The ABB 2TLA050005R1440 is an MKEY6 safety switch with NPT conduit entry and 2NC contacts. The 2NC normally-closed contacts provide a positive-break safety circuit — when the guard opens, the contacts break the safety chain, removing power from the guarded hazard zone. The NPT threaded conduit entry suits North American metallic conduit runs into the enclosure.
ABB 2TLA050005R1440 MKEY6, NPT, 2NC Safety Switch
MPN2TLA050005R1440
ABB 2TLA050005R1440 MKEY6, NPT, 2NC safety switch, lifecycle stage current.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
Where can I buy 2TLA050005R1440 and get a price?
This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — confirmed at quote time.
What does the description MKEY6, NPT, 2NC mean?
MKEY6 is the switch model in ABB's safety switch range. NPT indicates the conduit entry is 1/2-inch NPT threaded for North American metallic conduit. 2NC means two normally-closed contacts wired in series for a positive-break safety circuit.
MPN
2TLA050005R1440