Products Description




| Company Information | |||
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| Mobile | +8613950166376 | ||
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Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | ABB CM-IWS.1S |
| Product ID | 1SVR730660R0100 |
| Product Type | Insulation Monitoring Relay |
| Product Series | CM-IWS Monitoring Relay Series |
| Function | Continuous monitoring of insulation resistance in unearthed IT systems |
| Compatible Systems | Unearthed AC, DC, and mixed AC/DC systems |
| Rated Control Supply Voltage | 24 – 240 V AC/DC |
| Rated Frequency | 15 – 400 Hz |
| Measuring Range | 1 – 100 kΩ |
| Relay Output | 1 changeover contact (SPDT) |
| Contact Rating | Up to 250 V AC / 4 A |
| Maximum System Voltage | Up to 250 V AC / 300 V DC |
| Terminal Type | Screw terminals |
| Mounting Type | DIN-rail mounting (35 mm rail) |
| Protection Rating | Housing IP50 / Terminals IP20 |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions (W × H × D) | 22.5 × 85.6 × 103.7 mm |
| Weight | Approximately 0.148 kg |
| Compliance Standards | IEC/EN 61557-8, UL 508, CE, RoHS |
| Indicators | LED indicators for power, fault, and relay status |
FAQ
FAQ
Q1. What is the main function of the CM-IWS.1S relay?
It monitors insulation resistance in unearthed electrical systems and provides an alarm when insulation falls below the set threshold.
Q2. What types of electrical systems can it monitor?
The relay is suitable for unearthed AC systems, DC systems, and mixed AC/DC networks.
Q3. What supply voltage does the relay require?
It operates with a wide control supply range of 24 to 240 V AC or DC.
Q4. What is the insulation monitoring range?
The device monitors insulation resistance within a range of 1 kΩ to 100 kΩ.
Q5. How is the relay installed in a control panel?
It is designed for snap-on installation on a standard 35 mm DIN rail.
Q6. What type of output contact does the device provide?
The relay includes one changeover (SPDT) contact for alarm or control signaling.
Q7. What visual indicators are available on the relay?
LED indicators show power supply status, relay state, and insulation fault conditions.
Q8. In what applications is the CM-IWS.1S commonly used?
It is widely used in industrial control panels, medical IT systems, UPS installations, and other equipment where insulation monitoring is critical.
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Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
