Fuseholders

Image Part Number Description / PDF Quantity Rfq
170H3005

170H3005

Eaton

FUSE BLOK BLT DWN 1400V 630A CHA

0

CHPV2U

CHPV2U

Eaton

FUSE HOLDER CART 1000V 30A DIN

0

HM60030-2CR

HM60030-2CR

Eaton

FUSE BLK CLASS H 600V 30A 2POLE

0

HGC

HGC

Eaton

FUSE HOLDR CART 500V 30A PNL MNT

0

SFB1060-03

SFB1060-03

Eaton

BUSS FUSE BLOCK

0

R25200-3CR

R25200-3CR

Eaton

FUSE BLOK CART 250V 200A CHASSIS

0

BK/JM60400-1CR

BK/JM60400-1CR

Eaton

FUSE BLOCK 1POLE 600V 400A

0

T30060-3SR

T30060-3SR

Eaton

FUSE BLOCK CART 300V 60A CHASSIS

0

FH25KM

FH25KM

Eaton

BUSS FUSEHOLDER

0

JM60200-3MW16

JM60200-3MW16

Eaton

FUSE BLOCK CART 600V 200A SMD

0

3553-10

3553-10

Eaton

BUSS FUSEBLOCK

0

JM60100-2MW14

JM60100-2MW14

Eaton

FUSE BLOCK CART 600V 100A SMD

0

JM60400-3MW16

JM60400-3MW16

Eaton

FUSE BLOCK CART 600V 400A SMD

0

JM60060-2CR

JM60060-2CR

Eaton

FUSE BLK CLASS J 600V 60A 2POLE

0

RLC-J

RLC-J

Eaton

BUSS FUSEHOLDER WATERPROO

0

BCM603-1SQ

BCM603-1SQ

Eaton

FUSE BLOCK CC SCREW/QC 1POLE

0

CHPV1IU

CHPV1IU

Eaton

FUSE HOLDER CART 1000V 30A DIN

0

HEJ-AB

HEJ-AB

Eaton

FUSE HOLDR CART 480V 60A IN LINE

0

RS20HGY

RS20HGY

Eaton

20A FRONT CONNECTED-GRAY

0

9C84277B01

9C84277B01

Eaton

FUSEHOLDER

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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