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Specifications - City of Montpelier, Vermont

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Title:<strong>Montpelier</strong> District Heating<strong>City</strong> <strong>of</strong> <strong>Montpelier</strong>, VT16475 – Overcurrent Protection DevicesIssue Date:September 28, 2012Page #:3 <strong>of</strong> 5J. ANSI C37.50 Test Procedures for Low Voltage AC Power Circuit Breakers.K. SingleSource Responsibility: Obtain similar OCPDs from a single manufacturer.PART 2 PRODUCTS2.1 MANUFACTURERSA. Manufacturers: Subject to compliance with requirements, provide products by thefollowing:1. CutlerHammer/Eaton Corporation2. CrouseHinds Distribution Equipment.3. General Electric Co.4. Siemens Energy & Automation, Inc.5. Square D Co.2.2 MOLDED CASE CIRCUIT BREAKERSA. Molded Case Circuit Breaker Characteristics – General1. Circuit breakers shall be constructed using glass reinforced insulatingmaterial. Current carrying components shall be completely isolated fromthe handle and the accessory mounting area.2. Circuit breakers shall have an over center, trip free, toggle operatingmechanism which will provide quickmake, quickbreak contact action.The circuit breaker shall have common tripping <strong>of</strong> all poles.3. The circuit breaker handle shall reside in a tripped position between ONand OFF to provide local trip indication. Circuit breaker escutcheon shallbe clearly marked ON and OFF in addition to providing International I/Omarkings.4. The maximum ampere rating and UL, IEC, or other certification standardswith applicable voltage systems and corresponding interrupting ratingsshall be clearly marked on face <strong>of</strong> circuit breaker.5. All circuit breakers shall be UL Listed for reverse connection withoutrestrictive line and load markings and be suitable for mounting in anyOVERCURRENT PROTECTIVE DEVICES 16475 3

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