BENDER IR125Y-4 Insulation monitoring device

BENDER IR125Y-4 Overview

The BENDER IR125Y-4 is an insulation monitoring device (IMD) for unearthed AC and DC IT systems. It continuously monitors the insulation resistance of the system and issues an alarm in the event of an insulation fault, thereby increasing electrical safety and system availability.

Product Detailed Description

• Function:

• Continuous monitoring of the insulation resistance in unearthed AC (IT) and DC (IT) systems (unearthed power systems).

• Automatic adaptation to system leakage capacitances.

• Two separately adjustable alarm thresholds.

• Indication of operating status and alarm messages via LEDs.

• Self-test function to ensure the device is functioning correctly.

• Optional fault location function (requires additional BENDER devices).

• Features:

• Compact design for easy installation in control cabinets.

• Universal power supply input for different supply voltages.

• Reliable measuring principle for accurate measurements even with asymmetrical loads and DC components.

• Easy setting and configuration of alarm thresholds.

• Provides normally open (NO) and normally closed (NC) alarm relay contacts for external alarm indication or system shutdown.

Product Parameters

• System Type:

• Unearthed AC IT systems (IEC 60364-4-41)

• Unearthed DC IT systems (IEC 60364-4-41)

• Rated System Voltage Un:

• AC/DC 0...300 V

• AC 0...600 V (via coupling device)

• DC 0...600 V

• Response Value Ra1 (Alarm 1):

• Adjustable range: 1 kΩ...100 kΩ

• Response Value Ra2 (Alarm 2):

• Adjustable range: 1 kΩ...1 MΩ

• Supply Voltage Us:

• AC/DC 24...240 V

• Power Consumption:

• ≤ 3 VA

• Measuring Voltage Um:

• DC max. 9 V

• Measuring Current Im:

• ≤ 1 mA

• Maximum Permitted Leakage Capacitance Ce:

• ≤ 20 μF

• Alarm Relays:

• 2 changeover contacts

• Rated voltage AC 250 V / DC 250 V

• Rated current 3 A AC / 3 A DC

• Degree of Protection:

• IP30 (housing)

• IP20 (terminals)

• Ambient Temperature:

• -25 °C ... +55 °C (operation)

• -40 °C ... +70 °C (storage)

• Mounting:

• DIN rail mounting

• Dimensions (H x W x D):

• 88 x 36 x 66 mm

• Standards:

• IEC 61557-8

Product Advantages

• Increased Electrical Safety:

• Early detection of insulation faults prevents electric shock hazards.

• Improved System Availability:

• Allows continued operation after the first insulation fault occurs, avoiding unnecessary downtime.

• Facilitates fault location, reducing repair time.

• Preventive Maintenance:

• Predicts potential faults by monitoring the trend of insulation resistance changes.

• High Versatility:

• Suitable for various unearthed AC and DC IT systems.

• Wide voltage input range.

• Easy to Use:

• Simple installation and configuration.

• Clear status indication and alarm messages.

Precautions

• Correct Selection:

• Choose the appropriate model based on the system's voltage level and leakage capacitance.

• Correct Installation:

• Follow BENDER's installation guidelines to ensure the device is correctly connected to the system.

• Parameter Setting:

• Set appropriate alarm thresholds according to the specific requirements of the system.

• Regular Testing:

• It is recommended to regularly test the function of the insulation monitoring device to ensure its proper operation.

• Compliance with Standards:

• Follow relevant electrical safety standards when designing and installing electrical systems.

Product Applications

The BENDER IR125Y-4 insulation monitoring device is widely used in various unearthed IT systems, such as:

• Medical IT Systems:

• Operating rooms, ICUs, and other critical medical areas to ensure patient safety.

• Industrial Control Systems:

• Automation equipment, robots, production lines, etc., to improve system availability.

• Uninterruptible Power Supply (UPS) Systems:

• Protecting critical loads from power outages.

• Mobile Power Systems:

• Ships, railway vehicles, special vehicles, etc.

• Photovoltaic Systems:

• Monitoring the insulation status of photovoltaic arrays.

• Building Electrical Systems:

• Buildings with special requirements, such as data centers, laboratories, etc.

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Related products:

E-mail: alex@fenoux.com

Tel.: +86 13338369201

Skype: +86  13338369201

WhatsApp: +86  13338369201