Description
The CTB Spring Operating Mechanism is an advanced solution designed for medium voltage vacuum circuit breakers, specifically the ZW32-12 model, both for outdoor and indoor applications. This mechanism guarantees a lifespan of 18,000 cycles, exceeding the IEC standard requirement of 10,000 cycles, thanks to rigorous testing including lightning impulse, power frequency withstand voltage, and partial discharge testing. The CTB-S model features manual energy storage and manual closing/opening along with overcurrent protection, while the CTB-D model incorporates motor and manual energy storage, electromagnet closing/opening, and also offers overcurrent protection. With its robust design and superior functionality, the CTB Spring Operating Mechanism meets and exceeds the IEC62271-100 standards for medium voltage circuit breakers.
Specifications
| Item | ZYJ220-53-216 | ZYJ110-53-216 | ZYJ48-53-216 | ZYJ24-53-216 |
|---|---|---|---|---|
| Rated operate voltage (V) | DC220 | DC110 | DC48 | DC24 |
| Rated power (W) | 40 | 40 | 40 | 40 |
| Normal operating voltage range | 85%-110% | 85%-110% | 85%-110% | 85%-110% |
| Rated operating current (A) | 0.5 | 1.0 | 1.8 | 4.6 |
| Motor energy storage time (S) | ≤8 | ≤8 | ≤8 | ≤8 |
Closing/Opening Electromagnet Technical Parameters:
| Rated operate voltage (V) | AC220 | AC110 | DC200 | DC110 | DC48 | DC24 |
|---|---|---|---|---|---|---|
| Rated operating current (A) | 1.36 | 3.6 | 2 | 5.3 | 10 | 20 |
| Rated power (W) | <300 | <396 | <440 | <583 | <480 | <480 |
| Coil resistance at 20°C (Ω) | 54 | 10.3 | 106 | 20.5 | 4.8 | 1.2 |
| Normal operating voltage range | Open at 65%~120% rated operate voltage; do not open when less than 30% rated operate voltage | |||||
| Close at 85%~110% rated operate voltage; do not close when less than 30% rated operate voltage | ||||||
Additional Information
Manual Energy Storage: Operated by a handle with an operational force of less than 100 N.m. The mechanism output angle is 40 degrees.
