IRDH265-422 Bender

Description

Product name：IRDH265-422 Bender output module

Product details:

The Bender IRDH265-422 is an insulation monitoring device (IMD), also known as an A-ISOMETER®, part of the IRDH series. Its primary function is to continuously monitor the insulation resistance of ungrounded electrical systems (IT systems). This includes single-phase and three-phase AC systems, DC systems, and AC/DC systems, even those with significant DC-supplied loads (e.g., rectifiers, thyristor-controlled DC drives).

The device operates by superimposing a pulsating AC measuring voltage onto the system being monitored. It automatically adapts to the system’s leakage capacitance. The IRDH265-422 typically features an LED or LCD display for indicating insulation resistance values and alarm states. It is housed in a standard plastic casing suitable for DIN rail mounting or screw mounting.

Product Parameters (General, based on available information for IRDH265 series)

• Part Number: IRDH265-422
• Category: Test Equipment, Insulation Tester, Insulation Monitoring Device
• Monitored System Type: Ungrounded AC systems, IT AC systems with galvanically connected DC circuits, and IT DC systems (isolated power).
• Nominal System Voltage (Un):
  • AC: 0-793 V
  • DC: 0-650 V
• Supply Voltage: 19.2 – 84 VDC (for the device itself)
• Frequency Range: Typically 15 Hz to 460 Hz (for AC/DC systems)
• Response Value (Ran): 1 kΩ to 10 MΩ (adjustable)
• System Leakage Capacitance (Ce): Up to 1000 µF (depending on the specific version and coupling devices)
• Display: LED or LCD display for insulation values and alarms.
• Mounting: DIN rail according to DIN EN 50022 or screw mounting.
• Weight: Approximately 0.55 lbs (0.25 kg)
• Protection Class: Often IP20 (front) and IP30 (terminals)
• Outputs: Typically includes alarm relays (e.g., ALARM 1, ALARM 2) for signaling insulation faults.

Note: Specific parameters for the exact “-422” variant might vary slightly. Always refer to the official Bender datasheet or manual for the precise model.

Product Advantages

• Enhanced Safety: Provides continuous monitoring of insulation resistance in ungrounded systems, significantly improving electrical safety for personnel and equipment.
• Early Fault Detection: Detects insulation faults at an early stage, before they can lead to dangerous situations (e.g., electric shock, fire) or system downtime.
• Increased System Availability: By identifying insulation deterioration proactively, it allows for scheduled maintenance and prevents unexpected outages, contributing to higher operational reliability and productivity.
• Versatility: Suitable for a wide range of ungrounded AC, DC, and AC/DC IT systems, including those with complex loads.
• Automatic Adaptation: Automatically adjusts to the system’s leakage capacitance, simplifying setup and ensuring accurate measurements.
• Clear Indication: Features an LED/LCD display for easy reading of insulation values and alarm statuses.
• Compliance: Helps systems comply with electrical safety standards requiring insulation monitoring in IT networks.

Precautions

• Installation: Must be installed by qualified personnel according to local electrical codes and the manufacturer’s instructions.
• System Type: Ensure the device is suitable for the specific type of IT system (AC, DC, AC/DC) and voltage range being monitored.
• Single ISOMETER per System: In an interconnected IT system, only one active ISOMETER® should be connected to avoid interference or incorrect readings.
• Connection Monitoring: The device typically monitors its own connections to the IT system and earth (PE). If these connections are broken or high-resistance, an alarm (“ALARM E-KE” or “ALARM L1-L3”) may be triggered, indicating an issue with the monitoring circuit itself. These connections should be checked immediately to ensure correct insulation resistance measurement.
• Parameter Settings: Proper setting of response values (alarm thresholds) and other functional parameters is crucial for effective monitoring. These settings are typically done via function keys and displayed on the LCD.
• Maintenance: Regular functional tests and calibration as per manufacturer recommendations are advisable to ensure continued accuracy and reliability.
• Discontinued Product: As the IRDH265-422 is indicated as discontinued, consider the availability of spare parts, technical support, and compatibility with newer systems when integrating or replacing. A newer model from Bender’s current product line might be a more viable long-term solution.

Product Applications

The Bender IRDH265-422 is primarily used in applications where electrical safety and continuous operation are critical, and where ungrounded (IT) electrical systems are employed. Common applications include:

• Industrial Automation: Monitoring control circuits, auxiliary circuits, and main power circuits in factories, processing plants, and machinery to prevent unexpected shutdowns and ensure operator safety.
• Medical Facilities: In operating theaters, intensive care units, and other critical medical locations (Medical IT systems) where continuous power supply and absolute safety are paramount to protect patients and medical equipment.
• Data Centers/IT Infrastructure: Ensuring the integrity of power supplies to sensitive electronic equipment to prevent data loss and system failure.
• Renewable Energy Systems: Monitoring insulation in solar (PV) installations and wind turbines, especially in DC side applications.
• Mining and Heavy Industry: Where rugged and reliable electrical systems are required, and the risk of ground faults needs to be minimized.
• Transportation: In railway systems, marine vessels, and electric vehicles where IT networks are used for safety and operational reasons.
• Power Generation and Distribution: Monitoring insulation in auxiliary power systems and specific sections of power plants.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock.  If you don’t find the model you need, please contact us and we will provide you with an official quotation！

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
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

The following are other related models. If you can’t find the product you need, please contact us. Thank you

BENDER  IRDH375-415

BENDER  IR475LYRB-4

BENDER  W4-S140

BENDER  SED140

BENDER  IR470LYW-4021

BENDER  AGH251S

BENDER  S479(B98039001)

BENDER  IR470LYW-4013

BENDER  WS20x30

BENDER  IR140-D4-2

BENDER RCMA470LY-21

BENDER IRDH375-UFDK

BENDER IRDH375B-435

BENDER IRDH575B1-435

BENDER ISO685SFP200

BENDER RCMS490-D-2

BENDER ISOPV-335+AGH-PV-3

BENDER IRDH375-435

BENDER MK2430-12RS

BENDER IR425-D4-1

BENDER IRDH265-R4

BENDER EDS460-L-2

BENDER AGH520S

BENDER IR425-D4MIC-2

BENDER EDS3096PG

JUSTWELL PTE. LTD. sells new and discontinued products, and purchases such specialty products through independent channels. JUSTWELL PTE. LTD. is not an authorized distributor, distributor, or representative of the featured products on this website. All product names/images, trademarks, brands, and logos used on this website are the property of their respective owners. Product descriptions, descriptions, or sales with these name images, trademarks, brands, and logos are for identification purposes only and do not imply any association or authorization with any rights holders.
This article is from the official website of JUSTWELL PTE. LTD. If reprinted, please attach this link:https://www.justwellcenter.com/

All other brand or product names mentioned in this document may be trademarks or registered trademarks of their respective holders.