Fuseholders

Image Part Number Description / PDF Quantity Rfq
CH60J2I

CH60J2I

Eaton

FUSE HLDR CART 600V 60A DIN RAIL

0

BK/4223

BK/4223

Eaton

TRON FUSECLIP

0

RS32H

RS32H

Eaton

32A RED SPOT FRONT CONNECTED BLA

0

RS400H

RS400H

Eaton

RED SPOT 400A FRONT CONNECTED BL

0

JM60400-2MW16

JM60400-2MW16

Eaton

FUSE BLOCK CART 600V 400A SMD

0

J60060-3CRQ

J60060-3CRQ

Eaton

FUSE BLOCK CART 600V 60A CHASSIS

0

RM25030-2CR

RM25030-2CR

Eaton

FUSE BLK CLASS R 250V 30A 2POLE

0

NO.236

NO.236

Eaton

FUSEHOLDER DISPLAY

0

CH30J2

CH30J2

Eaton

FUSE HLDR CART 600V 30A DIN RAIL

0

BK/RM25200-1CR

BK/RM25200-1CR

Eaton

FUSEHOLDER 200AMP CLASS R 250V

0

NO.2621

NO.2621

Eaton

BUSS FUSE REDUCER CLASS H

0

BK/552

BK/552

Eaton

BUSS FLASHER

0

BK/1A5778

BK/1A5778

Eaton

FUSE CLIP BLADE PCB

0

HM25200-1CR

HM25200-1CR

Eaton

FUSE BLOCK CART 250V 200A SMD

0

HLS-13-SL

HLS-13-SL

Eaton

FUSE BLOCK BLADE 125V 15A PCB

0

HM25030-1SR

HM25030-1SR

Eaton

FUSE BLK CLASS H 250V 30A 1POLE

0

R25400-1STRM

R25400-1STRM

Eaton

FUSE BLOK CART 250V 400A CHASSIS

0

H25030-1SEZ

H25030-1SEZ

Eaton

FUSE BLOCK CART 250V 30A CHASSIS

0

SRD-10

SRD-10

Eaton

FUSTAT RECEPTACLE

0

CHM2DU

CHM2DU

Eaton

FUSE HLDR CART 600V 30A DIN RAIL

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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