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MCB 2P 50A 6kA D Curve DIN Rail NB1-63 Chint

BRAND: CABAC
SKU: 179680
$20.00 List price: $26.60
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Chint NB1-63 2P 50A MCB features 6kA breaking capacity, D-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.

Alternatively Known As: 2P 50A D Curve MCB, DIN Rail Circuit Breaker, NB1-63D2P50, CHINT 179680

Technical Specifications
  • Product Code: 179680
  • Poles: 2P
  • Rated Current: 50A
  • Rated Voltage: 400V AC
  • Rated Frequency: 50/60Hz
  • Breaking Capacity: 6kA
  • Tripping Characteristic: D curve, 10–14 x In magnetic release range
  • Insulation Voltage: 500V
  • Impulse Withstand Voltage: 4kV
  • Electrical Life: 10,000 operations
  • Mechanical Life: 20,000 operations
  • Protection Degree: IP20
  • Terminal Capacity: Up to 25mm² cable
  • Terminal Tightening Torque: 2.0N·m
  • Mounting: 35mm DIN rail to EN 60715
  • Connection: Top or bottom feed
  • Energy Limiting Class: 3
  • Dimensions (H x L x W): 82mm x 75.5mm x 36mm
  • Weight: 0.22 kg
Key Features
  • Thermal-magnetic protection against overload and short-circuit currents
  • D-curve characteristic for circuits with high inrush current, including transformers and motor loads
  • Two-pole switching and isolation
  • 6kA rated short-circuit breaking capacity
  • Compact two-module DIN rail format
  • Top or bottom cable connection
  • Contact position indication
  • Compatible with auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
  • Installation, selection and testing must be performed by a licensed electrician in accordance with AS/NZS 3000 and applicable local requirements. Confirm system fault level, conductor sizing, enclosure compatibility and required Australian approvals before use.
Applications
  • Domestic distribution boards
  • Commercial switchboards
  • Light industrial electrical distribution
  • Protection of transformer and motor circuits with high starting or inrush current
  • DIN rail final distribution and sub-circuit protection
Standards & Compliance
  • AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard reference for AC miniature circuit-breakers; verify product approval and RCM status for the intended Australian installation.
  • IEC/EN 60898-1 manufacturer-declared product standard
Environmental Benefits
  • Metal components can be recovered through established electrical equipment recycling streams
  • Long mechanical and electrical operating life can reduce replacement frequency and material waste
  • Energy-limiting operation helps reduce damage to downstream equipment during short-circuit events
  • RoHS marking is shown in the manufacturer product catalogue
Warranty Information

CHINT warranty policy specifies a 27-month warranty from the date of manufacture for other low-voltage apparatus, subject to authorised supply channels, correct installation and the applicable warranty terms.

Available Now

Available through authorised CHINT distributors in Australia.

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