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This is an image of an industrial circuit breaker frame manufactured by Cutler-Hammer. The device is a JD 35k model rated for 3-pole operation at 600 VAC and 250 VDC, with a maximum interrupting capacity of 35,000 amps symmetrical at 600 volts. The frame is classified as Style 1491DB1G13 and is designated suitable for use in three-phase AC circuits and single-phase AC or DC circuits when using DC-rated poles.

The unit displays detailed electrical specifications on its label, including terminal wire size requirements ranging from 14 AWG to 1/0 for different amperage configurations, with torque specifications listed for various wire gauges. The breaker features an on/off toggle switch with a manual handle mechanism. Additional technical data visible on the device indicates voltage ratings, frequency capabilities (50/60 Hz), and interrupting ratings at different voltage levels. A modification code and RMS symmetrical amps rating are documented on the nameplate, along with standard UL certification markings.