The Siemens SENTRON 3VA1220-5EF42-0HH0 is a 4-pole molded case circuit breaker rated for 200 A continuous current (Iu) with a TM240 thermal-magnetic release, designed for line protection in distribution panels where fault current can reach 187 kA at 240 V or 121 kA at 415 V. The TM240 release provides thermal-magnetic overload and short-circuit protection; the thermal element tracks the 200 A frame rating across ambient temperatures from 40 °C to 70 °C, with derating starting at 55 °C (194 A) down to 176 A at 70 °C.
Panel fit and physical integration
Dimensions are 158 mm high, 140 mm wide, and 70 mm deep — a 4-pole frame that occupies roughly the same footprint as other SENTRON 3VA breakers in this rating class.
Interchangeability with 3VA1110-5EE32-0JA0
The closest functional peer is the 3VA1110-5EE32-0JA0, a 3-pole 100 A frame. The 3VA1220-5EF42-0HH0 is a 4-pole 200 A frame — so it will not drop into a panel wired for a 3-pole 100 A breaker without busbar and cable changes. The physical width (140 mm vs the 3-pole's 105 mm) and the terminal size for 200 A conductors are different. If the panel was specified around the 3VA1110, rewiring and a larger cutout are required.