Motor Protection MCCB with Flat Thermal Curve
That flat thermal behavior is unusual for an MCCB; most breakers lose capacity above 40 °C, so this one buys back headroom in a crowded enclosure. The interrupting capacity reaches 330 kA at 240 V, 242 kA at 415/440 V, and 187 kA at 500 V — figures that place it in the high-fault tier for industrial distribution. Three-pole construction with built-in phase failure detection and a trip indicator.
Sizing and Coordination Notes
Maximum power loss is 46 W — relevant for thermal coordination inside a sealed MCC bucket. The basic switch core is order code 3VA2220-7MN32-0AA0; the -0AJ0 suffix adds the auxiliary switch and trip alarm configuration. If a panel was specified around a 3VA2116-5HL32-0AK0, the 200 A frame of this 3VA2220 is physically larger — verify panel cutout dimensions before assuming drop-in interchangeability.
The breaker carries the SENTRON brand and is designed to IEC/UL 60947-2 standards for molded case circuit breakers, though specific agency marks (UL, CSA, CE) should be verified on the nameplate for the target jurisdiction.
Panel Integration
Dimensions are 181 mm height × 105 mm width × 86 mm depth. No undervoltage release and no ground-fault monitoring are included; those are separate accessory add-ons if required.