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Genuine Protection Relay Differential Overcurrent Relay For Power Grid & New Energy

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Shanghai Fradwell Industrial Automation Co., Ltd.

City: shanghai

Province/State:shanghai

Country/Region:china

Tel:86-21-68060766

Contact Person:
Mr.Angelo Wu View Contact Details

Genuine Protection Relay Differential Overcurrent Relay For Power Grid & New Energy

Model Number	SIPROTEC 4、SIPROTEC 5、7SJ80/81/82、SIRIUS 、P1J
Certification	CE、IEC、UL、VDE、EAC、UKCA、RoHS
Place of Origin	Germany
Minimum Order Quantity	1
Price	$1-$180
Payment Terms	L/C,D/A,D/P,T/T,Western Union
Delivery Time	3-5Workday

Detailed Product Description

Protection Relay - Overcurrent & Differential Protection for Power Grid & New Energy

Protection Relay Original Genuine Overcurrent Differential Protection for Power Grid & New Energy

These genuine Siemens protection relays provide stable overcurrent and differential protection, widely used in power grids, new energy, industrial automation and infrastructure to ensure safe, reliable and long-term operation of your power system.

Industrial Protection Relays - Complete Model & Parameter List

SIPROTEC 4 Series (Medium & High Voltage Comprehensive Protection)

Series	Complete Model	Key Parameters	Typical Applications
SIPROTEC 4	7SJ61, 7SJ62, 7SJ63, 7SJ64, 7SJ66, 7SJ68	Overcurrent/directional overcurrent/feeder/motor/transformer protection; IEC 61850 supported, fault recording, DIGSI 4 configuration	Medium & high voltage power grids, substations, motor/transformer protection, industrial power distribution
SIPROTEC 4	7SA522, 7SA61, 7SA63, 7SA64	Distance protection, long line/cable protection, power oscillation blocking	Transmission lines, long-distance cables, regional power grid protection
SIPROTEC 4	7SD52, 7SD53, 7SD610, 7SD680, 7SD686	Line/transformer/generator-transformer differential protection, multi-terminal differential	Transformers, busbars, generator-transformer units, large industrial power supply systems
SIPROTEC 4	7UT612, 7UT613, 7UT633, 7UT635, 7UT682, 7UT683, 7UT686	Transformer differential protection, ratio restraint, multi-winding adaptation	Power transformers, industrial main transformers, power substations
SIPROTEC 4	7UM61, 7UM62	Generator-transformer comprehensive protection (loss of excitation/out-of-step/over-excitation)	Generator-transformer units, power plants, large industrial captive power plants
SIPROTEC 4	7SS52, 7SS60	Busbar differential protection, circuit breaker failure protection	Substation busbars, complex wiring systems
SIPROTEC 4	7RW600, 7RW680	Voltage/frequency/over-excitation protection, system splitting	Distribution networks, capacitor banks, voltage abnormality monitoring
SIPROTEC 4	7VK61	Circuit breaker management, end fault protection	Circuit breaker control, substation automation

SIPROTEC 5 Series (High-End Intelligent Protection)

Series	Complete Model	Key Parameters	Typical Applications
SIPROTEC 5	7SJ81, 7SJ82, 7SJ85, 7SJ86	Overcurrent/feeder/motor/capacitor protection, advanced fault analysis, digital twin	Smart grids, large industrial projects, new energy grid connection
SIPROTEC 5	7SL82, 7SL86, 7SL87	Line differential + distance protection, high-speed action, PMU synchrophasor	Key transmission lines, smart substations
SIPROTEC 5	7SD80, 7SD82, 7SD86, 7SD87	High-sensitivity line differential protection, multi-terminal differential	Cable lines, regional power grid differential protection
SIPROTEC 5	7UT85	Transformer differential protection, multi-winding, advanced monitoring	Large power transformers, industrial main transformers
SIPROTEC 5	7UM85	Generator-transformer comprehensive protection (loss of excitation/out-of-step/over-excitation)	Generator-transformer units, power plants
SIPROTEC 5	7SK82, 7SK85	Busbar protection, circuit breaker failure protection	Smart substation busbars
SIPROTEC 5	7VE85	Synchronizing device, grid connection control	Power plants, new energy station grid connection
SIPROTEC 5	7SX800, 7SX82, 7SX85	Universal protection, automation & measurement integration	Medium & low voltage distribution, industrial automation
SIPROTEC 5	7SY82	Universal protection, LPIT sensor compatible	Medium voltage grids, distribution automation

