CIRCUIT BREAKER XS50NB

Product Description

The XS50NB from Terasaki Electric (TemBreak Series) is a compact moulded case circuit breaker (MCCB) designed for reliable protection of electrical distribution systems against overloads and short-circuit faults in industrial and marine applications.

It is widely used in main switchboards, motor protection circuits, and industrial power distribution panels where high breaking capacity and stable performance are required.

Key Features

• Compact moulded case circuit breaker (MCCB type)
• High breaking capacity for fault protection
• Reliable thermal-magnetic trip mechanism
• Designed for industrial and marine electrical systems
• Suitable for AC distribution networks (50/60 Hz)
• Robust construction for harsh environments
• Long electrical and mechanical life
• Available in multiple current ratings (15A–50A variants)
• Easy installation in switchboards and panels
• Standard compliance with IEC protection norms

Technical Specifications

• Product Type: Moulded Case Circuit Breaker (MCCB)
• Model: XS50NB
• Series: TemBreak XS Series
• Manufacturer: Terasaki Electric Co., Ltd.
• Rated Current: Typically 15A / 30A / 40A / 50A (variant dependent)
• Rated Voltage: Up to 660V AC
• Frequency: 50/60 Hz
• Breaking Capacity: Up to ~25 kA (at rated voltage, variant dependent)
• Poles: 2P / 3P options available
• Trip Unit: Thermal-magnetic protection
• Installation: Panel / DIN rail / switchboard mounting (model dependent)
• Operating Temperature: -5°C to +40°C (typical industrial range)
• Mechanical Life: High-endurance industrial grade
• Electrical Life: Designed for repeated switching and fault interruption
• Housing Material: Flame-retardant moulded case