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.

Results: 63
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Description Datasheet Availability Pricing (DKK) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Current Rating
Fuse Type
Voltage Rating DC
Interrupt Rating
Termination Style
Indicator Style
Packaging
Series
Littelfuse Industrial & Electrical Fuses SQB SIZE 1XL BOLTED BL 550A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 12
Mult.: 1

Semiconductor Fuses 550 A Fast-Acting Fuses 1.5 kVDC 200 kA Blade Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL DIN BL 700A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 700 A Fast-Acting Fuses 1.5 kVDC 200 kA Blade Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL DIN BL 800A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 7
Mult.: 1

Semiconductor Fuses 800 A Fast-Acting Fuses 1.5 kVDC 200 kA Blade Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL DIN BL 900A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 7
Mult.: 1

Semiconductor Fuses 900 A Fast-Acting Fuses 1.5 kVDC 200 kA Blade Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL DIN BL 1100A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 7
Mult.: 1

Semiconductor Fuses 1.1 kA Fast-Acting Fuses 1.5 kVDC 200 kA Blade Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL FLUSH 700A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 7
Mult.: 1

Semiconductor Fuses 700 A Fast-Acting Fuses 1.5 kVDC 200 kA Threaded Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL FLUSH 800A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 800 A Fast-Acting Fuses 1.5 kVDC 200 kA Threaded Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL FLUSH 900A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 7
Mult.: 1

Semiconductor Fuses 900 A Fast-Acting Fuses 1.5 kVDC 200 kA Threaded Visual Indicator Bulk PSX


Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL FLUSH 1000A
Datasheet
7Expected 24/11/2026
Min.: 1
Mult.: 1

Semiconductor Fuses 1 kA Fast-Acting Fuses 1.5 kVDC 200 kA Threaded Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL FLUSH 1100A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 7
Mult.: 1

Semiconductor Fuses 1.1 kA Fast-Acting Fuses 1.5 kVDC 200 kA Threaded Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL BOLTED BL 900A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 7
Mult.: 1

Semiconductor Fuses 900 A Fast-Acting Fuses 1.5 kVDC 200 kA Blade Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL BOLTED BL 1250A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 1.25 kA Fast-Acting Fuses 1.5 kVDC 200 kA Blade Visual Indicator Bulk PSX
Littelfuse Industrial & Electrical Fuses SQB SIZE 3XL BOLTED BL 1400A
Datasheet
Non-Stocked Lead-Time 15 Weeks
Min.: 1
Mult.: 1

Semiconductor Fuses 1.4 kA Fast-Acting Fuses 1.5 kVDC 200 kA Blade Visual Indicator Bulk PSX