electrical switch details 1.pdf

This document is a product specification sheet for a Siemens IT-E Enclosed Switch featuring Vacu-Break and Clampmatic action components. The switch is catalog number NF-354, Series A, Type 1 enclosure, rated for 200 amperes with multiple voltage and horsepower configurations. At 240 AC volts, the switch delivers 15 horsepower in Phase 1 and 60 horsepower in Phase 3. At 480 AC volts, it provides 50 horsepower in both Phase 1 and Phase 3, and 125 horsepower total. At 600 AC volts, it delivers 50 horsepower in Phase 1 and 150 horsepower in Phase 3. The switch also supports 250 DC volts at 40 horsepower. Wire connectors accommodate copper or aluminum wire ranging from 60°C to 75°C, with specific tightening torque specifications of 248 inch-pounds for line and load connections, and 41 to 45 inch-pounds for ground connections.

The interrupting rating is suitable for circuits delivering not more than 200,000 RMS symmetrical amperes at 600 volts maximum when protected by Class R or Class T fuses. The device includes a two-pole switch configuration and is not recommended for use as a motor controller over 100 horsepower. Service equipment applications are suitable for 480Y/277V, 4W configurations with neutral W47974 as specified. The document notes this is a 2-pole switch using two outside poles, includes inspection and testing certification, and is manufactured by Siemens Energy & Automation, Inc., located in Bellefontaine, Ohio.