LVR040S电路保护的PTC可复位保险丝规格书PDF中文资料

LVR040S属于电路保护的PTC可复位保险丝。由力特公司制造生产的LVR040SPTC 可复位保险丝PTC 可复位保险丝可在电流超过一定限值时用于阻断电流（过流保护）。保险丝的工作原理是：其温度会因电流增大而升高，导致电阻变大。跳闸电流为 14 mA 至 50 A，跳闸时间为 8 ms 至 90 s。PTC = 正温度系数。

描述 Description

Littelfuse PolySwitch line-voltage-rated (LVR) devices help protect electric motors and transformers used in commercial and home appliances from damage caused by mechanical overloads, overheating, stall, lost neutral and other potentially harmful conditions.

The LVR line-voltage product line of polymeric positive temperature coefficient (PPTC) devices includes components that are rated for line voltages of 120VAC, VDC and 240VAC, VDC for up to 2A of operating current at 20°C. They help protect against damage caused by both overcurrent surges and overtemperature faults. They also offer low resistance and are compatibly sized with fuse solutions.

Applications

• Electromagnetic loads

• Game machines

• Industrial controls

• Lighting ballasts

• Loudspeakers

• Medical equipment

• Motors, fans and blowers

• POS equipment

• Satellite video receivers

• Security and fire alarm systems

• Test and measurement equipment

• Transformers

• USB hubs, ports and peripherals

• Intelligent appliance

• Robotic machine

特性 Features

• RoHS and Halogen-free compliant

• Broadest range of radial-leaded resettable devices available in the industry

• Current ratings from 50mA to 2A

• Line voltage rating of 120VAC, VDC and 240VAC, VDC

• Fast time-to-trip

• Low resistance

• UL Recognized to UL 1434

• CSA Approved to CSA TIL No. CA-3A

• TUV Approved to EN 60730-1

• CQC Approved to GB 8898, GB/T 7153, GB 14536.1