SIPROTEC Compact Series (Cost-Effective Compact Protection)

Series	Complete Model	Key Parameters	Typical Applications
SIPROTEC Compact	7SJ80, 7SJ81, 7SJ82	Overcurrent/feeder/motor/capacitor protection; compact size, easy installation, CFC programmable	Medium & low voltage distribution, small & medium industries, buildings, PV/wind power
SIPROTEC Compact	7RW80	Voltage/frequency/over-excitation protection, system splitting	Distribution networks, capacitor banks, voltage abnormality monitoring
SIPROTEC Compact	7SX800	Universal protection, automation & measurement integration	Compact scenarios, distribution panels

SIRIUS Series (Low Voltage Motor Protection)

Series	Complete Model	Key Parameters	Typical Applications
3RU (Thermal Overload Relay)	3RU11, 3RU16, 3RU21, 3RU51, 3RU61	Thermal overload protection; 0.1-63A; trip class 10/20/30; thermal memory	Low voltage motors, fans, pumps, conveyors, OEM equipment
3RB (Electronic Overload Relay)	3RB20, 3RB21, 3RB30, 3RB31	High-performance overload/short-circuit protection; 0.1-630A; matched with 3RT contactors	High-power motors, industrial production lines, equipment manufacturing
3RV (Motor Starter/Circuit Breaker)	3RV20, 3RV21, 3RV23, 3RV24, 3RV27, 3RV28	Motor starter/circuit breaker; short-circuit quick break (13×In); S00-S3 size	Motor circuits, machine tools, pumps & valves, small industrial equipment, control panels

P1J Series (Medium & Low Voltage Distribution Protection)

Series	Complete Model	Key Parameters	Typical Applications
P1J	P1J1135619, P1J1212891, P1J130, P1J193355, P1J222596, P1J223373, P1J223717, P1J223753, P1J223878, P1J223948, P1J31055, P1J36573, P1J368959, P1J37800, P1J39808, P1J40150, P1J446433	Digital overcurrent/feeder protection; 3-stage logic; easy installation	Medium & low voltage feeders, distribution panels, industrial plants, municipal power distribution

Application Industries

Power Grid & Substation
Industrial Automation
New Energy (PV, Wind, Energy Storage)
Municipal Infrastructure
Heavy Industry & Manufacturing
Power Generation

Frequently Asked Questions

Q: Do you have stock for regular models?

A: There is a large quantity of goods in stock.

Q: Can I order small quantities?

A: Yes, small orders for project use are acceptable.

Q: What certifications do you have?

A: CE, IEC, UL, VDE, fully compliant with international standards.

Q: Can they replace other brands?

A: Yes, can replace ABB, Schneider, Alstom similar protection relays.

Q: How long is the lead time?

A: Normally 1 weeks; some hot models 1-2 weeks.

Q: Are they 100% original and new?

A: Yes, brand new original with traceable serial number.

Q: What's the MOQ?

A: No strict MOQ, order as per your project needs.

Q: What are the main applications?

A: Power grid, industrial automation, new energy, infrastructure, oil & gas.

Q: How long is the warranty?

A: 1-2 years under normal operation.

Product Tags: Genuine Protection Relay Power Grid Differential Overcurrent Relay New Energy Differential Overcurrent Relay

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