
SIRIUS 3RT power contactors
SIRIUS 3RT power contactors
Siemens three-pole power contactors for switching motors, from size S00 to S12 and up to 250 kW at 400 V, with AC, DC and AC/DC coils
کنترل و حفاظت موتور
Siemens product families in four branches, each with order codes, specifications and documents.
35 product families
11 of 35 families
Page 3 of 3

SIRIUS 3RT power contactors
Siemens three-pole power contactors for switching motors, from size S00 to S12 and up to 250 kW at 400 V, with AC, DC and AC/DC coils
کنترل و حفاظت موتور

SIRIUS 3RV motor starter protectors
Siemens motor starter protector (MPCB) with overload and short-circuit protection in one device; sizes S00 to S3, setting range 0.11 A to 100 A, motors up to 45 kW
کنترل و حفاظت موتور

SIRIUS 3RU / 3RB overload relays
Siemens 3RU2 thermal and 3RB3 electronic overload relays that mount directly under a 3RT contactor; sizes S00 to S3 and a setting range of 0.1 A to 115 A
کنترل و حفاظت موتور

SIRIUS 3RN2
Siemens thermistor relay for direct motor protection with PTC sensors in the winding, in 17.5 mm and 22.5 mm widths, with a 24 to 240 V AC/DC supply and ATEX-approved versions
کنترل و حفاظت موتور

SIRIUS 3RP25 timing relays
Siemens electronic timing relay for ON-delay, OFF-delay, flasher and star-delta duty; single-function or multifunction (13 and 27 functions), 0.05 s to 100 h, 12 to 240 V AC/DC supply
کنترل و حفاظت موتور

SIRIUS 3UG
Siemens monitoring relays for phase, voltage and current control: phase sequence and failure, asymmetry, frequency, under- and overvoltage, current and power, insulation resistance and DC loads; most models 22.5 mm wide
کنترل و حفاظت موتور
Several items to source?
Send the whole list at once; every line is matched to the maker’s order code and you get one quotation back.

SIPROTEC 4
The previous generation of Siemens digital protection relays for feeders, lines, transformers, generators and busbars; most families have been out of production since 30 September 2024 and SIPROTEC 5 is their successor

SIPROTEC 5
The current generation of Siemens digital protection relays: a modular family for protection, control and monitoring of feeders, lines, transformers, generators, motors and busbars, engineered with DIGSI 5 and communicating over IEC 61850
رلهٔ حفاظتی دیجیتال

Reyrolle 5 (7SR5)
Current generation of Siemens Reyrolle protection relays for distribution and subtransmission substations: overcurrent and feeder (7SR51), transformer differential (7SR54) and motor (7SR57) protection with IEC 61850 and cyber security as standard
رلهٔ حفاظتی دیجیتال

Reyrolle protection relays (7SR1, 7SR2, 7SR4 series)
The earlier range of Reyrolle protection relays (Argus, Duobias, Rho and DAD): models such as 7SR10, 7SR45 and 7SR46 are still active, while 7SR21, 7SR22 and 7SR242 are cancelled and substitutes, including Reyrolle 5, are named for them
رلهٔ حفاظتی دیجیتال
Has a successor
DIGSI 4 and DIGSI 5
Software for configuring, parameterising, commissioning and fault analysis of SIPROTEC relays: DIGSI 5 for SIPROTEC 5 and DIGSI 4 for SIPROTEC 4 and SIPROTEC Compact
نرمافزار مهندسی حفاظت
Contact
Send the order code or your item list and we will source it.
We answer during working hours · no sign-up