Overview
The ABB REX010 is an Earth Fault Protection Unit designed to detect and isolate ground faults in electrical systems, preventing equipment damage and ensuring operational safety. It is widely used across distribution networks, substations, industrial electrical systems, and renewable energy platforms.
The REX010 supports both AC and DC control voltages, providing versatility for different system architectures. It features fast response times (<30 ms) and Modbus RTU communication for real-time fault reporting and remote diagnostics. This makes it ideal for applications requiring selective, high-speed earth fault protection.
For example, in a solar power station, the REX010 can detect insulation breakdowns and initiate protective actions before equipment damage occurs.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Earth Fault Protection Unit |
| Model | REX010 |
| Operating Temperature | –25°C to +55°C |
| Dimensions | 254 mm × 203 mm × 53 mm |
| Weight | 3.5 kg |
Typical Applications
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Medium-Voltage Distribution Networks: Detects ground faults and isolates affected feeders.
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Industrial Electrical Systems: Protects motors, transformers, and switchgear from insulation failures.
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Substation Automation: Integrates with SCADA systems for fault monitoring and control.
-
Renewable Energy Systems: Ensures safe operation of solar and wind installations.
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Generator and Transformer Protection: Monitors neutral grounding and triggers alarms or trips during faults.
The REX010 is also commonly used in retrofit projects to replace legacy fault detection devices with modern, digital protection solutions.
FAQ
Q1: What voltage types does the REX010 support?
A1: It supports both AC (24–230 V) and DC (24–220 V) control voltages.
Q2: How fast does it respond to faults?
A2: It detects and reacts to earth faults in under 30 milliseconds.
Q3: Can it be monitored remotely?
A3: Yes, it supports Modbus RTU over RS-485 for remote diagnostics and control.
Q4: Is it suitable for harsh environments?
A4: Yes, it operates from –25°C to +55°C and meets IP20/IP10 protection standards.
Q5: What mounting options are available?
A5: It can be flush-mounted or surface-mounted depending on panel design.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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