Products
Products
ABB Allen-Bradley ADEPT AlfaLaval
All Categories
ALSTOM AMAT B&R BACHMANN BENTLY Bosch Rexroth BAILEY CUTLER-HAMMER DEIF DANAHER Enterasys Extreme EATON ELAU EMERSON EPRO FANUC FOXBORO GE HIMA Honey Well ICSTriplex IFM Kollmorgen SIEMENS Schneider WOODWARD YASKAWA Omron YOKOGAWA MOOG MOTOROLA NI RELIANCE Rexroth SEW TRICONEX Schenider Weidmueller Mitsubishi SICK
home
3UG4615-1CR20

The Siemens 3UG4615-1CR20 is a high-precision insulation monitoring relay designed for unearthed AC/DC systems (IT systems). It continuously measures insulation resistance to detect ground faults, ensuring operational safety in critical applications such as medical facilities, data centers, and industrial power systems.

open

close

TEL：400-887-3214
Mail：jilineasyyi@outlook.com
Q Q：615739355
Parameters
Request a Quote
Return to List
Key Features & Specifications
1. Electrical Parameters
Rated System Voltage (Un): 0–250V AC/DC (IT systems)

Measuring Principle: Pulse measurement (adaptive)

Insulation Resistance Range: 1 kΩ–10 MΩ (adjustable response threshold)

Response Threshold: 10–500 kΩ (configurable)

Supply Voltage: 24–240V AC/DC (universal)

2. Protection & Monitoring Functions
Real-time Insulation Monitoring: Detects symmetrical/asymmetrical ground faults

Adjustable Delay Time: 0–10s (prevents nuisance tripping)

Fault Memory: Stores last fault event (manual reset required)

Self-Test Function: Automatic system integrity check

3. Outputs & Alarms
Relay Outputs:

1x SPDT changeover relay (5A, 250V AC)

1x solid-state relay (SSR) for fast response

LED Indicators:

Power (green)

Fault (red)

Warning (yellow, pre-alarm)

4. Mechanical & Interface
Mounting: DIN Rail (35mm)

Front-Panel Controls:

Test button for manual verification

Rotary dials for threshold/delay adjustment

Protection Degree: IP20 (enclosure)

5. Standards & Certifications
IEC 61557-8 (Insulation monitoring devices)

UL 61010-1 (Safety requirements)

Medical Standards: IEC 60601-1 (for hospital applications)

Advantages
✔ Universal Compatibility: Works with AC/DC IT systems
✔ Pre-Alarm Function: Early warning before critical faults
✔ Wide Threshold Range: Adaptable to sensitive environments (e.g., labs, ships)
✔ Low Power Consumption: <2W during operation

Typical Applications
Medical IT Systems (Operating rooms, ICU power)

Industrial IT Networks (Ungrounded power supplies)

Renewable Energy (Solar PV systems, battery storage)

Marine & Offshore (Shipboard electrical systems)