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SIEMENS 7SR2203-2MA77-0CA0/DD RELAY

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SIEMENS 7SR2203-2MA77-0CA0/DD RELAY Specification

Connector Type
Screw Terminal Connectors

Noise Level
< 40 dB

Power Supply
Auxiliary Supply 24-230 V AC/DC

Cooling Method
Natural Air Cooling

Features
Digital Display, Programmable Configuration, Self-diagnostics, Event Recording, Communication Port

Phase
3-Phase or Single Phase (Selectable)

Output Type
Relay Contacts (Trip and Alarm Outputs)

Operating Temperature
-20C to +70C

Current Range
1A or 5A CT Secondary (Selectable)

Power Factor
Not Applicable for Relay

Rated Current
1A/5A (CT Input)

Application
Protection of Transformers, Feeders, and Power Distribution Systems

Output Current
5A Continuous (Relay Output Contact Current)

Working Temperature
-20C to +70C

Product Type
Numerical Overcurrent and Earth Fault Relay

Output Power
Not Applicable (Relay Device)

Output Frequency
50/60 Hz (Configurable)

Input Voltage
110 - 230 V AC/DC

Voltage Protection
Overvoltage and Undervoltage Protection

Efficiency
>98% (Protection Relay)

Material
High-grade Industrial Plastic, Metal Modules

Storage Temperature
-40C to +85C

Weight
Approx. 1.5 kg

Protection Class
IP54 (Front Side)

Mounting Type
Panel Mounting

Event Storage
500 Events (Non-volatile memory)

Power Consumption
<15 W

Firmware Update
Via Communication Port

Reset Type
Manual/Remote Reset

Relay Outputs
4 C/O (Change Over) Contacts

Functionality
Overcurrent, Earth Fault, Sensitive Earth Fault, Trip Circuit Supervision

Communication Interface
RS485 Port (Modbus Protocol)

Indication
LED Status Indicators for Relay and Fault

Dimensions
177 mm x 112 mm x 130 mm (H x W x D)

Display Type
LCD Multi-line Display

Conformity Standards
IEC 60255, CE Marked

About SIEMENS 7SR2203-2MA77-0CA0/DD RELAY

Take advantage of our Grand Sale and secure the sterling SIEMENS 7SR2203-2MA77-0CA0/DD Relayyour valiant partner in power system protection. Limited stock remains for this robust relay, featuring a versatile RS485 (Modbus) communication interface and an advanced LCD multi-line display. It ensures overcurrent, earth fault, and sensitive earth fault protection, plus trip circuit supervision and reliable event storage for up to 500 events. Designed for demanding environments, it meets IEC 60255, is CE marked, and offers >98% efficiency, all in a compact, panel-mountable form. Order now to capitalize on unbeatable savings!

Versatile Application & Advanced Features

The SIEMENS 7SR2203-2MA77-0CA0/DD Relay excels across a range of protection media including transformers, feeders, and power distribution systems. Its application surface extends to both industrial and utility settings. Packed with features like programmable configuration, self-diagnostics, event recording, and manual/remote resets, it stands out with a multi-line LCD display and robust IP54 front protection, ensuring optimal reliability and control within demanding operational environments.

Packaging, Certification & Swift Delivery

SIEMENS relays arrive with secure packaging designed to resist challenging transit conditions and preserve product integrity. Each unit carries globally recognized certifications like IEC 60255 and CE marking. Stock is ready for immediate drop-off once order completion is confirmed, ensuring prompt delivery times so you can deploy your protection relay without delay. Take advantage of limited availability and enjoy seamless order fulfillment from a trusted supplier and trader.

FAQs of SIEMENS 7SR2203-2MA77-0CA0/DD RELAY:

Q: How is the SIEMENS 7SR2203-2MA77-0CA0/DD Relay installed?

A: This relay is designed for panel mounting and features screw terminal connectors, allowing easy integration into new or existing electrical panels.

Q: What communication interfaces does the relay support?

A: It supports the RS485 port with Modbus protocol, enabling seamless communication and easy firmware updates through the communication port.

Q: When can I expect delivery after placing an order?

A: With stock ready for drop-off, order completion typically leads to prompt shipment, ensuring minimal waiting time for urgent protection system needs.

Q: What key applications is this relay best suited for?

A: This relay provides comprehensive protection for transformers, feeders, and power distribution systems, making it ideal for industrial and utility environments.

Q: Where does the SIEMENS relay store event records, and in what quantity?

A: The relay boasts non-volatile memory capable of securely storing up to 500 events, enabling efficient post-event analysis.

Q: What benefits does the multi-line LCD display provide?

A: The LCD display enhances visibility, offering real-time status, fault indicators, and easy configuration for streamlined operation and maintenance.

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