Littelfuse Inc

POWR-SPEED® Line of High-Speed (Semiconductor) Blade Fuses – PSR Series

Littelfuse's PSR series high-speed square body semiconductor fuses are designed for protection of power semiconductor devices

Image of Littelfuse's POWR-SPEED® Line of High-Speed (Semiconductor) Blade Fuses – PSR SeriesLittelfuse PSR series high-speed square body fuses are specially designed for protection of power semiconductor devices such as diodes, TRIACs, SCRs, MOSFETs, IGBT-based applications, and other solid-state devices that are typically designed into power conversion and power conditioning equipment.

POWR-SPEED Product Flyer

POWR-SPEED Cross-Reference

Features and Benefits
  • Extremely current limiting
  • Low watt loss
  • Universal blade mounting
  • Optimized design
  • RoHS and REACH compliant
  • Optimized performance
  • Reduces peak let-through current and let-through energy (I2t)
  • Less energy wasted during operation
  • Laser-etched resistance values eliminate labels that erode over time
  • Quick and easy field replacement
  • Better energy efficiency and improved protection levels
  • Environmentally friendly, offering greater acceptance globally
Applications
  • Industrial electronics
  • Renewable energy
  • EV infrastructure
  • Power conversion devices
  • DC systems
  • Heaters and power supplies
  • Battery protection applications
  • Electric vehicle charging stations

PSR031 Series

ImageManufacturer Part NumberDescriptionVoltage Rating - ACAvailable QuantityPriceView Details
FUSE SQUARE 250A 700VAC/600VDCPSR031DL0250ZFUSE SQUARE 250A 700VAC/600VDC700 VAC0 - Immediate
6 - Factory Stock		$456.12View Details
FUSE SQUARE 630A 700VAC/600VDCPSR031DL0630ZFUSE SQUARE 630A 700VAC/600VDC700 VAC0 - Immediate$504.30View Details
FUSE SQUARE 200A 700VAC/600VDCPSR031UL0200ZFUSE SQUARE 200A 700VAC/600VDC700 VAC4 - Immediate
6 - Factory Stock		$456.12View Details
FUSE SQUARE 400A 700VAC/600VDCPSR031UL0400ZFUSE SQUARE 400A 700VAC/600VDC700 VAC0 - Immediate
3 - Factory Stock		$456.12View Details
FUSE SQUARE 500A 700VAC/600VDCPSR031UL0500ZFUSE SQUARE 500A 700VAC/600VDC700 VAC0 - Immediate
3 - Factory Stock		$427.28View Details
FUSE SQUARE 700A 700VAC/600VDCPSR031UL0700ZFUSE SQUARE 700A 700VAC/600VDC700 VAC3 - Immediate$573.26View Details
FUSE SQUARE 250A 700VAC/600VDCPSR031US0250ZFUSE SQUARE 250A 700VAC/600VDC700 VAC0 - Immediate
9 - Factory Stock		$388.26View Details
FUSE SQUARE 500A 700VAC/600VDCPSR031US0500ZFUSE SQUARE 500A 700VAC/600VDC700 VAC0 - Immediate
21 - Factory Stock		$414.31View Details

