BENDER IRDH275-435 Insulation Monitoring Device – IRDH275 Series
In mission-critical industrial environments — hospitals, data centers, offshore platforms, and chemical plants — an undetected insulation fault can escalate from a silent anomaly to a catastrophic arc flash, equipment failure, or fatal electric shock within seconds. Without continuous insulation monitoring, maintenance teams are flying blind, unable to detect the first sign of degradation in an ungrounded (IT) power system. The BENDER IRDH275-435 eliminates this blind spot by providing real-time, continuous insulation resistance monitoring, issuing alarms the moment resistance drops below safe thresholds — long before a fault becomes a disaster.
The IRDH275-435 is a flagship model within BENDER’s renowned IRDH275 Series, engineered specifically for IT systems operating at 24–240V AC/DC. BENDER, headquartered in Grünberg, Germany, has been the global benchmark in electrical safety technology for over 75 years. The IRDH275 Series is deployed across thousands of industrial installations worldwide, trusted by engineers who demand IEC 61557-8 compliance, robust EMC immunity, and fail-safe ground fault detection in the most demanding environments.
Technical Specifications
- Model: IRDH275-435
- Series: IRDH275
- Manufacturer: BENDER GmbH & Co. KG
- Function: Insulation Monitoring Device (IMD) for IT Systems
- System Voltage: 24–240V AC/DC
- Measuring Voltage: DC measuring principle (AMP)
- Response Value (Alarm): Adjustable
- Standard Compliance: IEC 61557-8, DIN VDE 0413-8
- Output: Relay output for alarm signaling
- Display: LED indicators for operational status and fault alarm
- Mounting: DIN rail (35mm)
- Weight: 4,460 g (device + packaging)
- Origin: Germany
Note: Specifications are based on published BENDER documentation. Always verify with the official BENDER datasheet for your application.
Key Features & Benefits
- Continuous Insulation Monitoring: Monitors insulation resistance 24/7 without interrupting system operation — no downtime required for testing.
- Early Fault Warning: Alarm triggers before a second fault can cause a dangerous short circuit, protecting personnel and equipment.
- Wide Voltage Range: Supports IT systems from 24V to 240V AC/DC, covering a broad range of industrial and medical applications.
- AMP Measuring Principle: BENDER’s proprietary Adaptive Measuring Principle ensures accurate readings even in high-capacitance networks with significant interference.
- IEC 61557-8 Compliant: Meets international safety standards, simplifying regulatory approval for your installation.
- DIN Rail Mounting: Quick, tool-friendly installation on standard 35mm DIN rails in control cabinets.
- Relay Alarm Output: Integrates seamlessly with PLCs, SCADA systems, and building management systems for automated fault response.
- Compact & Robust Design: Built for industrial environments with high EMC immunity and long service life.
Industry & Equipment Applications
- Medical Facilities: Operating theaters and ICUs where IT systems are mandatory per IEC 60364-7-710.
- Offshore & Marine: Drilling platforms, vessels, and subsea installations requiring continuous fault monitoring.
- Chemical & Petrochemical Plants: Hazardous area power distribution with strict safety requirements.
- Data Centers & UPS Systems: Protecting critical IT infrastructure from insulation degradation.
- Railway & Transportation: Traction power systems and signaling equipment.
- Renewable Energy: Solar PV and wind turbine electrical systems.
- Industrial Manufacturing: CNC machinery, drives, and motor control centers.
System Integration & Compatible Parts
The BENDER IRDH275-435 is designed to integrate within BENDER’s comprehensive electrical safety ecosystem. Compatible and complementary components include:
- BENDER EDS series — Insulation fault locators for pinpointing fault location after alarm
- BENDER RCMS series — Residual current monitoring systems for additional protection layers
- BENDER COM465 series — Communication modules for Modbus/Profibus integration
- BENDER MK series — Coupling devices for use with the IRDH275 in extended networks
- Standard 35mm DIN rail enclosures and terminal blocks
Contact our technical team at [email protected] for system compatibility verification.
Our Quality Assurance Process
At Konmask.com, every BENDER product we supply undergoes a rigorous sourcing and verification process:
- Authorized Supply Chain: We source exclusively from verified distributors and authorized channels to ensure product authenticity.
- Visual & Label Inspection: Each unit is inspected for correct labeling, part number, and packaging integrity before dispatch.
- Documentation Provided: Original manufacturer documentation, CE declarations, and test certificates available upon request.
- Traceability: Full batch and serial number traceability maintained for every shipment.
- Warranty Support: Manufacturer warranty honored; our team provides after-sales technical support.
How to Order
- Submit your inquiry via our Contact Form or email [email protected].
- Provide your required quantity, delivery destination, and any project-specific requirements.
- Receive a formal quotation within 1 business day.
- Confirm order and arrange payment via T/T, L/C, or other agreed terms.
- We handle export documentation, customs clearance support, and worldwide shipping.
For urgent requirements or large-volume orders, call us directly: +0086 19859288691
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on industrial control and automation components — this is our core expertise, not a side category.
- Global Export Experience: Serving B2B buyers across Europe, Southeast Asia, the Middle East, and the Americas with reliable logistics and documentation.
- Competitive Pricing: Direct sourcing relationships allow us to offer competitive pricing on genuine BENDER products.
- Technical Pre-Sales Support: Our engineers can help you verify compatibility and select the right model for your application.
- Fast Response: Inquiries answered within 24 hours; quotations within 1 business day.
- Trusted by Engineers: Thousands of successful shipments to industrial facilities, EPC contractors, and MRO buyers worldwide.
Frequently Asked Questions
Q: What is the difference between IRDH275-435 and other IRDH275 variants?
A: The IRDH275 series includes multiple variants optimized for different system voltages and communication options. The IRDH275-435 is configured for 24–240V AC/DC IT systems. Contact us to confirm the exact variant matches your system requirements.
Q: Is the BENDER IRDH275-435 suitable for medical IT systems?
A: Yes. BENDER IRDH275 series devices are widely used in medical IT systems per IEC 60364-7-710 requirements. Verify with your local regulatory authority for specific installation compliance.
Q: Can this device be integrated with a PLC or SCADA system?
A: Yes. The relay output allows direct integration with PLCs, SCADA, and BMS systems. For Modbus or Profibus communication, pair with a compatible BENDER COM465 communication module.
Q: Do you provide a certificate of conformity or test report?
A: Yes. Original manufacturer documentation including CE declaration and test certificates can be provided upon request for each shipment.
Q: What is the lead time for the IRDH275-435?
A: Lead time depends on current stock availability. Please submit an inquiry for a real-time availability check and delivery estimate.
Q: Do you ship internationally?
A: Yes. We ship worldwide via DHL, FedEx, UPS, and sea freight for large orders. We handle all export documentation and can provide CIF/FOB pricing.
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Contact: [email protected] | +0086 19859288691
