电机和电泵保护

  • MP8000

  • MP8000是一款高级电机保护电子过载继电器，可通过以下方式完全编程……更多

  • 工作
    电压
    VAC:     85 - 264

  • 输入
    电压（V）:     90 - 690 Vac（使用外部PT可以将上限范围扩大到690 Vac以上）

  • 输出
    型式:     控制继电器: SPST - 表格A；辅助继电器: SPDT - Form C

  • MPU-32

  • MPU-32电机保护装置可针对三相低电压、中等马力感应电机提供基于电流和温度的保护、测量……更多

  • 工作
    电压
    VAC:     65 - 265

  • 工作
    电压
    VDC:     80 - 275

  • 继电器触点配置: 3 C型（N.O./N.C.）

  • 777

  • 777是一款完全可编程的电子过载继电器，旨在保护任何电动机牵引2-80……更多

  • 输入
    电压（V）:     100 - 240 Vac，200 - 480 Vac, 200至480VAC，340 - 480 Vac，500 - 600 Vac, 500至600VAC

  • 输出
    型式:     SPDT - Form C

  • 端接类型: 扭矩: 7 in-lbs，扭矩: 7in-lbs

  • 77C

  • 777/ 77C是一款完全可编程的电子过载继电器，旨在保护任何电机牵引……更多

  • 输入
    电压（V）:     100 - 240 Vac，340 - 480 Vac

  • 输出
    型式:     SPDT - Form C

  • 端接类型: 7 in.-lbs.，扭矩: 7 in-lbs

Motors are a significant investment and often run critical processes. Motor protection relays are used to protect the windings from damage due to electrical faults and thermal overloads. Adequate motor protection not only prevents motor damage, but also ensures optimal process efficiency and minimal interruption. Cost recovery when using a motor protection relay is achieved by extending the life of the motor, preventing motor rewinds and reducing downtime.

pdf icon Littelfuse Single & Three-Phase Pump Protection

pdf icon Smart Relay Creates Safety and Efficiency Boom - Case Study

pdf icon Motor Protection Brochure

pdf icon What's your relay telling you?

Smart motor protection relays provide the ultimate combination of protection and troubleshooting. By accessing information on a built-in screen or through the IoT, smart relays give real-time data that helps you detect problems plus understand the causes that contribute to them.
pdf icon Motor Protection Checklist

如欲咨询技术问题

Call +1 800-832-3873 or email us at relays@littelfuse.com 
Littelfuse Pumping Applications

What's your relay telling you? - Download the White Paper

继电器与控制器文献