Transformer-protection circuit breaker, size S00
The rated voltage range spans 20 to 690 V, so it can be used on 400 V, 500 V, or 690 V transformer primaries with appropriate gG fuse backup coordination. Clearance requirements: 50 mm upwards, 0 mm forwards, 0 mm backwards, 50 mm downwards, and 30 mm at the side.
Breaking capacity and fuse coordination
The 3RV2411-1HA20-0DA0 delivers 100 kA at 240 V AC and 100 kA at 400 V AC. At 500 V AC it drops to 42 kA, and at 690 V AC to 4 kA. For transformer protection, the manufacturer specifies gG fuse backup values: 50 A at 400 V, 40 A at 500 V, and 35 A at 690 V. Those fuse ratings are the maximum upstream gG fuse that still allows the breaker to clear its rated fault current — coordination per IEC 60947-2.
Environmental and operating limits
The maximum switching rate at AC-3 duty is 15 operations per hour, and the same limit applies for AC-3e. Mounting position is any. The screwdriver shaft diameter is 3 mm, tip size 3.0 × 0.5 mm.