Eaton FAZ-B16/1 Miniature Circuit Breaker MCB, 16 A, 1-Pole, Type B, 6 kA (278535)

With a 6 kA breaking capacity and a compact 1-pole design, the Eaton FAZ-B16/1 delivers reliable overcurrent protection for branch circuits in residential and commercial installations. This miniature circuit breaker (MCB) trips at 16 A with a Type B characteristic, ensuring fast response to short circuits while tolerating normal inrush currents.

Overview

The FAZ-B16/1 is part of Eaton's proven FAZ series, engineered for DIN rail mounting and available with a wide range of accessories. It meets EN 60898-1 and IEC 60898-1 standards, making it suitable for use in distribution boards, sub-distribution panels, and final circuits. The breaker's thermal-magnetic trip mechanism provides dependable protection against overloads and short circuits.

What stands out

• Type B tripping characteristic (3-5 x In) – ideal for residential and light commercial loads
• 6 kA rated breaking capacity per EN 60898 – robust protection for most low-voltage networks
• Energy limiting class 3 – reduces let-through energy, protecting downstream equipment
• IP20 terminal protection and IP40 front protection – safe for standard indoor use
• Wide terminal capacity (1-25 mm² solid, 1-16 mm² stranded) – flexible wiring options

Technical details

• Number of poles: 1
• Rated current (In): 16 A
• Rated voltage (Ue): 230/400 V AC
• Rated breaking capacity (Icn): 6 kA
• Frequency: 50/60 Hz
• Mounting: DIN rail (35 mm)
• Terminal protection: IP20; Front protection: IP40
• Operating temperature: -25 °C to +75 °C
• Electrical endurance: >10,000 cycles; Mechanical endurance: >20,000 cycles
• Pollution degree: 2; Rated impulse withstand voltage (Uimp): 4 kV
• Standards: EN 60898-1, IEC 60898-1

Our verdict

For electricians and panel builders seeking a dependable 16 A MCB with Type B characteristics, the Eaton FAZ-B16/1 offers proven performance, robust construction, and easy installation. Its 6 kA breaking capacity and energy limiting class 3 make it a solid choice for protecting lighting, socket outlets, and small appliance circuits.