Fuseholders

Image Part Number Description / PDF Quantity Rfq
3553-1

3553-1

Eaton

BUSS FUSEBLOCK

0

RS400P

RS400P

Eaton

RED SPOT 400A BACK STUD CONNECTE

0

C30F

C30F

Eaton

FUSE HLDR CART 600V 30A DIN RAIL

0

13195-351FCZR

13195-351FCZR

Eaton

FUSE PANEL

0

BMM603-3PQ

BMM603-3PQ

Eaton

FUSE BLK MIDGET PP/QC 3POLE

0

1A1838

1A1838

Eaton

TRON FUSECLIP

0

CH083DI

CH083DI

Eaton

FUSE HLDR CART 400V 25A DIN RAIL

0

HLS-08-SL

HLS-08-SL

Eaton

FUSE BLOCK BLADE 125V 15A PCB

0

C30FBS

C30FBS

Eaton

FUSE HLDR CART 600V 30A DIN RAIL

0

BH-2031

BH-2031

Eaton

FUSE BLOK BLT DWN 5000V 400A CHA

0

JM60400-1MW22

JM60400-1MW22

Eaton

FUSE BLOCK CART 600V 400A SMD

0

HM25200-2CR

HM25200-2CR

Eaton

FUSE BLOCK CART 250V 200A SMD

0

SRD-3-2/10

SRD-3-2/10

Eaton

FUSTAT RECEPTACLE

0

NO.213

NO.213

Eaton

BUSS FUSE REDUCER

0

BK/HHH

BK/HHH

Eaton

FUSE HOLDER CARTRIDGE IN LINE

0

RM25030-1PR

RM25030-1PR

Eaton

FUSE BLK CLASS R 250V 30A 1POLE

0

RS63HWH

RS63HWH

Eaton

63A FRONT CONNECTED WHITE

0

T60100-2C

T60100-2C

Eaton

FUSE BLOK CART 600V 100A CHASSIS

0

BH-2033

BH-2033

Eaton

FUSE BLOK BLT DWN 5000V 400A CHA

0

HPS-RR-1K0567

HPS-RR-1K0567

Eaton

FUSE HLDR CART 600V 30A PNL MNT

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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