General
LBB-series molded case circuit breakers are suitable for circuits operating at AC 50/60 Hz, with a rated insulation voltage of 660V and a rated operating voltage of 660V AC. The rated operating current ranges from 12.5A to 800A. These breakers are designed for the distribution of electrical energy and for infrequent making and breaking under normal conditions. The T series provides protection against overload, short circuits, and undervoltage. This product complies with the IEC 60947-2 standard.
Technical Parameters
| Type | Rated current(A) | Pole NO. | Rated insulating voltage(V) | Rated operating voltage (V) | Arcing distance (mm) | UItimate short circuit breaking capacity(kA) | Service short circuit breaking capacity(kA) | Operation life（times） | Electrical Mechanical |
| LBB-125E | 12.5-125 | 2.3.4 | 660 | 381 | ≤30 | 15
| - | - | 7.5 | 3000 | 7000 |
LBB-125S | 25 | - | 20 | 16 |
LBB-160S | 16-160 | 0
| 35 | 8 | 20 | 18 | 4000 | 6000 |
LBB-160H | 50 | 10 | 40 | 25 |
LBB-250S | 100-250 | 35
| 10 | 40 | 18 | 2000 | 6000 |
| LBB-250M | 50 | 16 | 40 | 30 |
LBB-250H | 65 | 18 | 40 | 48 |
LBB-400S | 200-400 | 35 | 16 | 40 | 18 | 1000 | 4000
|
LBB-400M | 50 | 20 | 40 | 30 |
LBB-400H | 65 | 25 | 40 | 48 |
LBB-630S | 400-630 | 50 | 20 | 40 | 30 | 1000 | 4000 |
LBB-630M | 65 | 25 | 40 | 48 |
LBB-630H | 80 | 30 | 40 | 60 |
LBB-800S | 500-800 | 50 | 20 | 40 | 30 | 1000 | 4000 |
LBB-800M | 65 | 25 | 40 | 48 |
LBB-800H | 80 | 30 | 40 | 60 |
Yueqing Lovadon Electric Co., Ltd.
