Legrand 419142 MCB RX³ 1P 63A Curve B 6kA DIN Rail

The Legrand 419142 is an RX³ miniature circuit breaker (MCB), 1-pole, rated 63 A on the B tripping curve, for 230 V installations. It has a short-circuit breaking capacity of 6 kA per IEC 60898-1, occupies 1 module on a DIN rail, and provides overcurrent and short-circuit protection for residential and small-commercial distribution circuits.

Technical specifications:

• Catalog reference: 419142
• Manufacturer: Legrand
• EAN: 3414970366900
• Dimensions (W × H × D): 17.7 × 88.5 × 77.8 mm
• breaking capacity: 6000 A (IEC 60898-1)
• tripping curve: B (3-5 In, 189-315 A)
• release characteristic: B
• Number of poles: 1
• Rated current (In): 63 A
• Rated voltage: 230 V
• Rated insulation voltage (Ui): 500 V
• Rated impulse withstand voltage (Uimp): 4 kV
• short circuit breaking capacity icn: 6 kA
• short circuit breaking capacity icu: 6 kA
• Voltage type: AC
• Frequency: 50-60 Hz
• current limiting class: 3
• Flush-mountable: Yes
• Pollution degree: 2
• Width (modules): 1
• Degree of protection (IP): IP20
• built in depth mm: 44
• Impact resistance (IK): IK02
• Storage temperature: -40 to 70 °C
• Operating voltage range: 210-250 V
• Colour: Grey
• RAL reference: 7035
• Halogen-free: No
• Connection type: Screwed terminal, Busbar and cable
• Mounting: DIN rail
• Standards: IEC 60898-1

Features and benefits:

• Thermal-magnetic tripping provides reliable protection against overloads and short circuits.
• Class 3 energy limitation per IEC 60898-1 minimises let-through energy during a fault.
• Accepts copper cable, prong busbar, or fork busbar for flexible distribution-board assembly.
• Compact 1-module-per-pole footprint suits dense modular enclosures.

Applications:

• Final circuit protection for residential and small-commercial distribution boards up to 63 A.
• Lighting, socket-outlet and small-appliance feeders requiring C-curve tripping behaviour.
• Series coordination with upstream RCDs in TT and TN-S supply systems.
• Modular distribution enclosures conforming to IEC 60898-1.

Also known as: Legrand 419142, 419142, RX³ LEGRAND.