標準號：ANSI C37.50-2012
中文標準名稱：開關設備.封裝式低壓交流電力線路斷路器.測試規程
英文標準名稱：Low Voltage AC Power Circuit Breakers Used in Enclosures - Test Procedures
標準類型：K31
發布日期：2012/1/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：K31
國際標準分類號：29.130.20
適用范圍：Covers the test procedures for enclosed low-voltage ac power circuit breakers as follows: 1) Stationary or drawout circuit breakers of two-or three-pole construction, with one or more rated maximum voltages of 635 (600 for units incorporating fuses), 508, and 254 V for application on systems having nominal voltages of 600, 480, and 250 V. 2) a) Unfused circuitbreakers b) Fused circuit breakers 3) Manually operated or power-operated circuit breakers with or without electromechanical or solid-state trip devices.