PSX Powr-Speed® High-Speed Square Body Fuses

Littelfuse PSX Powr-Speed® High-Speed Square Body Fuses are extremely fast-acting, offering high-speed performance up to 1500VDC, ranging from 80A to 1400A in small NH XL package sizes. The PSX series is available with multiple mounting terminations, including bolted-blade, DIN-blade, and metric flush-end styles. Visual blown fuse indication is standard on all fuses, and an optional micro-switch is available for external indication. These fuses are certified to UL248-13 and designed to meet EN high-speed semiconductor fuse standards and future battery protection fuse standards. Littelfuse PSX Powr-Speed High-Speed Square Body Fuses are specially designed to protect battery energy storage systems (BESS) and photovoltaic inverters. These fuses are also ideal for DC applications, including DC common bus systems, larger industrial regenerative drives, rectifiers, and metal processing equipment.

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Qty. RoHS ECAD Model Series
Product
Current Rating
Voltage Rating DC
Interrupt Rating
Body Style
Mounting Style
Termination Style
Indicator Style
Packaging
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL DIN BL 350A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 350 A 1.5 kVDC 200 kA Square Body Blade Fuses DIN Blade Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL FLUSH 160A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 160 A 1.5 kVDC 200 kA Square Body Fuses Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL FLUSH 250A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 250 A 1.5 kVDC 200 kA Square Body Fuses Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL FLUSH 280A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 280 A 1.5 kVDC 200 kA Square Body Fuses Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL FLUSH 315A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 315 A 1.5 kVDC 200 kA Square Body Fuses Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL FLUSH 450A
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 450 A 1.5 kVDC 200 kA Square Body Fuses Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL BOLTED BL 250A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 250 A 1.5 kVDC 200 kA Square Body Blade Fuses Screw Blade Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL BOLTED BL 280A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 280 A 1.5 kVDC 200 kA Square Body Blade Fuses Screw Blade Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL BOLTED BL 315A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 315 A 1.5 kVDC 200 kA Square Body Blade Fuses Screw Blade Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL BOLTED BL 450A
Datasheet
Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 450 A 1.5 kVDC 200 kA Square Body Blade Fuses Screw Blade Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL BOLTED BL 500A
Datasheet
Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 500 A 1.5 kVDC 200 kA Square Body Blade Fuses Screw Blade Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL FLUSH 1100A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 1.1 kA 1.5 kVDC 200 kA Square Body Fuses Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL BOLTED BL 1400A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

PSX Specialty Fuses 1.4 kA 1.5 kVDC 200 kA Square Body Blade Fuses Screw Blade Visual Blown Fuse Bulk