLASS R 600V 30A 3POLE

0

170H1013

170H1013

Eaton

FUSE BLOK BLT DWN 660V 200A CHAS

0

HEY-AW-DRLC-J

HEY-AW-DRLC-J

Eaton

FUSE HOLDER CART 600V IN LINE

0

JM60400-1MW26

JM60400-1MW26

Eaton

FUSE BLOCK CART 600V 400A SMD

0

CHM4DCU

CHM4DCU

Eaton

MODULAR FUSE HOLDER 1000V 4P

0

HLS-C

HLS-C

Eaton

FUSE BLOCK BLADE 125V 15A PCB

0

NO.226

NO.226

Eaton

BUSS FUSE REDUCER

0

BK/JM60100-1MW14

BK/JM60100-1MW14

Eaton

FUSE BLOCK 1POLE 600V 100A

0

JM60030-2PR

JM60030-2PR

Eaton

FUSE BLK CLASS J 600V30A PP 2P

0

R60030-2COR

R60030-2COR

Eaton

FUSE BLOCK CART 600V 30A CHASSIS

0

R60200-1CR

R60200-1CR

Eaton

FUSE BLOK CART 600V 200A CHASSIS

0

FH22AM

FH22AM

Eaton

BUSS FUSEBLOCK

0

BH-0113

BH-0113

Eaton

FUSE BLOK BLT DWN 600V 100A CHAS

0

T60100-3C

T60100-3C

Eaton

FUSE BLOK CART 600V 100A CHASSIS

0

5623-13

5623-13

Eaton

FUSE CLIP

0

RM60030-2CR

RM60030-2CR

Eaton

FUSE BLK CLASS R 600V 30A 2POLE

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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