SQUARE D 9422TDF63 Fusible Disconnect Switch 60 A 63

Industrial Fusible Disconnect Switch

The SQUARE D 9422TDF63 is a fusible disconnect switch rated at 60 A for interrupting power to industrial circuits and equipment. It is built for electricians and maintenance technicians who need a visible, lockable means of isolation during service or emergency stop situations. The unit accepts Class H, J, K and R fuses for overcurrent protection. It carries UL Recognized and CSA certifications for code-compliant installations.

3PST Contact Form Limits

The switch uses a 3PST contact form, so it opens all three poles simultaneously but provides no auxiliary contacts for status signalling or control-circuit interlocking. Its standard-duty rating suits typical motor and heating loads, yet it is not intended for high-frequency switching or severe-duty environments. Installers must verify that the available fault current does not exceed the interrupting rating of the chosen fuse class. No additional control-voltage terminals are provided.

60 A Capacity and Headroom

At 60 A the device comfortably handles standard three-phase motor and resistive loads within its fuse-class limits. Headroom is defined by the selected Class H, J, K or R fuse; once load current approaches the fuse rating the disconnect offers no additional overload margin. It is not suited for applications requiring higher continuous current or for circuits where a larger frame size is mandated by code. The switch provides no built-in fuse monitoring or blown-fuse indication.