What It Is & Where It Fits
The A2A200TW is a 3-pole molded case circuit breaker from ABB's A2A 250 frame, with a TMF 200-2000 trip unit. It is designed for panelboard and switchboard installation, typically protecting feeder circuits or large motor branch circuits in industrial and commercial power distribution. The TMF trip block provides thermal-magnetic overcurrent protection — thermal for overloads, magnetic for short circuits — adjustable across the 200–2000 A range.
Deployment Context
Mounts in a standard ABB A2A 250 frame cradle inside a switchboard or panel enclosure. The 3-pole configuration suits three-phase systems up to 690 VAC (typical for the frame). No IP rating is listed, so it is intended for indoor, pollution-degree-2 environments behind a gland plate or deadfront.