Description

Littelfuse PSR series high-speed square body fuses are

specially designed for protection of power semiconductor

devices such as diodes, triacs, IGBTs, SCRs, MOSFETs,

and other solid state devices that are typically designed

into power conversion and power conditioning equipment.

Variable frequency drives, inverters, UPS, rectifiers, and

soft-starters are examples of typical equipment designed

with sensitive power semiconductor devices that cannot

withstand any line surge or overcurrent conditions and

require high-speed protection.

Littelfuse POWR-SPEED PSR series products offer

optimized circuit protection at the extremely fast speed

required to protect modern day power conversion devices.

Such products are commonly found in numerous applications

including pulp and paper industries, cranes and heavy-lifting

equipment, processing industries, wastewater treatment

plants, and various large factories and MRO facilities.

Features/Benefits

 Best in class dc performance

 Extremely current limiting  Superior cycling capability

 Global certification cURus, CCC*  Direct bus-bar mount design

 Visual and optional microswitch fuse blown indication

 Low watt-loss design

 Compliance with US and Canadian requirements

 Fast-acting Class aR performance

Applications

 Power conversion devices (UPS, inverter, rectifiers, drives)

 Dc systems (dc common bus, dc injection braking)

 Battery protection application (energy storage systems)

 Electric vehicle charging stations

 Heaters and power supplies

Specifications

Voltage Range Ac: 450 V–1300 V

Dc: 450 V–1000 V

Amperage Range 40 A–2250 A

Interrupting Range Ac: 100 kA–200 kA

Dc: 150 kA

Time Constant 10 ms at IR

Microswitch Yes

Mounting Flush-end style

Material Body: ceramic

Contacts: plated brass

Approvals UL 248-13 Recognized (File: E71611)

cURus (File: E71611)

CCC*

Applicable Standards UL248-13, IEC 60269-4 (Class aR)

Environmental RoHS Compliant, REACH

Operating Temperature -55 °C to +125 °C

Storage Temperature Up to +35 °C with relative humidity

<65

Country of Origin Mexico