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SIEMENS 7SR4502-2HB20-1AA0/EE RELAY

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SIEMENS 7SR4502-2HB20-1AA0/EE RELAY Specification

Phase
Single/Three Phase compatible

Connector Type
Plug-in connectors

Operating Temperature
-25C to +70C

Working Temperature
-25C to +70C

Noise Level
Low

Power Supply
AC/DC Universal

Application
Feeder Protection, Transformer Protection, Line Protection

Features
Numerical relay, multiple protection functions, communication support, configurable inputs/outputs, large LCD display, event and fault records

Output Type
Relay Output

Current Range
1A / 5A nominal (CT inputs)

Cooling Method
Natural Air Cooling

Product Type
Protection Relay

Input Voltage
24-250 V DC / 24-230 V AC (universal)

Voltage Protection
Yes

Efficiency
High operational efficiency for protection relays

Material
Plastic and Metal Housing

Storage Temperature
-40C to +85C

Weight
Approx. 2.5 kg

Digital Inputs
8 programmable inputs

Size (W x H x D)
Approx. 212 mm x 177 mm x 192 mm

Communication Protocols
IEC 61850, Modbus, IEC 60870-5-103, DNP 3.0

Protection Functions
Overcurrent, Earth Fault, Voltage, Frequency, Recloser, Under/Over voltage, Under/Over frequency functions

Insulation Voltage
2 kV AC, 1 min

Measuring Channels
3 phase current, 3 phase voltage, 1 neutral current

Firmware Upgrade
Via USB/Front port

Standards
IEC, EN, ANSI

Relay Outputs
8 configurable outputs

Display
LCD Display

Mounting Type
Flush/Panel Mount

Event/Fault Records
4096 Events, 32 Fault Records

Model
7SR4502-2HB20-1AA0/EE

About SIEMENS 7SR4502-2HB20-1AA0/EE RELAY

Redeem cutting-edge control and cost-effective reliability with the SIEMENS 7SR4502-2HB20-1AA0/EE Relay. Decorated with an unrivaled feature setsuch as LCD display, IEC 61850 support, and 8 configurable outputsthis relay finds monumental applications in feeder, transformer, and line protection. Its robust plastic-and-metal build ensures resilience while universal voltage compatibility enhances utility. Firmware upgrades via USB/front port simplify maintenance. Comprehensive event/fault records and advanced protection functions elevate safety, making this the optimal solution for sophisticated industrial settings demanding high efficiency and robust standards conformity.

Versatile Protection and Application

The SIEMENS 7SR4502-2HB20-1AA0/EE Relay is specifically designed for use in power distribution networks, transformers, and feeders. With features like 3 phase current and voltage measuring channels, 8 programmable digital inputs, and monumental event recording capacity, this relay ensures comprehensive protection. Its unrivaled compatibility with both single and three-phase systems, combined with versatile protection such as overcurrent and earth fault, makes it ideal for diverse industrial and utility environments.

Trade Terms, Packaging, and Market Reach

This SIEMENS relay is available for the export market as well as the main domestic market. Shipped in robust packaging to preserve product integrity during transit, it meets international compliance standards. Payment terms are flexible, tailored to support seamless transactions for suppliers and traders. Each order is carefully packaged and labeled for easy identification, ensuring export-quality handling that suits both local and global distribution needs.

FAQs of SIEMENS 7SR4502-2HB20-1AA0/EE RELAY:

Q: How can the SIEMENS 7SR4502-2HB20-1AA0/EE Relay be integrated into existing protection systems?

A: The relay can be panel or flush-mounted into existing systems and supports multiple communication protocols like IEC 61850 and Modbus, allowing seamless integration with modern substation automation systems.

Q: What are the key benefits of using this relay for transformer or feeder protection?

A: The relay offers high operational efficiency, advanced protection (overcurrent, earth fault, voltage, frequency), and supports real-time event and fault recording, ensuring fast diagnostics and reliable protection.

Q: Where is the SIEMENS 7SR4502-2HB20-1AA0/EE Relay commonly used?

A: It finds application in industrial power distribution, substation automation, transformer protection, and feeder line protection, meeting both utility and industrial requirements.

Q: What is the process for upgrading the relays firmware?

A: Firmware upgrades can be performed easily using the USB or front communication port, ensuring that the relay remains up-to-date with the latest features and protective capabilities.

Q: When should the event and fault records be analyzed?

A: Event and fault records, which log up to 4096 events and 32 faults, should be analyzed after any abnormal operational occurrences to aid in rapid troubleshooting and restore normal functioning.

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