800 A RMS High-Current Rating
High-speed fuse rated 800 A RMS for large industrial power circuits requiring high-current semiconductor protection.
Technical specifications, features, applications and purchasing information.
| Brand | Bussmann |
| Model Number | FWH-800A |
| Product Category | High-Speed Fuse |
| Series | FWH |
| Current Rating | 800 A RMS |
| Voltage Rating AC | 700 V (UL), 690 V (IEC), 500 VAC |
| Voltage Rating DC | 500 VDC |
| Interrupt Rating AC | 200 kAIC at 1000 VAC |
| Interrupt Rating DC | 50 kAIC at 500 VDC |
| Fuse Class | High-Speed |
| Mounting Type | Stud |
| Connection Type | Blade end x blade end |
| Indication | Non-Indicating |
| Watt Losses | 129 W |
| Product Weight | 1.96 lb |
High-speed fuse rated 800 A RMS for large industrial power circuits requiring high-current semiconductor protection.
Dual voltage rating supports AC and DC bus protection in high-power drive and converter systems.
Published interrupt rating of 200 kAIC at 1000 VAC for high available fault current applications.
Blade end x blade end connections with stud mounting for bolted busbar installations.
129 W watt loss rating for thermal design considerations in high-current assemblies.
Non-indicating construction for high-current systems where fuse status is monitored separately.
We support online purchase of the Bussmann FWH-800A High-Speed Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
What is the Bussmann FWH-800A? The FWH-800A is a Bussmann FWH series high-speed fuse rated 800 A RMS for high-current industrial protection.
What is the voltage rating of FWH-800A? It is rated 700 VAC (UL), 690 VAC (IEC), 500 VAC, and 500 VDC.
What is the interrupt rating of FWH-800A? The interrupt rating is 200 kAIC at 1000 VAC and 50 kAIC at 500 VDC.
What is the mounting type of FWH-800A? It is a stud-mount fuse with blade end x blade end connections.
What is the watt loss of FWH-800A? The published watt loss is 129 W.
What is the weight of FWH-800A? The product weight is approximately 1.96 lb.
Is FWH-800A indicating? No, it is non-indicating.
What applications use FWH-800A? It is used for semiconductor protection, DC common bus, DC drives, and power converters/rectifiers.
What certifications does FWH-800A carry? It is CE Marked, RoHS Compliant, UL Recognized, and CSA Certified.
What should be verified before ordering FWH-800A? Confirm 800 A RMS load, 500 VDC or 500-700 VAC system voltage, high fault current coordination, stud-mount busbar dimensions, and complete catalog number.
Send us your part number and technical requirements.