Description
Tomzan 2-Pole DC Miniature Circuit Breaker (16A–63A Series)
The Tomzan 2-Pole DC Breaker is a compact, high-performance protection device engineered for direct current circuits in solar PV systems, battery storage, EV charging setups, and other low-voltage DC power applications. Available in a rating range from 16A to 63A, this breaker series offers flexible current protection to match a wide variety of system sizes and load requirements.
Key Features
- Rating Range: 16A, 20A, 25A, 32A, 40A, 50A, 63A (2-pole configurations)
- Poles: 2P (double-pole) design for positive and negative line disconnection, ensuring complete isolation of DC circuits
- Voltage Rating: Typically rated for DC systems up to 1000V depending on model variant (please confirm exact voltage class with datasheet)
- Breaking Capacity: Engineered to safely interrupt DC fault currents, minimizing arc formation common in DC switching
- Mounting: Standard 35mm DIN rail mounting for easy integration into existing distribution boards and combiner boxes
- Trip Curve: Thermal-magnetic tripping mechanism (commonly C-curve) providing reliable overload and short-circuit protection
- Enclosure Material: Flame-retardant, high-impact resistant housing (UL94 V-0 rated plastic)
- Terminal Type: Screw-type terminals for secure and reliable cable connections
- Indicator: ON/OFF toggle switch with clear visual status indication
Applications
- Solar PV array protection (string/combiner boxes)
- DC distribution panels
- Telecom and industrial DC power systems
Benefits
- Reliable overcurrent and short-circuit protection tailored for DC arc characteristics
- Compact 2-pole design saves panel space while isolating both poles simultaneously
- Wide amperage range allows standardization across multiple project types
- Durable construction suited for long-term outdoor/indoor installations
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