Uncompromising Safety: Advanced DC Insulation Monitoring Device for High-Voltage IT Systems
Purchasing an Insulation Monitoring Device (IMD) is a critical decision. Product quality and performance are paramount.
As a supplier, Instrava will help you select the most suitable product from your perspective.
In China’s vast market, we select suitable manufacturers to provide you with in-stock products or customized solutions to meet your project needs.
Our products are sold globally and comply with relevant national certification standards such as CE, IEC, EAC, UL, TUV, and EMC.
Quote delivery time depends on your product requirements. For in-stock products, we will provide a quote within 1-2 days. Special requirements will need to be discussed in detail before a quote is provided.
In-stock products will ship within 3-5 days. Customized products or large volume orders require separate negotiation.
Power Monitoring & Control Description
Insulation Monitoring Device is a device for seamless remote monitoring of the status of ungrounded DC (IT) systems.
The presents an advanced solution for continuous insulation monitoring in unearthed (IT) DC systems, engineered to meet the rigorous demands of modern electrical infrastructure.
Supporting a wide voltage range from DC 100V to 1000V, this device serves as a critical safety barrier for high-voltage environments. By selecting only proven, high-performance technology, Instrava ensures your operations are protected by a device that offers real-time measurement of both positive and negative pole insulation resistance.
Whether in EV charging or industrial power distribution, this curated instrument provides the reliability and confidence required for mission-critical applications.
Intelligent Fault Detection in Complex DC Environments
This DC insulation monitoring device is specifically designed to maintain absolute accuracy despite the inherent challenges of high-voltage networks. It provides a comprehensive view of system health, ensuring that even the slightest insulation degradation is captured before it escalates.
Adaptive Capacitance Technology: The device features automatic adaptation to system leakage capacitance up to 5μF. This ensures stable measurements in large-scale systems where capacitive interference often compromises standard monitoring equipment.
Symmetrical & Asymmetrical Monitoring: It delivers precise real-time data for both poles, maintaining accuracy regardless of DC voltage fluctuations or asymmetry. This makes it an ideal choice for EV/HEV DC charging systems and rail transit networks.
Rapid Fault Response: With a first-reading update time as fast as 0.7s, the system allows for near-instantaneous detection of ground faults, significantly reducing the risk of equipment damage or hazardous leakage currents.
Power Monitoring & Control Parameter
| Parameter | Value | ||
| Power supply | 10-30VDC, Power 3W | ||
| DC voltage range | 100V~1000V | ||
| DC voltage
measurement accuracy |
≤2V+0.3% | ||
| Insulation resistance
measurement range |
1KΩ~10MΩ
(DC system voltage:100V~1000V) |
||
| Max system leakage capacitance | 0-5μF | ||
| Insulation monitoring accuracy
((When: DC voltage:100V-1000V) |
CY range | Resistance range | Accuracy |
| 0~0.8μF | ≤60kΩ | ≤3kΩ | |
| 60kΩ<R<1MΩ | ≤5% | ||
| 0.8μF ~3μF | ≤60kΩ | ≤6kΩ | |
| 60kΩ<R<1MΩ | ≤20% | ||
| Insulation resistance value
update time after turning on |
After insulation monitoring is turned on, the time until the effective resistance value can be read for the first time | 0.7s~2s | |
| Insulation resistance value
update time |
Switch the insulation resistance until the module can read the switched insulation resistance value. | 0.5s~3s | |
| Insulation monitoring
function switching times |
50*105 times | ||
| Off-line withstand voltage test | <2mA | ||
| Digital output (DO) | 1*DO, passive dry contact, SPST
Load capacity: 4A@250Vac, 4A@30Vdc |
||
| Digital input (DI) | 2*DI, 0.25mA@short circuit | ||
| Communication | RS485/ Modbus RTU | ||
| Standard | IEC 61557-1: 2018; IEC 61557-8: 2018 | ||
| Dimension | Standard 35 mm DIN rail mounting
Dimensions (W × H × D): 72 × 110 × 66 mm |
||
| Storage temperature | -55°C~90°C; ≤90%RH (non-condensing, non-corrosive), Altitude: ≤3500 m | ||
| Operating temperature | -40°C~75°C; ≤90%RH (non-condensing, non-corrosive), Altitude: ≤3500 m | ||
Withstand voltage test
| Voltage injection point | Maximum voltage rating | Time |
| DC+/DC- to GND | 4200VDC/3000VAC | ≤1min |
| Power supply +/- to GND | 3500VDC/2500VAC | ≤1min |
| RS485 A/B to GND | 3500VDC/2500VAC | ≤1min |
| DC+/DC- to Power supply +/- | 4200VDC/3000VAC | ≤1min |
| DC+/DC- to A/B | 4200VDC/3000VAC | ≤1min |
Instrava OEM/ODM
Tailored Sourcing & Customization: Getting You the Exact Product You Need
As your trusted supplier and sourcing partner, we bridge the gap between your custom requirements and China’s vast manufacturing capabilities.
Finding the right product in a massive supply chain can be challenging. That is where we step in.
As a curated industrial supplier, our core value is simple: we stand in your shoes to help you procure the most optimal products. Whether you are an EPC contractor needing specialized technical compliance, an OEM equipment manufacturer looking for custom branding, or an industrial distributor/trader seeking competitive edge, we customize and tailor products to fit your exact procurement needs.
How We Customize to Fit Your Procurement Needs
For EPC Contractors & Engineers: We custom-configure instruments and devices to match your precise datasheets—tailoring process connections, exotic materials, signal protocols, and managing third-party calibration and testing so you get project-ready solutions.
