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The single-phase 77C unit is a fully-programmable, electronic overload relay designed to protect any motor drawing 2-800 full load A (external CTs are required above 90 A). Common applications include conveyor systems, HVAC equipment, saws and grinders, fan motors, and almost any pumping application. The 77C and 777-HVR-SP (family of products) are for single-phase 100-240 V ac applications.
所有过载继电器通过将过载、欠载和电压整合到一个装置中提供无与伦比的保护。对于独立应用，装置包含一个3位LED显示器，用于编程、提供实时操作信息和显示诊断代码，以帮助排除故障。 These units also feature a communications network port that can be used with communication modules, listed in the 777 accessories section, to form a Modbus, DeviceNet™, Profibus, or Ethernet network. 最多可从PC、PLC或SCADA系统远程监控99台装置，并通过带有可选解决方案软件的PC进行数据记录。此功能提供了一种简单、经济的方式来满足弧闪安全的新要求。
- 内置显示器
- 可编程电压和电流设置
- 3个可选重启选项
- 3个可编程重启延时器
- 远程显示兼容性
- 灵活复位
- 网络通信能力
- Visual indication for programming, viewing real-time voltage or current, and last fault code
- Allows usage on a wide range of systems
- 可以选择自动、半自动或手动，以最好地满足个别应用需求
- 为快速循环保护、电机冷却和干井恢复的重启延迟时间进行单独编程
- Increases safety through remote display of real-time data and fault history. Aids with arc-flash safety regulations
- Reset can be done through pushbutton on relay or remotely with optional 777-MRSW or OL-Reset remote reset kit
- Compatible with Modbus, DeviceNet™, Profibus, or Ethernet using optional communications module
77C Parts
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77C 应用
- 输送系统
- 暖通空调设备
- 锯和磨床
- 风扇电机
