The Siemens SENTRON 3VA2140-5MN32-0DH0 is a 3-pole molded case circuit breaker (MCCB) designed specifically for motor protection, carrying a continuous current rating of 40 A across the full ambient range from 40 °C to 70 °C — no derating needed in a warm panel. Its interrupting capacity reaches 187 kA at 240 V AC, stepping down to 121 kA at 415 V and 440 V, then to 75.6 kA at 500 V, and 3.7 kA at 690 V. The basic switch assembly carries order code 3VA21405MN320AA0.
The 3VA2140-5MN32-0DH0 occupies a footprint of 105 mm width × 86 mm depth × 181 mm height — a standard SENTRON 3VA frame size that fits DIN-rail or screw-mounted panel layouts common in motor control centers. The 105 mm width (4.13 in) matches the three-pole form factor; verify gland-plate cutouts and phase-spacing if retrofitting into an existing MCC bucket. Maximum power dissipation at rated load is 4.1 W, which contributes negligible heat to the enclosure for thermal qualification (IQ/OQ) documentation.