DZ47S Miniature Circuit Breaker (3P 20A, Type D)
Product Introduction
Product Overview
The DZ47S miniature circuit breaker is designed for circuit protection in low-voltage distribution systems, offering reliable overload and short-circuit interruption. This 3-pole (3P) model with a 20A rated current and Type D tripping characteristic is suitable for applications requiring higher inrush current tolerance, such as motor control circuits and mixed load environments. Its compact structure and modular design ensure seamless integration into diverse electrical setups while maintaining operational stability.
Key Features
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Dual Protection Mechanism
Automatically disconnects circuits during overloads or short circuits, reducing equipment damage risks. Type D tripping curve ensures compatibility with inductive loads.
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Durable Construction
Reinforced housing materials and precision-engineered contacts enhance mechanical durability and electrical performance under frequent operations.
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Space-Efficient Design
Compact dimensions optimize panel space utilization without compromising functionality, ideal for retrofit installations.
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Clear Status Indication
Integrated toggle lever with ON/OFF markers and tripped position visibility simplifies status monitoring.
Typical Applications
- Residential/commercial distribution boards
- Industrial machinery control panels
- Lighting circuits and HVAC systems
- Temporary power supply installations
Technical Parameters
| Parameter |
Specification |
| Rated Current (In) |
20A |
| Rated Voltage |
400V AC |
| Tripping Curve |
Type D |
| Breaking Capacity |
High-performance |
| Mechanical Life |
≥20,000 cycles |
Installation Guidelines
- De-energize the circuit before installation.
- Mount vertically on DIN rail (35mm) using compatible accessories.
- Ensure proper torque (refer to terminal markings) for conductor connections.
- Perform functional test post-installation.
Safety Notes
- For qualified personnel installation only.
- Avoid exposure to excessive dust or humidity.
- Replace immediately if casing damage or abnormal heating occurs.
Bilingual Labeling Example (English)
MODEL: DZ47S TYPE: D POLES: 3P RATED CURRENT: 20A VOLTAGE: 400V AC
This product balances protection efficiency with user-friendly operation, adaptable to global electrical infrastructure requirements. Detailed operation manuals are provided with purchase.
