产品信息 ISOMETER® IR470LY
The ISOMETER® of the IR470LY series is designed to monitor the insulation resistance of unearthed AC and three-phase systems (IT systems) AC/3(N)AC 0…793 V. In combination with a coupling device, the Isometers can also be used for higher voltages. An external supply voltage allows de-energized systems to be monitored too.
The systems to be monitored should not contain DC components. Due to the measuring principle, insulation faults downstream of directly connected rectifiers are indicated with increased response sensitivity. The set response values apply to the pure AC system only.
特点 ISOMETER® IR470LY
- Insulation monitoring for AC, 3(N)AC systems 0…793 V (IT systems)
- Nominal voltage extendable via coupling device
- Response values, adjustable 1…200 kΩ
- Connection monitoring system/earth
- Power ON LED, Alarm LED for signalling AC, L+, L- insulation faults
- LED bar graph indicator for signalling AC, L+, L- insulation faults
- Connection for external kΩ indication
- Combined test and reset button
- Connection external test/reset button
- Alarm relay with two potential-free changeover contacts
- Selectable N/O or N/C operation
- Fault memory behaviour, selectable
可选附件 ISOMETER® IR470LY
| 7204-1421 | B986763 |
| 9604-1421 | B986764 |
Coupling devices
| AGH204S-4 | AC 0…1650 V | B 914 013 |
| AGH520S | AC 0…7200 V | B913033 |
参数 ISOMETER® IR470LY
| IR470LY-40 | AC 230 V | B |
| IR470LY-4011 | AC 24 V | B |
| IR470LY-4012 | AC 42 V | B |
| IR470LY-4013 | AC 90…132 V* | B |
| IR470LY-4015 | AC 400 V | B |
| IR470LY-4016 | AC 500 V | B |
| IR470LY-4017 | AC 690 V | B |
| IR470LY-4018 | AC 440 V | B |
| IR470LY-4021 | DC 9,6…84 V* | B |
| IR470LY-4023 | DC 77…286 V* | B |
* Absolute values
Bender漏电保护产品
应用于不接地系统(IT系统)的绝缘监视设备；
应用于接地系统(TT/TN-S系统)的剩余电流监视设备；
低压系统保护继电器；
医疗电器安全测试设备
其中IR/IRDH系列绝缘监视仪监测整个IT系统对地的绝缘状况，EDS系列绝缘故障定位系统不仅能监测IT系统的对地绝缘状况，还能在线查找发生对地故障的回路。
RCM系列剩余电流监视仪在TN-S或TT系统内，即中性点接地系统内，监测交流或脉动直流成分的剩余电流，即俗称的漏电流。RCMA系列剩余电流监视仪在相同的系统内能监测平滑直流，脉动直流或交流成分的剩余电流。RCMS系列剩余电流监视系统采用模块式设计，单个模块可监视12个回路的剩余电流数值。
本德尔公司的各种低压保护继电器为电子式的测量继电器，具有十分宽大的响应值调节范围，并同时具备各种时间延迟和动作值记忆。
医疗电器安全测试仪是针对相应的IEC标准而设计研发的测试设备。
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