NC100H C63A
Product Name
Schneider Electric NC100H C63A 3-Pole Thermal-Magnetic Miniature Circuit Breaker (MCB)
(Naming convention breakdown for Schneider NC100H-series MCBs:
- NC100H: Identifies the module as part of Schneider’s NC100H series—high-performance miniature circuit breakers optimized for industrial-grade reliability (distinguished from residential-focused series like Acti9).
- C: Specifies the “C-type trip curve”—designed to handle moderate inrush currents (5–10× rated current), ideal for inductive loads like small motors, pumps, and lighting systems .
- 63A: Denotes the rated current of 63 amps—the maximum continuous current the breaker can carry without tripping .
- Core positioning: Acts as the “frontline electrical safeguard” in low-voltage distribution systems, preventing equipment damage and fire hazards caused by overloads or short circuits.
2. Product Description
The Schneider Electric NC100H C63A is a rugged, industrial-grade miniature circuit breaker engineered to address low-voltage system protection challenges in manufacturing plants, data centers, commercial buildings, and critical infrastructure (e.g., power plants, water treatment facilities). As a core component of Schneider’s low-voltage protection ecosystem, it integrates thermal-magnetic trip technology and robust mechanical design to deliver four mission-critical capabilities:
2.1 Dual Protection Mechanism
Shields circuits from both gradual overloads and sudden short circuits:
- Thermal Protection: Uses a bimetallic strip to detect prolonged overloads (e.g., 120% of rated current) and trip within minutes, preventing overheating of wires and equipment .
- Magnetic Protection: Employs an electromagnet to respond instantly (<10ms) to short-circuit currents (5–10× rated current for C-type curve), limiting damage from arc flashes .
- Trip-Free Mechanism: Ensures the breaker cannot be manually held “on” during a fault, eliminating intentional bypass of safety protocols .