| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
Keystone Electronics Corp. |
2AG/5MM SMT FUSE CLIP ON |
21416100 |
|
 |
Keystone Electronics Corp. |
FUSE CLIP BLADE 500V 20A PCB |
7564 |
|
 |
Keystone Electronics Corp. |
FUSE HOLDER BLADE 20A SMD (SMT) |
73211100 |
|
 |
Keystone Electronics Corp. |
FUSE HOLDER BLADE 20A SMD (SMT) |
564100 |
|
 |
Keystone Electronics Corp. |
FUSE BLOCK BLADE 500V 20A PCB |
79098 |
|
 |
Keystone Electronics Corp. |
FUSE CLIP BLADE 30A SURFACE MNT |
46822 |
|
 |
Keystone Electronics Corp. |
FUSE HOLDER BLADE 30A PCB |
88997677 |
|
 |
Keystone Electronics Corp. |
FUSE BLOCK BLADE 500V 50A PCB |
979736680 |
|
 |
Keystone Electronics Corp. |
FUSE CLIP CARTRIDGE 15A PCB |
7900 |
|
 |
Keystone Electronics Corp. |
FUSE CLIP BLADE 500V 30A PCB |
0 |
|
 |
Keystone Electronics Corp. |
FUSE CLIP CARTRIDGE 15A PCB |
2800 |
|
 |
Keystone Electronics Corp. |
FUSE BLOCK BLADE 500V 15A PCB |
2147483647 |
|
 |
Keystone Electronics Corp. |
FUSE HOLDER BLADE 30A PCB |
16675463 |
|
 |
Keystone Electronics Corp. |
FUSE HOLDER BLADE 20A SMD (SMT) |
1388500 |
|
 |
Keystone Electronics Corp. |
FUSE HOLDER BLADE 30A PCB |
39085331 |
|
 |
Keystone Electronics Corp. |
FUSE SOCKET (LOW INSERTION) |
487 |
|
 |
Keystone Electronics Corp. |
FUSE CLIP CARTRIDGE 15A PCB |
1210 |
|
 |
Keystone Electronics Corp. |
FUSE HOLDER CARTRIDGE PCB |
3970 |
|
 |
Keystone Electronics Corp. |
FUSE BLOCK CART 500V 15A CHASSIS |
0 |
|
 |
Keystone Electronics Corp. |
FUSE CLIP BLADE 500V 15A SMD |
3380 |
|
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.
| Type | Functional Features | Application Examples |
|---|---|---|
| Panel Mount Fuseholders | Enclosed design with front-accessible fuse compartment | Industrial control panels, HVAC systems |
| Base Mount Fuseholders | Modular design with removable fuse base | Power distribution units, electrical substations |
| Cartridge Fuseholders | Cylindrical design for DIN-rail mounting | Process automation systems, machinery |
| SMT (Surface Mount) Fuseholders | Miniaturized PCB-mount design | Consumer electronics, telecommunications |
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.
| Parameter | Typical Range | Importance |
|---|---|---|
| Voltage Rating | 6-1000V AC/DC | Determines circuit compatibility |
| Current Rating | 0.5-630A | Defines maximum operational current |
| Breaking Capacity | 10kA-50kA | Safety during fault conditions |
| Response Time | 1ms-10s | Protection speed for sensitive components |
| Temperature Range | -40 C to +125 C | Environmental reliability |
| IP Rating | IP20-IP67 | Protection against dust/water ingress |
| Manufacturer | Key Product Series | Notable Features |
|---|---|---|
| Littelfuse | POLO Panel Mount | Modular design with visual indicators |
| Mersen | Acti 9 series | High breaking capacity (100kA) |
| Eaton | Circuit Protection Enclosures | UL94 V-0 rated materials |
| Bel Fuse | 0ZC Series | Surface-mount with over-temperature cutoff |
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
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.