SENTRON Insta Contactor, 4 NO, 63 A at 400 V
The Siemens 5TT5050-2 is a SENTRON insta contactor with 4 normally-open contacts, rated for 63 A at 400 V AC — a straight motor or resistive load switch for panel builders who need four independent NO poles in a single 3-module-wide footprint. The coil accepts both AC and DC control voltage at 24 V (rated value), giving flexibility for either a 24 VDC PLC output or a 24 VAC control transformer without swapping the contactor.
DIN Rail Fit and Panel Integration
The body measures 90 mm tall, 53.5 mm wide, and 71 mm deep, with an installation depth of 64 mm — it snaps onto standard DIN rail and occupies 3 modular width units (each ~18 mm), leaving room for adjacent breakers or terminals in a crowded enclosure. Siemens specifies that spacers must be provided between units to ensure heat dissipation — at 8 W per pole in hot operating state, the contactor needs airflow or physical gap to keep the enclosure from baking adjacent components. IP20 rated — finger-safe from the front but not sealed against dust ingress; mount it inside a panel or enclosure, not exposed to washdown or outdoor weather.
Active Production and Sourcing
Available through independent distribution channels; quoted to order against the BOM quantity. Volume pricing and lead time confirmed at RFQ — no stock-holding claim, sourced per the buyer's quantity and delivery window.