Parameters:

• Input Voltage: AC100-240V, DC48-250V¹
• Frequency Range: 50/60 Hz¹
• Operating Temperature Range: -40°C to +70°C¹

Specifications:

• Protection Class: IP40 (Front Panel), IP30 (Back)¹
• Communication Interfaces: RS485, Ethernet, Modbus TCP/IP, IEC 61850¹
• Processor: Low-power Pentium III-M / Celeron Processor²³
• Front-side Bus Frequency: 133/166MHz²³
• System Memory: Onboard 256M Memory, Supports up to 768M with an additional 144 pin PC133 SODIMM RAM²³
• BIOS: 2/4M Phoenix Flash BIOS, Plug and Play, ACPI Support²³
• I/O Interfaces: 2 IDE, 6 RS-232 TTL, 1 Parallel, 6 USB 2.0, PS/2 Keyboard/Mouse, 1 RTL8100C 10/100M Ethernet Controller²³

Dimensions:

• Size: 20011050mm²³

Weight:

• Not explicitly stated in the search results.

Series:

• RET650 Series¹²³⁵

Features:

• Functionality: A powerful relay protection terminal suitable for protection and control systems of high-voltage transmission lines and substations¹
• Robustness: Unaffected by faults, very stable, can prevent incorrect operations related to DC system capacitance discharge or DC grounding faults⁴
• Protection: Provides fast and selective protection, monitoring, and control for all types of transformers, such as dual-winding and three-winding transformers, auto-transformers, shunt reactors, and step-up transformers⁵
• Ease of Configuration: Basic parameter settings are pre-configured from the factory, only requiring application-specific settings⁵
• Flexibility: Supports multiple communication protocols and allows for easy integration with other systems¹

Applications:

• Used in high-voltage transmission lines and substations for protection, monitoring, and control¹⁵