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Chint DZ158-3-125 MCB – 3P – 125A – 10kA
Chint DZ158-3-125 three pole 125 A high-current miniature circuit breaker with 10 kA breaking capacity for overload and short-circuit protection in low-voltage electrical installations.
£43.47
Why Choose the Chint DZ158-3-125 Circuit Breaker?
The Chint DZ158-3-125 is a robust three pole high-current miniature circuit breaker designed to provide dependable overload and short-circuit protection for low-voltage electrical distribution systems. As part of the trusted Chint DZ158 series, it is engineered for industrial, commercial and OEM applications where reliable circuit protection, switching and safe isolation are essential.
Its compact DIN rail mounting design allows straightforward installation within electrical distribution boards and control panels while delivering dependable electrical performance. The thermal-magnetic trip mechanism rapidly detects fault conditions, helping protect cables, switchgear and connected equipment against overloads and short circuits.
With a rated current of 125 A, a three pole configuration and a 10 kA breaking capacity, the DZ158-3-125 is ideal for protecting high-current three-phase power circuits in demanding industrial and commercial installations.
Key Advantages
- High-performance 125 A three pole circuit breaker.
- Three pole design for complete three-phase circuit protection.
- 10 kA breaking capacity for dependable fault interruption.
- Provides reliable overload and short-circuit protection.
- Suitable for switching and safe circuit isolation.
- Compact DIN rail mounting for fast installation.
Key Features
- Chint DZ158 high-current circuit breaker series.
- 125 A rated current.
- 3 pole configuration.
- 10 kA rated breaking capacity.
- Thermal-magnetic trip mechanism.
- Designed for overload and short-circuit protection.
- Suitable for switching and isolation duties.
- 35 mm DIN rail mounting.
Reliable Protection for Three-Phase Power Distribution
The Chint DZ158-3-125 automatically disconnects electrical circuits during overloads and short-circuit faults, helping to protect wiring, switchgear and connected equipment from damage. Its thermal-magnetic operating mechanism delivers dependable fault protection across a wide range of industrial and commercial electrical installations.
The three pole configuration enables simultaneous protection and isolation of all three phases, making the breaker ideal for motor circuits, machinery, distribution boards and other three-phase electrical systems.
Typical Applications
- Industrial distribution boards.
- Three-phase machinery and production equipment.
- Motor control centres.
- Commercial electrical installations.
- OEM electrical systems.
- High-current three-phase branch circuit protection.
Technical Specifications
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| Current | 125 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Breaking Capacity | 10 kA | |
| Manufacturer | Chint | |
| Series | DZ158 | |
| Model | DZ158-3-125 | |
| Product type | High-current miniature circuit breaker | |
| Rated current | 125 A | |
| Number of poles | 3P | |
| Rated voltage | 230 / 400 to 240 / 415 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Insulation voltage | 500 V | |
| Rated impulse withstand voltage | 4 kV | |
| Trip mechanism | Thermal-magnetic | |
| Protection rating | IP20 | |
| Standard | IEC / EN 60947-2 | |
| Mounting type | 35 mm DIN rail | |
| Terminal capacity | 16-50 mm² |
Frequently Asked Questions
What is the Chint DZ158-3-125 used for?
The DZ158-3-125 protects three-phase electrical circuits against overloads and short circuits while providing safe switching and circuit isolation.
What current rating does this breaker have?
This model has a rated current of 125 A.
How many poles does the DZ158-3-125 have?
The breaker features a 3 pole configuration for complete protection of three-phase electrical circuits.
What is the breaking capacity?
The DZ158-3-125 provides a 10 kA breaking capacity for dependable interruption of fault currents.
Where is this circuit breaker typically installed?
It is designed for installation on a standard 35 mm DIN rail inside distribution boards, industrial control panels and commercial switchboards.
Trusted by Electrical Professionals Worldwide
Chint DZ158 circuit breakers are trusted by electrical contractors, panel builders and maintenance engineers for dependable overload protection, reliable switching performance and long service life in demanding three-phase electrical installations.
