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What is the minimum size terminal required for the QOU and QOUR breakers with ring terminations?
Issue:
What is the size of the terminal ring blade that will fit in a QOUR breaker?

Product Line:
Circuti Breaker

Resolution:
Use single UL Listed or CSA Certified insulated ring terminal or standard barrel tongue lug only. Must be suitable for 10-32 x 3/8 in. screw, provided. Tongue lug must be insulated.
NOTE: Some manufacturers’ terminals will be too wide to fit. Terminal ring blade must be under 0.44 in. (11.2 mm) wide.

Here is the instruction bulletin 48840-218-01.

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