Littelfuse POWR-SPEED PSR High-Speed Square Body Fuses
Littelfuse POWR-SPEED PSR Series High-Speed Square Body Fuses are specifically intended to safeguard power semiconductor devices such as diodes, TRIACs, IGBTs, SCRs, MOSFETs, and other solid-state devices found in power conversion and power conditioning equipment. The PSR fuses with bolted blades are developed and tested in accordance with IEC60269-4 and are offered in bolted blade style termination (common in the North American market), with a visual blown fuse indication standard on all fuses and an optional micro-switch for external indication.
These PSR body fuses have an operating temperature range from -55°C to +125°C and provide optimized circuit protection at high speeds necessary to protect current power conversion equipment. Typically, PSR square body fuses are used in power conversion devices, DC systems, electric vehicle charging stations, and battery protection applications.
Features
- Best-in-class DC performance
- Bolted blade-style mounting
- Ceramic body material
- Class aR performance according to IEC60269-4
- Extremely current limiting
- Fast-acting
- Global certification cURus
- IEC60269-4 tested
- Low watt-loss design
- RoHS and REACH compliant
- Superior cycling capability
- Visual and optional microswitch fuse blown indication
Applications
- Battery protection:
- Energy storage systems
- DC systems:
- DC common bus
- DC injection braking
- Electric vehicle charging stations
- Heaters and power supplies
- Power conversion devices:
- Drives
- Inverter
- Rectifiers
- UPS
Technical Specifications
Parameters | Values |
---|---|
Amperage rating range | 40A to 2250A |
Interrupting rating range | 100kA to 200kA (AC) 150kA (DC) |
Operating temperature range | -55°C to +125°C |
Time constant | 10ms at IR |
Voltage rating range | 450V to 1300V (AC) 450V to 1000V (DC) |