Frequently Asked Questions
Q
Is this product compatible with my system?
A
This product is designed for DC circuits (e.g., solar PV systems), supporting voltages from 250V to 1000V DC and current ratings from 1A to 63A. Please match the model to your system's voltage and current requirements. If unsure, provide your specifications, and we'll recommend the right product.
Q
How do I select the correct current rating?
A
Choose a current rating slightly higher than your actual operating current (e.g., for an 18A load, select a 20A model). This prevents overloads while avoiding nuisance tripping from startup surges.
Q
What does "Type C trip curve" mean?
A
Type C curve is suitable for moderate inrush current applications (e.g., PV inverters, motors). It trips instantly at 5-10x the rated current, tolerating short startup surges without false triggering.
Q
What is the breaking capacity of this circuit breaker?
A
The device has a rated making and breaking capacity of 6kA, providing reliable protection and safety isolation during short-circuit faults.
Q
What is the expected operating life of this device?
A
It is engineered for durability, offering a mechanical operational lifespan of up to 10,000 cycles and an electrical lifespan of up to 4,000 cycles under normal operating conditions.
Q
Can this 4-pole device be used in single-phase applications?
A
This is a 4-pole device designed for three-phase and neutral configuration systems (240/415V). For single-phase applications, it is highly recommended to use standard 1-pole or 2-pole circuit breakers matching your system's phase lines.
Bowser Electric
