Description
The Siemens BQ3B040L is a low voltage molded case circuit breaker engineered to deliver dependable overcurrent and short-circuit protection in commercial and industrial electrical systems. Designed for demanding HVAC and building mechanical applications, this 3-pole breaker operates at 240V and provides 40-ampere rated current capacity in a compact, durable molded case housing.
Key Features
- 3-pole molded case circuit breaker configuration
- 240V AC rated voltage for low voltage applications
- 40-ampere continuous current rating
- Provides reliable overcurrent and short-circuit protection
- Compact molded case design for panel and enclosure installation
- Suitable for commercial and industrial HVAC electrical systems
- Siemens quality construction for long service life
Application
The BQ3B040L is well-suited for use in load centers, panelboards, and electrical enclosures where robust overcurrent protection is required. It is commonly used to protect HVAC equipment, motors, and other electrical loads in commercial and industrial environments.
Specifications
- Brand: Siemens
- Model / SKU: BQ3B040L
- Voltage Rating: 240V AC
- Amperage Rating: 40A
- Poles: 3-Pole
- Type: Low Voltage Molded Case Circuit Breaker







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