20A CIRCUIT BREAKER XS50NB

Product Description

The XS50NB 20A is a Molded Case Circuit Breaker (MCCB) from the Terasaki TemBreak XS50 series, designed for protecting small-to-medium industrial power distribution circuits, motors, and control panels. It provides reliable protection against overload, short circuit, and electrical faults in three-phase systems.

This breaker is commonly used as a feed protection device in industrial panels and machinery distribution boards.

Key Features

• Industrial-grade MCCB (TemBreak XS50 series)
• Rated current: 20A
• 3-pole configuration for three-phase systems
• High breaking capacity for fault protection
• Thermal-magnetic trip mechanism (overload + short circuit protection)
• Compact design for panel mounting
• Suitable for AC industrial distribution systems up to 660V
• High mechanical and electrical endurance
• Reliable operation in harsh industrial environments
• Optional accessories: auxiliary contact, shunt trip, under-voltage release

Specifications

• Product Type: Molded Case Circuit Breaker (MCCB)
• Model: XS50NB
• Series: Terasaki TemBreak XS50 Series
• Manufacturer: Terasaki Electric Co.
• Rated Current: 20A
• Poles: 3 Pole (typical configuration)
• Rated Voltage: Up to 660V AC
• Breaking Capacity: Up to 25 kA at 220V AC (variant dependent)
• Frequency: 50/60 Hz
• Trip System: Thermal-magnetic protection
• Mounting Type: Panel mount (fixed installation)
• Frame Size: XS50 (50A frame class)
• Mechanical Life: Industrial standard high-cycle operation
• Electrical Life: Designed for long switching durability
• Application: Industrial control panels, motor protection, distribution boards, HVAC systems, small machinery feeds