For OEM Equipment Manufacturers: We provide comprehensive OEM/ODM customization, including custom housing, labeling, branding (private labeling), and tailored technical specifications to seamlessly integrate with your machinery.
For Industrial Distributors & Traders: We offer flexible customization in packaging, product ranges, and technical parameters, helping you differentiate your portfolio and win more local bids.
Why Partner with Us for Custom Sourcing?
One-Stop Engineering Alignment: You don’t have to deal with multiple factories. We translate your technical requirements into precise manufacturer blueprints.
Strict Quality & Compliance Safeguard: We oversee the entire customization and production process in China, ensuring the final customized product meets your local standards and certifications.
Our Ultimate Value: We don’t just sell what’s on the shelf. We find, customize, and deliver the most suitable and cost-effective product for your unique application.
What is the process Insulation Monitoring Device for from Instrava supplier ?
1. Inquiry (We will respond to your inquiry within 24 hours to confirm specifications and initiate the process.)
2. Quotation (Quotation timelines vary based on the project type and your specific requirements. Standard stock items are quoted within one day, while special orders require three days or a mutually agreed-upon timeframe.)
3. Product Selection (We will present 3–5 product options and pricing for your approval. During this stage, we verify the manufacturer’s production capabilities and relevant national certifications.)
4. Contract, Prepayment, and Production (A 40% prepayment is required to initiate production at a qualified facility. For stock items, we promptly arrange for product testing and packaging.)
5. Interim Payment (Upon successful completion of production and quality inspection, the next 50% of the total amount is due. For stock items, this payment is made after packaging is complete.If the transaction amount does not exceed $50,000, the remaining 60% is paid.)
6. Shipment (You may designate a freight forwarder, or we can arrange shipping for you.)
7. Receipt of Goods (Our Quality Guarantee: When your cumulative order value reaches $50,000, you pay the remaining 10% only after receiving and verifying the product quality. We let our quality do the talking.)
8. After-Sales Service (We actively address and resolve issues through both online and offline channels. We place great importance on after-sales support, as it reflects our responsibility and reputation—the foundation of Instrava’s long-term growth.)
What are the advantages of buying products from Instrava supplier ?
1. Compared to factories, we can more objectively and fairly evaluate the pros and cons of our products and compare them with products from different manufacturers.
2. We offer a wider selection of product types, ensuring you get the best value for your money (because we compare prices from numerous factories and understand the price range of products).
3. We charge a 3-5% service fee, saving you significant time in finding and comparing products.
What types of industrial automation instruments products can you purchase from Instrava?
Power Monitoring & Control: Power Quality Analyzer, Smart Energy Meter, Current & Voltage Transmitter, Busbar Temperature Monitoring System, Insulation Monitoring Device, IDC / Al Data Center Monitoring System
Power Transformer:1OKV~220KV Oil-immersed Power Transformer, Below 35 kV Oil-immersed Power Transformer, Dry-type Transformer, Pole Mounted Transformer, Pad Mounted Transformer, UPS Isolation Transformer, Auto Transformer etc.
How to ensure the reliability of the purchased products?
Our customer-centric philosophy prioritizes their procurement needs.
1. Initially confirm the manufacturer based on product pricing and the strength and qualifications of the production factory.
2. Verify the manufacturer’s production environment through video and on-site inspections to check the compliance of the entire product manufacturing process.
3. Ensure post-production product testing and retain data and video evidence from the verification process(testing and verification methods vary depending on the product).
How does Instrava ensure product protection and physical safety during cross-border shipping?
Firstly, we confirm the packaged products with the factory (different products require different packaging and shipping methods. Heavy equipment and bulk shipments are securely secured within sea freight containers using custom-designed engineering steel frames, heavy-duty multi-layer wooden crates, and industrial-grade vacuum rust-proof bags. Precision instruments are protected against impacts and maintained in a stable position; the factory has extensive experience in this area. Custom labels are affixed to the outer packaging).
Secondly, we maintain communication with the freight company to confirm the condition of the goods and advise them to handle the loading and unloading processes with care.
What warranty policies and after-sales technical support does Instrava offer to international customers?
1. Instrava offers a comprehensive 12 to 24-month warranty (specific warranty period depends on the product line), covering all manufacturing and component defects.
2. When online technical support is needed, customers can connect with factory engineers online. Real-time guidance is provided for installation, on-site calibration (for instruments), and commissioning. When on-site engineer support is needed, we will arrange for an engineer to visit the site.
3. In the event of component issues, we will ship replacement parts via international express delivery (DHL/FedEx) to minimize your project downtime.
4. Whether a product requires replacement or repair will be clearly stated in the purchase contract.
Why Trust Instrava?
We select manufacturers from a neutral, impartial standpoint, always with your best interests in mind.
Our very existence depends on helping you source the products that are the perfect fit for your needs.
Based in China, we are able to conduct on-site inspections of production environments and product quality firsthand.
We help you avoid intermediaries posing as factories.
We facilitate smoother after-sales support, eliminating time zone issues and the delays often associated with dealing directly with factories.
Our multilingual team ensures effective communication.
For a trading startup, every interaction with a client is a precious opportunity—a sign that you are willing to place your trust in us and give us the chance to prove ourselves.
In the digital age, while information is easily accessible, misconceptions often cloud the trust between people.
Instrava relies entirely on trust; it is our core philosophy and the foundation of our existence in society. It is the fundamental basis for our long-term growth and our commitment to serving the community.
Please place your trust in us.
