SIEMENS 7SR1053-2JA21-2EA0/BB

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SIEMENS 7SR1053-2JA21-2EA0/BB Specification

Noise Level
<50 dB

Features
Self monitoring, fault recording, auto reclose, communication port

Operating Temperature
-10C to +55C

Working Temperature
-10C to +55C

Output Type
Digital (relay contact) / Communication output

Current Range
0.15 x In (adjustable)

Application
Feeder protection, transformer protection, motor protection

Rated Current
CT secondary: 1A/5A selectable

Phase
Single / Three phase compatible

Cooling Method
Natural air cooling

Power Supply
Auxiliary powered (24250 V DC / 24240 V AC)

Connector Type
Plug-in terminal block

Output Current
Relay contacts rated 5A

Product Type
Numerical Overcurrent and Earth Fault Protection Relay

Output Power
Relay output - not applicable

Output Frequency
50/60 Hz compatible

Input Voltage
24250 V DC / 24240 V AC

Voltage Protection
Overcurrent and Earth Fault

Material
Industrial-grade polymer housing

Storage Temperature
-40C to +85C

Weight
Approx. 1.5 kg

Relay Operating Voltage
250V AC / 30V DC Max.

Display Type
Backlit LCD

Event/Disturbance Records
10 Fault Records, 100 Event Records

Dimension
96 x 96 x 61 mm

Model Number
7SR1053-2JA21-2EA0/BB

Accuracy
IEC 60255 Standard

Communication Port
RS485 (MODBUS Protocol)

Relay Contacts
4 Changeover (NO/NC)

Protection Functions
Phase Overcurrent, Earth Fault, Cold Load Pickup, Inrush Detection, CB Failure

Mounting Type
Flush Mounted, Panel Mount

About SIEMENS 7SR1053-2JA21-2EA0/BB

The SIEMENS 7SR1053-2JA21-2EA0/BB relay is a first-string solution for industrial protection needs, offering prime performance and magnificent reliability. In demand for feeder, transformer, and motor protection, it optimizes safety through cost-effective advanced features. Its backlit LCD display, phase overcurrent, earth fault detection, and cold load pickup functions ensure robust, precise monitoring that adheres to IEC 60255 accuracy standards. Redeem valuable operational time with automatic fault recording and self-monitoring. Built in industrial-grade polymer, it supports flexible mounting, RS485 MODBUS communication, and rapid configurationmaking it a prime choice for modern electrical infrastructures.

Comprehensive Application and Special Features

Well-suited for commercial spaces, the SIEMENS 7SR1053-2JA21-2EA0/BB efficiently protects feeders, transformers, and motors. Its versatile use extends to general and specific industrial operations. This unit features auto reclose, plug-in terminal blocks, and powerful event/fault recording, making it optimal for large facilities demanding seamless protection and data logging. Advanced phase and earth fault protection ensure enhanced reliability in both single and three-phase environments.

Packaging, Market Reach, and Certifications

Products are professionally dispatched and shipped to ensure maximum protection during transit. The prime domestic market for the SIEMENS 7SR1053-2JA21-2EA0/BB includes power plants, distribution units, and commercial electrical panels. We proudly offer certified devices meeting IEC 60255 standards, ensuring quality and compliance. Each relay package is equipped with essential accessories and documentation, guaranteeing safe arrival and immediate readiness upon dispatching.

FAQs of SIEMENS 7SR1053-2JA21-2EA0/BB:

Q: How does the SIEMENS 7SR1053-2JA21-2EA0/BB enhance system safety?

A: It provides precise phase overcurrent and earth fault protection, supports cold load pickup and inrush detection, and automatically records disturbance and event data to bolster operational safety and efficiency.

Q: What are the primary applications for this protection relay?

A: The relay is primarily used in feeder, transformer, and motor protection within electrical power and industrial systems, supporting both general and specific commercial uses.

Q: When should you consider using this relay in your facility?

A: Install this relay when you require dependable protection for electrical equipment, event recording, and integrated self-monitoring within high-demand or critical infrastructure settings.

Q: Where is this product typically shipped and installed?

A: It is dispatched to domestic markets, including industrial plants, commercial panels, and utility distributions, where prime protection solutions are required.

Q: What is the process for redeeming support and technical assistance?

A: Reach out via authorized SIEMENS channels or your supplier to redeem technical help. Certified support is available for installation queries, configuration, and after-sales service.

Q: How is the SIEMENS 7SR1053 relay packaged for delivery?

A: Each unit is securely packaged with plug-in terminal blocks and documentation, ensuring safety during shipping and making it ready for immediate use upon arrival.

Q: What benefits does the communication port offer for industrial applications?

A: The RS485 MODBUS communication port enables seamless integration into facility management systems, allowing remote monitoring, configuration, and data retrieval for enhanced control and efficiency.

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