Siemens 7SR1577-5MA77-2CA0
MPN7SR1577-5MA77-2CA0
Active
Voltage relay Argus 7SR157, check synchronising, case I/O and fascia: 2 VT, 3 binary inputs / 5 binary outputs, 10 LEDs, measuring input: 40 - 160 V, 50/60 Hz, auxiliary voltage: 24-250 V DC / 100-230 V AC, binary input threshold 19 V DC, comms interface: standard (USB front port, RS485 rear port) plus additional rear electrical Ethernet RJ45 (x2) (E6 case), IEC 60870-5-103, Modbus RTU, DNP3 and IEC 61850, front cover: push buttons - down and right arrows
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Product family | Reyrolle 7SR157 Argus - 2xV |
| Parameter | Value |
|---|---|
| RoHS compliant | Since: 07-04-14 |
| REACH SVHC declaration | Reach Information |
| Parameter | Value |
|---|---|
| Group code | U321 |
| Product group | 1341 |
| Product class | B: return restricted, please contact your Siemens partner/contact |
| Export control regulations | AL : N / ECCN : N |
MPN
7SR1577-5MA77-2CA0