Can any fusible safety switch be field converted to a non-fusible switch OR vice versa?

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Issue:
Is there a field installable kit to change my fusible safety switch to a non-fusible?

Product Line:
Heavy Duty Safety Switches

Resolution:
No, neither conversion can be done. Converting a switch would be considered a violation of the NEC Article # 110.3(B) and the UL listing. Also, the switch's labeling would be incorrect.

NOTE: This would also apply to ANY Square D Canadian safety switches. It would violate the CSA listing and CEC (Canadian Electrical Code) and switch's labeling would be incorrect.