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The SUPCO t1166 is a 15-piece spring connector terminal service pack designed for electrical service and repair work on HVAC, refrigeration, and appliance systems. Spring connectors provide a reliable, solderless electrical connection by using spring tension to grip wire conductors securely. This pack is sized for smaller service calls where a technician needs a compact supply of terminals on hand without carrying a full bulk quantity. Licensed HVAC technicians and appliance service pros are the primary installers of this type of terminal hardware.
The t1166 service pack is well suited for residential and light commercial service applications, including HVAC wiring repairs, appliance terminal replacement, and general electrical maintenance tasks where a quick, reliable connector solution is needed. The 15-piece count makes it practical to keep in a service van or tool bag for on-the-spot repairs without excess inventory.
Designed as a general-purpose spring connector terminal replacement for use in residential and light commercial HVAC, refrigeration, and appliance wiring applications.
Spring connector terminals are installed by qualified electricians or HVAC technicians following applicable NEC guidelines. Always de-energize and lock out the circuit before replacing or installing any terminal connector. Ensure wire gauge is appropriate for the connector size before seating the conductor. Do not exceed the rated voltage or temperature limits of the connector.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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