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Switchgear
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Category guide
- What are Switchgear?
- Switchgear controls and protects electrical circuits on vessels. Common types include Air Circuit Breakers (ACB – for main distribution), Molded Case Circuit Breakers (MCCB – for feeder circuits), Miniature Circuit Breakers (MCB – for branch circuits), Contactors (for motor control), and Motor Starters (combination contactor and overload protection).
- What are the different types of Switchgear?
- Common types include Air Circuit Breakers (ACB), Molded Case Circuit Breakers (MCCB), Miniature Circuit Breakers (MCB), Contactors.
- What standards apply to Switchgear?
- Products in this category typically reference IEC 60947-2:2019. Specific requirements may vary by application and classification society.
- Buyer requirements
- Procurement typically requires Type, Rated Current (A), Breaking Capacity (kA), and Poles (3P; 4P) to exceed prospective fault current. Voltage Rating, Trip Unit Type (Thermal-Magnetic; Electronic), and Mounting Type (Fixed; Withdrawable) are critical, as trip characteristics must coordinate with system protection requirements.