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Modular DIN Rail Products
- Miniature Circuit Breaker (MCB)
- 18mm Width DPN MCB
- Isolator Switch
- Residual Current Circuit Breaker (RCCB)
- Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
- Fuse
- Arc Fault Detection Device (AFDD)
- Surge Protection Device (SPD)
- Reclosing Device
- MCB Accessories
- Safety Breaker
- Earth Leakage Safety Breaker
- Safety Breaker with Outer Cover
- Earth Leakage Satety Breaker with Outer Cover
- Plug in Type Miniature Circuit Breaker (MCB)
- Plug in Type Residual Current Circuit Breaker with Overcurrent Protection (RCBO)
- Modular Contactor
- Relay
- Transfer Switch
- Smart Molded Case Circuit Breakers
- PV Systems
- Distribution Box
10-40A Safety Breaker With Outer Cover TDB2
Technical Data
| Standard | IEC60898 |
| Rated current (ln) | 10-40A |
| Poles & element | 2P1E |
| Tripping curve | B/C/D |
| Rated voltage (Ue) | 110/230V |
| Rated short-circuit breakingcapacity (lcn) | 1.5KA |
Product Overview
The safety circuit breaker is an overload and short-circuit protection device specifically designed for low-voltage distribution systems, integrating precise protection and safety control. Utilizing thermomagnetic trip technology, it not only provides inverse-time protection during circuit overloads but also instantly interrupts the circuit when short-circuit faults occur, effectively preventing electrical fires and equipment damage. Its core value lies in combining sensitive protection characteristics with high breaking capacity, ensuring electrical safety and system reliability in residential, commercial, and industrial environments.
Core Functions
Precise Overload Protection: When line current exceeds the rated value and persists, the bimetal strip bends due to heat, triggering trip mechanism to prevent line overheating risks
Instantaneous Short-Circuit Interruption: Upon detecting short-circuit currents, the electromagnetic release activates immediately, breaking the fault circuit within milliseconds
Safe Operation Guarantee: Features rapid arc extinguishing design and visible breakage indication, ensuring operator safety and clear status identification
Flexible Configuration Application: Offers 1P-4P multiple pole configurations, supporting rail mounting to adapt to various distribution scenarios
Main Application Fields
Residential Buildings: Main switches for household distribution boxes, lighting circuit protection.
Commercial Spaces: Distribution cabinets in shopping malls and office buildings, power control for air conditioning units.
Industrial Production: Power supply protection for mechanical equipment, production line distribution systems.
Public Facilities: Power distribution safety in schools and hospitals, venue lighting control.
New Energy Applications: Circuit protection for energy storage systems, charging pile distribution circuits.
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Modular DIN Rail Products
Smart Molded Case Circuit Breakers
PV Systems
Distribution Box