PSR032 Series

ImageManufacturer Part NumberDescriptionVoltage Rating - ACAvailable QuantityPriceView Details
FUSE SQUARE 700A 700VAC/600VDCPSR032DL0700XFUSE SQUARE 700A 700VAC/600VDC700 VAC0 - Immediate$529.65View Details
FUSE SQUARE 500A 700VAC/600VDCPSR032DS0500XFUSE SQUARE 500A 700VAC/600VDC700 VAC0 - Immediate
8 - Factory Stock		$500.37View Details
FUSE SQUARE 630A 700VAC/600VDCPSR032UL0630XFUSE SQUARE 630A 700VAC/600VDC700 VAC0 - Immediate
3 - Factory Stock		$529.65View Details
FUSE SQUARE 1KA 700VAC/600VDCPSR032UL1000XFUSE SQUARE 1KA 700VAC/600VDC700 VAC2 - Immediate
4 - Factory Stock		$630.91View Details
FUSE SQUARE 450A 700VAC/600VDCPSR032US0450XFUSE SQUARE 450A 700VAC/600VDC700 VAC0 - Immediate
3 - Factory Stock		$500.37View Details
FUSE SQUARE 500A 700VAC/600VDCPSR032US0500XFUSE SQUARE 500A 700VAC/600VDC700 VAC0 - Immediate$500.37View Details
FUSE SQUARE 800A 700VAC/600VDCPSR032US0800XFUSE SQUARE 800A 700VAC/600VDC700 VAC2 - Immediate
10 - Factory Stock		$602.16View Details

PSR033 Series

ImageManufacturer Part NumberDescriptionVoltage Rating - ACAvailable QuantityPriceView Details
FUSE SQUARE 500A 700VAC/600VDCPSR033DL0500XFUSE SQUARE 500A 700VAC/600VDC700 VAC0 - Immediate
2 - Factory Stock		$716.42View Details
FUSE SQUARE 1KA 700VAC/600VDCPSR033DL1000XFUSE SQUARE 1KA 700VAC/600VDC700 VAC0 - Immediate
3 - Factory Stock		$772.85View Details
FUSE SQUARE 500A 700VAC/600VDCPSR033UL0500XFUSE SQUARE 500A 700VAC/600VDC700 VAC0 - Immediate
4 - Factory Stock		$716.42View Details
FUSE SQUARE 1KA 700VAC/600VDCPSR033UL1000XFUSE SQUARE 1KA 700VAC/600VDC700 VAC0 - Immediate
3 - Factory Stock		$772.85View Details
FUSE SQUARE 1.25KA 700VAC/500VDCPSR033UL1250XFUSE SQUARE 1.25KA 700VAC/500VDC700 VAC0 - Immediate
79 - Factory Stock		$772.85View Details
FUSE SQUARE 500A 700VAC/600VDCPSR033US0500XFUSE SQUARE 500A 700VAC/600VDC700 VAC0 - Immediate
8 - Factory Stock		$702.24View Details
FUSE SQUARE 700A 700VAC/600VDCPSR033US0700XFUSE SQUARE 700A 700VAC/600VDC700 VAC0 - Immediate$702.24View Details
FUSE SQUARE 800A 700VAC/600VDCPSR033US0800XFUSE SQUARE 800A 700VAC/600VDC700 VAC0 - Immediate
8 - Factory Stock		$702.24View Details

PSR070 Series

ImageManufacturer Part NumberDescriptionVoltage Rating - ACAvailable QuantityPriceView Details
FUSE SQUARE 200A 1.3KVAC/1KVDCPSR070DL0200ZFUSE SQUARE 200A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate
6 - Factory Stock		$542.36View Details
FUSE SQUARE 50A 1.3KVAC/1KVDCPSR070UL0050ZFUSE SQUARE 50A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate
51 - Factory Stock		$512.01View Details
FUSE SQ 100A 1.3KVAC/1KVDC 1=1PCPSR070UL0100ZFUSE SQ 100A 1.3KVAC/1KVDC 1=1PC1.3 kVAC9 - Immediate
135 - Factory Stock		$558.75View Details
FUSE SQUARE 125A 1.3KVAC/1KVDCPSR070UL0125ZFUSE SQUARE 125A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate$616.54View Details
FUSE SQUARE 200A 1.3KVAC/1KVDCPSR070UL0200ZFUSE SQUARE 200A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate
24 - Factory Stock		$541.68View Details
FUSE SQUARE 250A 1.3KVAC/1KVDCPSR070UL0250ZFUSE SQUARE 250A 1.3KVAC/1KVDC1.3 kVAC6 - Immediate
30 - Factory Stock		$616.54View Details

