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SIEMENS 7SR1053-2LA21-2EA0/BB RELAY

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SIEMENS 7SR1053-2LA21-2EA0/BB RELAY Specification

Noise Level
Low (electronic device)

Connector Type
Screw terminals

Rated Current
5A relay contact capability

Output Type
Relay Contacts

Operating Temperature
-10C to +55C

Output Current
5A (per relay contact)

Power Supply
Direct or auxiliary power supply 24-250 V AC/DC

Features
Multi-function, Numerical, Disturbance recorder, Event recorder, Fault recorder, Communication Port, IEC61850 & MODBUS

Current Range
1A/5A CT (Secondary current)

Working Temperature
-10C to +55C

Application
Feeder, Transformer, Motor Protection

Phase
3 Phase

Cooling Method
Natural air cooling

Product Type
Numerical Protection Relay

Input Voltage
24-250 V AC/DC

Voltage Protection
Yes

Efficiency
High reliability (industrial grade)

Material
ABS Plastic / Metal Housing

Storage Temperature
-40C to +85C

Weight
Approx. 2 kg

Communication Protocols
RS485, Modbus, IEC61850

Frequency Range
50/60 Hz

Protection Functions
Overcurrent, Earth Fault, Short Circuit, Inrush, Phase Loss

Number Of Outputs
Multiple relay outputs

Device Dimensions (W x H x D)
Approx. 111.8 x 177 x 174 mm

Mounting Type
Flush / Panel Mounting

Relay Type
Feeder Protection Relay

Firmware Upgrade
Supported

Display Type
LCD Display

Response Time
Fast (< 30 ms)

Disturbance Recorder
Yes

Relay Contact Rating
5A, 250 V AC

Model Number
7SR1053-2LA21-2EA0/BB

Number Of Inputs
Multiple digital/analogue inputs

Event Memory
Yes

About SIEMENS 7SR1053-2LA21-2EA0/BB RELAY

Jump on the opportunity to experience the peerless protection of the SIEMENS 7SR1053-2LA21-2EA0/BB RELAY. This first-rate feeder protection relay is engineered for top-tier performance in industrial and utility settings, offering reliable overcurrent, earth fault, and short circuit protection. Utilise this offer to enhance your power infrastructure with advanced features like a bright LCD display, multi-communication protocols (RS485, Modbus, IEC61850), and high reliability. Explore its rapid response time (<30 ms), flexible mounting, and robust ABS/metal construction for guaranteed longevity and efficiency.

Versatile Usage for Industrial Applications

The SIEMENS 7SR1053-2LA21-2EA0/BB RELAY is ideal for a range of protection applications including feeders, transformers, and motors. Designed for flush or panel mounting, it suits both new installations and upgrades. Its multi-function capabilities make it suitable for process industries, substations, and critical power distribution networks, ensuring dependable protection and operational continuity in demanding environments.

Domestic and International Market Value

Offered at the lowest price without compromising on quality, this relay is recognized for its strong market value across main domestic and international export markets. Packaged with care to ensure safe delivery, the product meets stringent industrial certifications, making it a top choice for businesses seeking reliability and certified performance globally.

FAQs of SIEMENS 7SR1053-2LA21-2EA0/BB RELAY:

Q: How does the SIEMENS 7SR1053-2LA21-2EA0/BB RELAY enhance power system protection?

A: The relay provides rapid and dependable protection against overcurrent, earth faults, short circuits, and phase loss, safeguarding critical electrical assets such as feeders, transformers, and motors.

Q: What communication protocols are supported by this relay?

A: It supports RS485, Modbus, and IEC61850 communication protocols, ensuring seamless integration with various automation and monitoring systems.

Q: When should I consider using this feeder protection relay?

A: Utilise this relay for both new installations and retrofits in industrial and utility environments where reliable protection and fast response are essential.

Q: Where can this relay be installed?

A: The relay is suitable for flush or panel mounting, making it adaptable to control panels, substations, and switchgear in diverse application places.

Q: What are the key operational benefits of this relay?

A: Key benefits include high reliability, fast response time (<30 ms), extensive memory for event and disturbance recording, and easy firmware upgrades for enhanced longevity.

Q: How is the product packaged for international export?

A: The relay is securely packaged to protect it during transit, adhering to international standards and ensuring it reaches global markets in perfect condition.

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