The 1SDA064518R1: This auxiliary switch mounts directly onto the side of ABB T4 or T5 MCCB frames. The 1S51 NC contact provides a status signal — typically wired into a control circuit to indicate breaker position — without needing separate panel space.
ABB 1SDA064518R1 Auxiliary Switch, T4T5, 1S51 NC, Current
MPN1SDA064518R1
ABB 1SDA064518R1 AUXSA T4T5 1S51 NC, auxiliary switch for T4/T5 series, normally closed contact, lifecycle stage current.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Frequently asked questions
Where can I buy 1SDA064518R1 and get a price?
The 1SDA064518R1 is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time.
What is the description of 1SDA064518R1?
The ABB 1SDA064518R1 is described as AUXSA T4T5 1S51 NC — an auxiliary switch for T4/T5 breakers with a normally closed 1S51 contact.
MPN
1SDA064518R1