7SJ5311-4EA02-1AA0/FF Siemens SIPROTEC Relay | Industrial Power
Manufacturer: Siemens
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Part Number: 7SJ5311-4EA02-1AA0/FF
Condition：New with Original Package
Product Type: Numerical Protection Relay
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Siemens 7SJ5311-4EA02-1AA0/FF SIPROTEC Numerical Protection Relay
The Siemens 7SJ5311-4EA02-1AA0/FF is a high-performance numerical protection relay from the SIPROTEC 7SJ531 series. It safeguards motors and power lines in industrial power distribution systems, offering fast fault detection and advanced monitoring. The relay integrates seamlessly with SCADA systems using IEC 870-5-103 and IEC 61850 protocols, and allows configuration through DIGSI software. Its modular hardware and software design support expansion, while the built-in graphic display provides convenient local control.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | 7SJ5311-4EA02-1AA0/FF |
| Product Type | Numerical Protection Relay |
| Series | SIPROTEC 7SJ531 |
| Measured Values | Current, voltage, power, frequency |
| Energy Metering | Active and reactive energy tracking |
| Protection Functions | Overcurrent, earth fault, voltage, frequency |
| Communication Interfaces | IEC 870-5-103, IEC 61850, RS485, PROFIBUS |
| PC Connectivity | DIGSI software |
| Auxiliary Voltage Options | 24V, 48V, 60V, 110V, 125V, 220V, 250V DC |
| Analog Inputs | 5 current transformer, 3 voltage transformer inputs |
| Digital I/O | 11 binary inputs, 5 alarm relays, 4 command relays |
| Display | Graphic display for local control |
| Operating Temperature | –25°C to +60°C |
| Storage Temperature | –40°C to +70°C |
| Protection Class | IP20 |
| Mounting Type | Panel-mounted |
| Dimensions (WxHxD) | 144 × 144 × 115 mm |
| Weight | 1.2–1.9 kg |
| Country of Origin | Germany |
| Certifications | CE, RoHS |
FAQ
Q1: Is the 7SJ5311-4EA02-1AA0/FF relay brand new?
A1: Yes, it is new with original packaging and ready for immediate shipment.
Q2: Which software configures this relay?
A2: You can configure it using DIGSI software for easy setup and diagnostics.
Q3: Can it integrate with SCADA systems?
A3: Yes, it supports IEC 870-5-103 and IEC 61850 protocols for SCADA integration.
Q4: What are the protection functions of this relay?
A4: It provides overcurrent, earth fault, voltage, and frequency protection.
Q5: Is it suitable for harsh industrial environments?
A5: Absolutely, it operates from –25°C to +60°C and is panel-mounted with IP20 protection.