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.

The PSR series with bolted blades is designed and tested

to IEC 60269-4.

Littelfuse POWR-SPEED® PSR series products offer

optimized circuit protection at the extremely fast speed

required to protect modern day power conversion devices.

Available in bolted blade style termination (typical in North

American market) with visual blown fuse indication standard

on all fuses and optional micro-switch for external indication.

Features/Benefits

 Best in class dc performance  Extremely current limiting

 Superior cycling capability

 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 Rating Ac: 450 V–1300 V

Dc: 450 V–1000 V

Amperage Rating 40 A–2250 A

Interrupting Rating Ac: 100 kA–200 kA

Dc: 150 kA

Time Constant 10 ms at IR

Microswitch Yes

Mounting Bolted blade style

Material Body: ceramic

Contacts: plated copper

Approvals UL 248-13 Recognized (File: E71611)

cURus (File: E71611)

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

PSR032UL0550X属于电路保护 > 电气专用保险丝。力特公司制造生产的PSR032UL0550X电气专用保险丝该系列产品用于过电流故障保护，其作用是防止电流超过所需最大值而导致设备内的导电元件损坏。这些保险丝与普通保险丝的区别在于以下几个因素之一：具有 UL248 标准下的非辅助性分类、在危险或爆炸性环境中使用的认证，或辅助性设备保护产品中不常见的外形尺寸，如具有指示功能或可熔电缆链路的保险丝和指定用于特定应用（例如电信电路或万用表的保护）的保险丝。