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 such as DC common bus systems, larger industrial regenerative drives, rectifiers, and metal processing equipment.

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Littelfuse Specialty Fuses SQB SIZE 1XL FLUSH 100A
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39Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 100 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL FLUSH 125A
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9Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 125 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL FLUSH 200A
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15Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 200 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL FLUSH 250A
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26Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 250 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL FLUSH 350A
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22Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 350 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL FLUSH 400A
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19Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 400 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL FLUSH 450A
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42Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 450 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL FLUSH 500A
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1Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 500 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL BOLTED BL 100A
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1Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 100 A 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL BOLTED BL 125A
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2Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 125 A 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL BOLTED BL 160A
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149Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 160 A 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL BOLTED BL 350A
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84Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 350 A 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL BOLTED BL 500A
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14Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 500 A 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL BOLTED BL 550A
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2Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 550 A 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 1XL BOLTED BL 630A
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15Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 630 A 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL DIN BL 700A
Datasheet
22Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 700 A 1.5 kVDC 200 kA DIN Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL DIN BL 800A
Datasheet
17Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 800 A 1.5 kVDC 200 kA DIN Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL DIN BL 900A
Datasheet
2Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 900 A 1.5 kVDC 200 kA DIN Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL DIN BL 1100A
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5Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 1.1 kA 1.5 kVDC 200 kA DIN Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL FLUSH 700A
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3Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 700 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL FLUSH 800A
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13Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 800 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL FLUSH 900A
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4Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 900 A 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL FLUSH 1100A
Datasheet
26Factory Stock Available
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PSX Specialty Fuses Square Body Fuses 1.1 kA 1.5 kVDC 200 kA Stud Threaded Stud Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL BOLTED BL 900A
Datasheet
19Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 900 A 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk
Littelfuse Specialty Fuses SQB SIZE 3XL BOLTED BL 1250A
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1Factory Stock Available
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PSX Specialty Fuses Square Body Blade Fuses 1.25 kA 1.5 kVDC 200 kA Screw Blade Visual Blown Fuse Bulk