IEEE C37.13.1-2006

The scope of this standard is to provide requirements for low-voltage (600 V (ac) and below) definite purpose switching (DPS) devices (other than power circuit breakers) for use in metal-enclosed, low voltage, power circuit breaker switchgear described in IEEE Std C37.20.1-2002.1 These switching devices may be used in motor control or other repetitive duty applications and have the following characteristics: a) Drawout type, three-pole construction b) Integral current-limiting fuses for short-circuit protection c) Power operated, with integral or separately mounted overcurrent protective device In this standard, the term “DPS device” denotes a definite-purpose switching device conforming to the requirements of this standard.