$169.99
| Voltage | WPC | AH/kVA | Length | Width | Height | Weight |
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| N/A | N/A | N/A | N/A | N/A | N/A | 1 |
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| WPC | N/A |
| Amp/H | N/A |
| Length | N/A |
| Width | N/A |
| Height | N/A |
| Weight | 1 |
The Bussmann SPP-6K700 is a heavy-duty, high-speed semiconductor fuse rated at 700 amps and 700 VAC. Designed specifically for the demanding protection requirements of high-power semiconductor circuits, this fuse provides rapid interruption of damaging fault currents to help protect sensitive rectifier, inverter, drive, and power-conversion components.
The SPP-6K700 carries an aR utilization category, identifying it as a partial-range fuse specifically intended for semiconductor protection. Unlike general-purpose overcurrent fuses, high-speed semiconductor fuses are engineered to respond rapidly to high fault currents before excessive energy can damage sensitive power-electronic devices.
Its rugged square-body construction is designed for high-current industrial power equipment where reliability, low resistance, and fast fault clearing are critical. This fuse is suitable for compatible UPS systems, industrial drives, rectifiers, inverters, converters, and other high-power electronic equipment when specified by the equipment manufacturer.
High-Speed Semiconductor Protection:
Designed for power-electronic circuits where rapid interruption of excessive fault current is critical to protecting semiconductor components.
700 Amp Current Rating:
Heavy-duty high-current fuse designed for demanding industrial and critical-power applications.
700 VAC Rating:
Rated for operation in compatible electrical and power-electronic circuits up to 700 volts AC.
aR Utilization Category:
Partial-range semiconductor protection designed to provide high-speed short-circuit protection for sensitive power semiconductors.
Low Electrical Resistance:
Fuse label specifies a resistance value of 0.1097 mΩ at 21°C, supporting efficient operation in high-current applications.
Heavy-Duty Square Body:
Robust industrial construction designed for high-current power-conversion and semiconductor protection applications.
Critical Power Applications:
Suitable for compatible UPS, rectifier, inverter, industrial drive, and power-conversion equipment where the SPP-6K700 is specified.
| Parameter | Value |
| Manufacturer | Bussmann |
| Part Number | SPP-6K700 |
| Product Type | High-Speed Semiconductor Fuse |
| Utilization Category | aR — Semiconductor Protection |
| Current Rating | 700 A |
| Voltage Rating | 700 VAC |
| Size / Designation | 2GU/50 |
| Marked Resistance | 0.1097 mΩ @ 21°C |
| Construction | Square-Body Semiconductor Fuse |
| Country of Manufacture | Denmark |
| Markings | UL Recognized / CE |
| Typical Application | High-Power Semiconductor & Power Conversion Equipment |
| Application | Protection Function |
| UPS Systems | Protection of compatible high-power rectifier, inverter, and semiconductor stages |
| Industrial AC Drives / VFDs | High-speed protection of compatible power semiconductor circuits |
| Rectifier Systems | Fast fault-current protection of semiconductor rectifier stages |
| Inverter Systems | Protection of compatible high-current inverter power electronics |
| Industrial Power Conversion | Fast overcurrent protection for high-power semiconductor equipment |
The SPP-6K700 is intended for equipment specifically engineered to use this fuse or an approved equivalent. Because semiconductor fuse selection depends on more than amperage and voltage alone, compatibility should always be verified using the equipment manufacturer’s documentation or the part number on the original fuse.
The SPP-6K700 has documented use in certain high-power industrial drive applications. It may also be encountered in UPS and other high-power conversion equipment, but the exact fuse specification can vary by manufacturer, model, kVA rating, input voltage, rectifier design, inverter design, and equipment revision.
Depending on current inventory, the Bussmann SPP-6K700 may be available as new OEM stock or as a reclaimed component removed from decommissioned power equipment. Refer to the individual product condition shown when ordering.
High-speed semiconductor fuses must be matched to the equipment manufacturer’s specified part number, amperage, voltage, utilization category, physical configuration, and semiconductor-protection characteristics. Do not substitute a fuse based solely on matching current and voltage ratings. Verify SPP-6K700 against the original fuse or equipment service documentation before ordering or installation.
