The ABB REX010 (HESG324426R0001) is a high-performance numerical protection relay from ABB’s protection and automation portfolio, built for safety and control in industrial and utility power networks. It integrates multiple protection functions into a single device, ensuring fast, accurate fault detection and isolation. With flexible configuration, wide-range power supply, and robust communication, the REX010 serves as a cost-effective solution for distribution substations, motor control centers, and critical industrial loads.
.jpg)
.jpg)
.jpg)
There are still some products that have not been listed yet. For more information, please contact us. If the product model does not match the displayed picture, the actual model shall prevail. Please consult us for specific product images; We will arrange for the warehouse to take photos for confirmation. We have 76 shared warehouses worldwide, so it may take several hours to accurately respond to your message. We deeply apologize for any inconvenience caused to you. Of course, we will process your inquiry as soon as possible.
.jpg)
| Attribute | Details |
|---|---|
| Manufacturer | ABB |
| Model | REX010 |
| Part Number | HESG324426R0001 |
| Product Type | Numerical Protection Relay |
| Application | Medium/Low‑voltage distribution, industrial power systems |
| Protection Functions | Overcurrent (50/51), Earth Fault (50N/51N), Under/Overvoltage (27/59), Frequency (81H/81L) |
| Protection Curves | IDMT, Definite Time (DT), user‑configurable |
| Current Input | 1A or 5A (CT secondary), ±1–2% accuracy |
| Voltage Input | 100–240V AC/DC (PT secondary) |
| Power Supply | 24–250VDC / 100–240VAC, ≤15W max |
| Communication | Modbus RTU/TCP, Ethernet (IEC 61850 opt.), PROFIBUS DP |
| Digital Inputs | 4–16 (configurable) |
| Relay Outputs | 4–8 programmable contacts, 5A @ 250VAC |
| Operating Temperature | −25°C to +70°C |
| Protection Class | IP40 (cabinet/panel) |
| Mounting | DIN‑rail or panel‑mounted |
| Certifications | IEC 60255, UL 508, CE, ATEX (optional) |
.jpg)
Multifunctional Protection: Combines overcurrent, earth fault, voltage, and frequency protection in one unit.
High Measurement Accuracy: ±1–2% FS precision, sampling rate ≥1kHz for reliable fault detection.
Flexible Configuration: User‑defined IDMT/DT curves and customizable I/O mapping.
Wide‑Range Power Supply: 24–250VDC / 100–240VAC for global deployment.
Robust Communication: Modbus, Ethernet (IEC 61850), PROFIBUS for SCADA integration.
Harsh Environment Ready: −25°C to +70°C operation, IP40, IEC 60255 compliance.
Compact & User‑Friendly: DIN‑rail/panel mount, multilingual LCD, easy setup and maintenance.
.jpg)
Power Distribution: MV/LV substations, switchgear, and distribution feeders.
Industrial Plants: Motor control centers (MCC), pumps, fans, and critical motor protection.
Renewable Energy: Solar/wind farm grid connection and interconnection protection.
Utilities: Municipal power networks, water treatment plants, and wastewater facilities.
Commercial Buildings: Large HVAC, elevators, and backup power system protection.
Do you provide global shipping services?
Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.
2. What payment methods and currencies do you accept?
To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.
How many parts do you currently have in stock?
We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.
Who can I contact if I encounter any problems?
Our experienced customer service team will handle any issues after you place your order.