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产品名称：电动机保护继电器
型号：NJBK7
NJBK7-800系列电动机保护继电器（以下简称保护器），适用于交流频率50Hz、额定绝缘电压至AC690V以下、额定工作电流1A～800A的长期工作或间断工作的交流电动机的过载、阻塞、断相、三相不平衡、欠流、接地、PTC温度、通讯故障等保护。该保护器具有RS485接口，4mA～20mA模拟量变送接口，可以组网通信，通过上位机对电机实现远程监视、控制、故障查询等功能。大电流规格采用柔性的罗式线圈采集电流，具有整定电流范围广，精确度高、安装方便等优点。保护器一般与交流接触器配合使用。
产品符合标准：GB/T 14048.4、IEC60947-4-1。
- 品牌 正泰
- 分类 电机保护断路器
- 关键词 NJBK7 NJBK7 80A～800A AC/DC100V～240V NJBK7 80A～800A AC220V NJBK7 80A～800A AC380V NJBK7-200 40A～200A AC/DC100V～240V NJBK7-200 40A～200A AC220V NJBK7-200 40A～200A AC380V NJBK7-200M 40A～200A AC/DC100V～240V NJBK7-200M 40A～200A AC220V NJBK7-200M 40A～200A AC380V NJBK7-200MT 40A～200A AC/DC100V～240V NJBK7-200MT 40A～200A AC220V NJBK7-200MT 40A～200A AC380V NJBK7-200T 40A～200A AC/DC100V～240V NJBK7-200T 40A～200A AC220V NJBK7-200T 40A～200A AC380V NJBK7-50 10A～50A AC/DC100V～240V NJBK7-50 10A～50A AC220V NJBK7-50 10A～50A AC380V NJBK7-50 1A～5A AC/DC100V～240V NJBK7-50 1A～5A AC220V NJBK7-50 1A～5A AC380V NJBK7-50 2A～10A AC/DC100V～240V NJBK7-50 2A～10A AC220V NJBK7-50 2A～10A AC380V NJBK7-50 6A～30A AC/DC100V～240V NJBK7-50 6A～30A AC220V NJBK7-50 6A～30A AC380V NJBK7-50M 10A～50A AC/DC100V～240V NJBK7-50M 10A～50A AC220V NJBK7-50M 10A～50A AC380V NJBK7-50M 1A～5A AC/DC100V～240V NJBK7-50M 1A～5A AC220V NJBK7-50M 1A～5A AC380V NJBK7-50M 2A～10A AC/DC100V～240V NJBK7-50M 2A～10A AC220V NJBK7-50M 2A～10A AC380V NJBK7-50M 6A～30A AC/DC100V～240V NJBK7-50M 6A～30A AC220V NJBK7-50M 6A～30A AC380V NJBK7-50MT 10A～50A AC/DC100V～240V NJBK7-50MT 10A～50A AC220V NJBK7-50MT 10A～50A AC380V NJBK7-50MT 1A～5A AC/DC100V～240V NJBK7-50MT 1A～5A AC220V NJBK7-50MT 1A～5A AC380V NJBK7-50MT 2A～10A AC/DC100V～240V NJBK7-50MT 2A～10A AC220V NJBK7-50MT 2A～10A AC380V NJBK7-50MT 6A～30A AC/DC100V～240V NJBK7-50MT 6A～30A AC220V NJBK7-50MT 6A～30A AC380V NJBK7-50T 10A～50A AC/DC100V～240V NJBK7-50T 10A～50A AC220V NJBK7-50T 10A～50A AC380V NJBK7-50T 1A～5A AC/DC100V～240V NJBK7-50T 1A～5A AC220V NJBK7-50T 1A～5A AC380V NJBK7-50T 2A～10A AC/DC100V～240V NJBK7-50T 2A～10A AC220V NJBK7-50T 2A～10A AC380V NJBK7-50T 6A～30A AC/DC100V～240V NJBK7-50T 6A～30A AC220V NJBK7-50T 6A～30A AC380V NJBK7-800/10/AC220V 2A～10A NJBK7-800/10/AC380V 2A～10A NJBK7-800/100/AC220V 20A～100A NJBK7-800/100/AC380V 20A～100A NJBK7-800/40/AC220V 8A～40A NJBK7-800/40/AC380V 8A～40A NJBK7-800/400/AC220V 80A～400A NJBK7-800/400/AC380V 80A～400A NJBK7-800/5/AC220V 1A～5A NJBK7-800/5/AC380V 1A～5A NJBK7-800/800/AC220V 200A～800A NJBK7-800/800/AC380V 200A～800A NJBK7-800M/10/AC220V 2A～10A NJBK7-800M/10/AC380V 2A～10A NJBK7-800M/100/AC220V 20A～100A NJBK7-800M/100/AC380V 20A～100A NJBK7-800M/40/AC220V 8A～40A NJBK7-800M/40/AC380V 8A～40A NJBK7-800M/400/AC220V 80A～400A NJBK7-800M/400/AC380V 80A～400A NJBK7-800M/5/AC220V 1A～5A NJBK7-800M/5/AC380V 1A～5A NJBK7-800M/800/AC220V 200A～800A NJBK7-800M/800/AC380V 200A～800A NJBK7-800MT/10/AC220V 2A～10A NJBK7-800MT/10/AC380V 2A～10A NJBK7-800MT/100/AC220V 20A～100A NJBK7-800MT/100/AC380V 20A～100A NJBK7-800MT/40/AC220V 8A～40A NJBK7-800MT/40/AC380V 8A～40A NJBK7-800MT/400/AC220V 80A～400A NJBK7-800MT/400/AC380V 80A～400A NJBK7-800MT/5/AC220V 1A～5A NJBK7-800MT/5/AC380V 1A～5A NJBK7-800MT/800/AC220V 200A～800A NJBK7-800MT/800/AC380V 200A～800A NJBK7-800T/10/AC220V 2A～10A NJBK7-800T/10/AC380V 2A～10A NJBK7-800T/100/AC220V 20A～100A NJBK7-800T/100/AC380V 20A～100A NJBK7-800T/40/AC220V 8A～40A NJBK7-800T/40/AC380V 8A～40A NJBK7-800T/400/AC220V 80A～400A NJBK7-800T/400/AC380V 80A～400A NJBK7-800T/5/AC220V 1A～5A NJBK7-800T/5/AC380V 1A～5A NJBK7-800T/800/AC220V 200A～800A NJBK7-800T/800/AC380V 200A～800A 保护继电器 正泰 电动机保护继电器 继电器