PSR071 Series

ImageManufacturer Part NumberDescriptionVoltage Rating - ACAvailable QuantityPriceView Details
FUSE SQUARE 250A 1.3KVAC/1KVDCPSR071UL0250ZFUSE SQUARE 250A 1.3KVAC/1KVDC1.3 kVAC2 - Immediate
6 - Factory Stock		$645.24View Details
FUSE SQUARE 450A 1.3KVAC/1KVDCPSR071UL0450ZFUSE SQUARE 450A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate
3 - Factory Stock		$617.69View Details

PSR072 Series

ImageManufacturer Part NumberDescriptionVoltage Rating - ACAvailable QuantityPriceView Details
FUSE SQUARE 400A 1.3KVAC/1KVDCPSR072DL0400XFUSE SQUARE 400A 1.3KVAC/1KVDC1.3 kVAC7 - Immediate
10 - Factory Stock		$730.57View Details
FUSE SQUARE 500A 1.3KVAC/1KVDCPSR072DL0500XFUSE SQUARE 500A 1.3KVAC/1KVDC1.3 kVAC1 - Immediate
240 - Factory Stock		$800.91View Details
FUSE SQUARE 250A 1.3KVAC/1KVDCPSR072UL0250XFUSE SQUARE 250A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate
21 - Factory Stock		$730.57View Details
FUSE SQUARE 350A 1.3KVAC/1KVDCPSR072UL0350XFUSE SQUARE 350A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate$730.57View Details
FUSE SQUARE 450A 1.3KVAC/1KVDCPSR072UL0450XFUSE SQUARE 450A 1.3KVAC/1KVDC1.3 kVAC1 - Immediate
5 - Factory Stock		$800.91View Details
FUSE SQUARE 500A 1.3KVAC/1KVDCPSR072UL0500XFUSE SQUARE 500A 1.3KVAC/1KVDC1.3 kVAC1 - Immediate
69 - Factory Stock		$800.91View Details

PSR073 Series

ImageManufacturer Part NumberDescriptionVoltage Rating - ACAvailable QuantityPriceView Details
FUSE SQUARE 500A 1.3KVAC/1KVDCPSR073DL0500XFUSE SQUARE 500A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate
10 - Factory Stock		$786.89View Details
FUSE SQUARE 630A 1.3KVAC/1KVDCPSR073DL0630XFUSE SQUARE 630A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate
23 - Factory Stock		$814.90View Details
FUSE SQUARE 350A 1.3KVAC/1KVDCPSR073UL0350XFUSE SQUARE 350A 1.3KVAC/1KVDC1.3 kVAC1 - Immediate
17 - Factory Stock		$786.89View Details
FUSE SQUARE 450A 1.3KVAC/1KVDCPSR073UL0450XFUSE SQUARE 450A 1.3KVAC/1KVDC1.3 kVAC1 - Immediate
5 - Factory Stock		$786.89View Details
FUSE SQUARE 500A 1.3KVAC/1KVDCPSR073UL0500XFUSE SQUARE 500A 1.3KVAC/1KVDC1.3 kVAC1 - Immediate
4 - Factory Stock		$786.89View Details
FUSE SQUARE 700A 1.3KVAC/1KVDCPSR073UL0700XFUSE SQUARE 700A 1.3KVAC/1KVDC1.3 kVAC0 - Immediate
1 - Factory Stock		$870.64View Details
Published: 2019-11-08

Related Videos

POWR-SPEED and PSR Series High-Speed Fuses
POWR-SPEED and PSR Series High-Speed Fuses

Publish Date: 2020-10-19

Related Product Training Modules

High-Speed Fuseology This presentation will explain how to implement robust fuse protection from Littelfuse.
Electric Vehicle Infrastructure Charging Solutions Littelfuse offers a broad array of solutions for AC and DC types of electric vehicle charging stations.