The Siemens 3RK1903-2AA00 is a TB PEN terminal block purpose-built for the ET 200S distributed I/O system. It provides the PEN (protective earth neutral) connection for a starter, with dedicated terminals for the supply line and load, and mounts on the left side of the starter assembly. This is typical for a dry, enclosed panel environment.
Siemens 3RK1903-2AA00 TB PEN for ET 200S, IP20
MPN3RK1903-2AA00
Siemens SIRIUS TB PEN for ET 200S, terminal block for starter with connection for supply line and load, IP20 finger-safe front, 3RK1903-2AA00.
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Substance prohibitance | 01.05.2012 |
| Touch protection on the front acc. to IEC 60529 | finger-safe |
| Protection class IP on the front acc. to IEC 60529 | IP20 |
Product details
Frequently asked questions
What is the substance prohibitance date for this part?
The substance prohibitance date is 01.05.2012, which indicates RoHS compliance for that effective date.
What is the IP rating and touch protection?
The front protection class is IP20 per IEC 60529, and the front is finger-safe. This means it is suitable for installation in a dry, enclosed panel where no water ingress is expected.
MPN
3RK1903-2AA00