What the 36 kA breaking capacity means for your panel
The 3VA1132-4EF32-0AA0-ZD00 is a Siemens 3VA1 IEC frame 160 circuit breaker with a 36 kA breaking capacity at 415 V (class S). That rating means it can safely interrupt a fault current up to 36,000 A without welding its contacts or rupturing the enclosure — critical for protecting downstream equipment in a high-fault installation like a transformer-fed main panel or a large motor control center. The 32 A thermal-magnetic trip unit (TM240) gives you adjustable overload protection from 22 A to 32 A and a fixed short-circuit pickup of 5 to 10 times the rated current (160 A to 320 A), so it coordinates with standard branch-circuit conductors and downstream breakers.
What the description tells a sourcing buyer
The full description flags a nut keeper kit for DC Power OEM in China — a factory-fitted accessory that retains the mounting nuts during vibration or transport. If you are replacing a breaker in an existing DC Power cabinet, this detail confirms the hardware is already included; no separate nut-retention kit to order. The 3-pole, 3VA1 frame footprint is standard for Siemens IEC switchgear, so it mounts in the same DIN-rail or panel cutout as other 3VA1 units.