Chint DZ 158 1 Pole 125 Amp Miniature Circuit Breaker

The Chint DZ158 1-Pole 125 Amp MCB is a high-capacity, compact protective device designed for use in low-voltage distribution systems. It provides reliable protection against overloads and short circuits, making it suitable for industrial, commercial, and railway electrical applications where single-phase circuit protection is required.

Key Specifications:

• Model: DZ158

• Number of Poles: 1 (Single Pole)

• Rated Current (In): 125 Amps

• Rated Voltage (Ue): 230/240V AC

• Frequency: 50/60 Hz

• Breaking Capacity: Up to 6kA or 10kA (depending on variant)

• Tripping Curve: Typically available in B, C, or D characteristics for different load types

  • C Curve is common for general industrial and railway applications

• Standard Compliance: Conforms to IEC/EN 60898-1

• Mounting: DIN rail mountable for easy integration in control panels

• Terminal Capacity: Suitable for cable sizes up to 35mm²

• Connection Type: Screw terminal with secure clamping

Features:

• High current-carrying capacity (125A) in a compact single-pole design

• Quick and reliable operation under fault conditions

• Flame-retardant housing for enhanced fire safety

• Long mechanical and electrical life (typically >10,000 cycles)

• Clearly visible ON/OFF indication window

• Maintenance-free and easy to replace

Typical Applications in Railway Sector:

• Protection of single-phase loads in electrical control panels and trackside equipment

• Circuit protection for auxiliary power systems, signaling devices, and lighting

• Use in OHE (Overhead Equipment) switching panels or relay rooms