GACIA SB6L B 1P 20A Miniature Circuit Breaker, 6kA Breaking Capacity, Type B, Single Pole, 20A, DIN Rail Mount

With a 6 kA short-circuit breaking capacity and Type B tripping characteristic, the GACIA SB6L B 1P 20A delivers dependable protection for residential and light commercial circuits. This single-pole miniature circuit breaker is engineered to interrupt overloads and short circuits swiftly, safeguarding wiring and connected equipment from damage.

Overview

The GACIA SB6L B 1P 20A is a single-module MCB designed for DIN rail mounting in distribution boards. It operates at a rated voltage of 230 V AC and a frequency of 50/60 Hz, making it suitable for standard single-phase installations. The Type B curve ensures immediate tripping at 3–5 times the rated current, ideal for general-purpose circuits with moderate inrush currents.

What stands out

• 6 kA breaking capacity (Icn) for robust short-circuit protection
• Type B tripping characteristic for reliable response to overloads
• Single-pole design saves space in distribution boards
• Screw terminals accept conductors up to 25 mm²
• Clear ON/OFF position indicator for quick status checks
• Complies with IEC/EN 60898-1 for safety and performance

Technical details

• Rated current: 20 A
• Number of poles: 1P (single pole)
• Tripping characteristic: Type B
• Short-circuit breaking capacity (Icn): 6 kA
• Rated voltage: 230 V AC
• Rated frequency: 50/60 Hz
• Mounting type: DIN rail (35 mm)
• Terminal type: screw terminals
• Terminal capacity: 1–25 mm² (solid/stranded)
• Electrical endurance: ≥ 10,000 cycles
• Mechanical endurance: ≥ 20,000 cycles
• Protection degree: IP20 (terminals)
• Energy limiting class: 3
• Operating temperature range: -25°C to +55°C
• Storage temperature range: -40°C to +70°C
• Indicator: ON/OFF position indicator
• Application: overload and short-circuit protection

Our verdict

The GACIA SB6L B 1P 20A is a solid choice for electricians and installers seeking a dependable, standards-compliant MCB. Its 6 kA breaking capacity and Type B curve cover typical residential and light commercial loads, while the compact single-pole design maximizes space in distribution boards. With screw terminals accepting up to 25 mm² conductors, installation is straightforward and secure.