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H A Electrical And Switchgear
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Siemens SIPROTEC 7SJ66 Protection Relay

Name: Siemens SIPROTEC 7SJ66 Protection Relay
Brand: H A Electrical And Switchgear

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MOQ : 1 Piece

Siemens SIPROTEC 7SJ66 Protection Relay Specification

Coil Voltage
24 V DC / 48 V DC / 110 V DC (for trip/output relays)

Working Temperature
-10C to +55C

Coil Power
Approx. 1.2 W

Dielectiric Strength
2 kV AC, 1 min between all electrical circuits and earth

Ambient Temperature
-25C to +70C

Contact Form
SPDT (Single Pole Double Throw)

Contact Resistance
< 50 m

Contact Material
Silver alloy

Mechanical Life
> 10 million operations

Power Consumption
Less than 20 VA

Protect Feature
Overcurrent, earth fault, voltage, frequency, directional protection, breaker failure protection

Product Type
Numerical Protection Relay

Insulation Resistance
> 100 M

Theory
Numerical microprocessor-based protection

Usage
Protection, control, measurement, and automation in medium and high voltage power systems

Contact Load
8 A at 250 V AC, resistive

Operate Time
Fast-acting, typically < 20 ms

Terminal Type
Screw terminal / Plug-in terminal blocks

Rated Voltage
110 V AC / 220 V AC / 250 V DC

Supply Terminal
Rear side connectors

Size
1/2 x 19 inch, 4 U high

Color
Grey

Dimension (L*W*H)
Approx. 193 mm x 187 mm x 130 mm

Weight
Approx. 2.1 kg

Number of Binary Inputs/Outputs
12 DI / 8 DO (expandable)

Standards Compliance
IEC 60255, EN 60255, CE mark approved

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

Display Type
Graphic LCD display with LED indicators

Event/Disturbance Recording
Integrated fault and event recorder

Password Protection
Parameterization and access control

Clock Synchronization
IRIG-B, SNTP supported

Firmware Update
Possible via front port or communication interface

Mounting Type
Flush mounting (panel) or surface mounting

Siemens SIPROTEC 7SJ66 Protection Relay Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash in Advance (CID)

Supply Ability
10 Pieces Per Month

Delivery Time
5-7 Days

Main Domestic Market
All India

Siemens SIPROTEC 7SJ66 Protection Relay About

Unlock unparalleled reliability and efficiency with the prodigious Siemens SIPROTEC 7SJ66 Protection Relay. Engineered for protection, control, measurement, and automation in medium and high voltage environments, this valuable device supports a wide range of communication protocols including IEC 61850, DNP 3.0, and Modbus RTU. With impeccable features like event recording, password protection, and firmware updates, its graphic LCD and LED indicators ensure intuitive operation. Enjoy the best price and remarkable performance-ideal for both panel and surface mounting. Experience the next level of dependable power system management.

Commercial Application Excellence

The Siemens SIPROTEC 7SJ66 Protection Relay is extensively used in commercial and industrial power networks for safeguarding transformers, generators, and other critical equipment. Used as a core component in protection panels, it seamlessly integrates in medium and high voltage substations. Its robust design allows for deployment in utility control rooms, manufacturing plants, and power distribution centers, ensuring reliable power management and system security at diverse sites of application.

Sample Policy and Delivery Assurance

Siemens SIPROTEC 7SJ66 samples are available upon proposal amount agreement, enabling clients to evaluate its advanced functions before ordering larger quantities. Secure shipping and meticulous packaging guarantee the relay is delivered safely to your project location. Delivery time is typically prompt, with most orders fulfilled within a standard lead period-ensuring rapid access to this high-performance protection solution for your operational needs.

FAQ's of Siemens SIPROTEC 7SJ66 Protection Relay:

Q: How does the Siemens SIPROTEC 7SJ66 enhance power system security?

A: The SIPROTEC 7SJ66 offers comprehensive protection features such as overcurrent, voltage, earth fault, frequency, and breaker failure protection. Integrated access control and password protection further safeguard settings and system operation.

Q: What communication protocols are supported by this relay?

A: This relay supports IEC 61850, IEC 60870-5-103, Modbus RTU, DNP 3.0, and PROFIBUS, ensuring seamless integration with modern energy management and automation systems.

Q: Where is the SIPROTEC 7SJ66 typically used?

A: It is widely deployed in medium and high voltage substations, industrial power systems, and utility networks for reliable protection, control, and automation purposes.

Q: What is the process for obtaining a sample unit?

A: Samples are provided upon agreement of the proposal amount. Once requested, the relay is securely shipped to your specified location for trial or evaluation.

Q: What benefits do event and disturbance recording offer?

A: Integrated fault and event recording enable swift diagnostics, improved incident analysis, and optimized system reliability-minimizing downtime and enhancing operational decision-making.

Q: When is firmware update possible for this relay?

A: Firmware updates can be carried out via the front port or communication interface, allowing for timely upgrades and enhanced functionality without removing the relay from service.