Insulation monitors绝缘监视仪

Continuous visibility into insulation condition for the medical IT circuit, with alarm presentation designed around the people who need to respond.持续监测医疗 IT 回路的绝缘状态，并按项目要求将报警信息送达相关人员。

Fill in the project brief填写项目需求表↗See the system overview查看系统说明→

A line insulation monitor mounted on a DIN rail inside an electrical enclosure, beside branch protection devices. — PRODUCT FAMILY产品系列**BIM-SN**

01 / WHAT IT DOES产品作用

An insulation monitoring device observes insulation condition in an isolated medical IT circuit and indicates when the configured alarm threshold is reached. Exact measurement ranges, interfaces and alarm behavior depend on the selected device.绝缘监视仪用于监测隔离医疗 IT 回路的绝缘状态，并在达到设定条件时发出报警。测量范围、接口和报警方式以具体型号资料为准。

02 / TYPICAL INSTALLATION常见安装位置

Associated with the isolated circuit it is intended to monitor. The project should identify where local indications are visible and how alarm information reaches the appropriate staff.接入需要监测的隔离回路。项目应明确本地显示位置，以及报警信息的接收位置和响应人员。

03 / CHECK BEFORE SELECTION选型前核对

Circuit scope · connected loads · installation conditions · interfaces回路范围 · 用电设备 · 安装条件 · 接口要求

04 / BEFORE YOU SELECT选型前确认

Questions to resolve before selecting a model.确定型号前，先确认这些问题。

01
Which isolated circuit will be monitored, and what alarm threshold is required?需要监测哪条隔离回路？报警阈值有什么要求？
02
Where will staff see the local indication, and who will respond?本地报警设置在哪里？由谁查看和处理？
03
Which signals or interfaces must connect to the wider alarm system?哪些信号或接口需要接入整体报警系统？

05 / MODEL SPECIFICATIONS型号参数

Technical data技术参数

BIM-SN

Monitored AC voltage监视交流电压: 100–240 V100–240 V
Alarm threshold报警阈值: 50–500 kΩ · adjustable50–500 kΩ · 可调
Auxiliary supply辅助电源: 100–240 V AC100–240 V AC
Alarm indication报警方式: Visual + audible声光提示

06 / OFFICIAL STANDARD EXTRACTS标准原文摘录

Standard excerpts.标准摘录。

UL 1022 · Ed. 6 · 2025

Line Isolation Monitors线路隔离监视器

“dynamic line isolation monitors and related supplementary indicating units”“动态线路隔离监视器及相关辅助指示单元”

Official source官方出处

IEC 61557-8:2014 · Ed. 3

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems低压配电系统（交流电压不超过 1 000 V、直流电压不超过 1 500 V）的电气安全 — 保护措施的测试、测量或监测设备 — 第 8 部分：IT 系统用绝缘监测设备

“insulation resistance RF to earth of unearthed a.c. IT systems”“未接地交流 IT 系统对地绝缘电阻 RF”