Eaton PXL-B16/3 Miniature Circuit Breaker B-Type 3P 16A 400V 10kA

In a busy commercial distribution board, every circuit needs dependable protection. The Eaton PXL-B16/3 is a three-pole miniature circuit breaker engineered for exactly that environment. Electricians and panel builders rely on it to safeguard cables and equipment from overloads and short circuits, with a B-type trip curve that responds quickly to moderate inrush currents. Its 16 A rating and 10 kA breaking capacity make it suitable for a wide range of final circuits in residential, commercial, and light industrial installations.

Key specifications

• Rated current: 16 A
• Tripping characteristic: B
• Number of poles: 3
• Rated voltage (AC): 400 V
• Rated switching capacity (Icn): 10 kA
• Rated short-circuit breaking capacity (Ics): 10 kA
• Frequency: 50/60 Hz
• Mounting type: DIN rail
• Energy limiting class: 3
• Terminal type: Screw terminal
• Terminal capacity (rigid): 1 - 25 mm²
• Terminal capacity (flexible): 1 - 16 mm²
• Protection degree (IP): IP20 (terminals)
• Standards: IEC/EN 60898-1
• Ambient operating temperature: -25 to +50 °C
• Mechanical life: 20,000 operations
• Electrical life: 10,000 operations
• Overvoltage category: III

Why choose it

The PXL-B16/3 combines robust construction with precise tripping performance. Its B-type characteristic ensures fast disconnection for short circuits while avoiding nuisance tripping on normal load variations. The 10 kA breaking capacity provides a solid safety margin for most building installations, and the compact three-pole design saves valuable space on the DIN rail. With screw terminals accepting a wide range of conductor sizes, installation is straightforward and secure.

Ideal use cases

• Protection of three-phase circuits in residential and commercial distribution boards
• Motor control circuits with moderate inrush currents
• Lighting and socket outlet circuits requiring B-type protection
• Sub-distribution panels in industrial environments

Good to know

This MCB is compliant with IEC/EN 60898-1, ensuring compatibility with standard modular enclosures. Its energy limiting class 3 means it effectively limits let-through energy, protecting downstream equipment. The device is designed for operation in ambient temperatures from -25 °C to +50 °C, making it suitable for a variety of climates. Always verify local regulations and coordination with upstream protective devices.