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MCCB 4P 20A 100kA Thermal Magnetic 125A Frame NM8N Chint

BRAND: CABAC
SKU: 271682
$1,336.70 List price: $1,782.20
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Chint NM8N 20A 4P MCCB features 100kA breaking capacity, thermal-magnetic trip unit with protected neutral and a 125A frame. Ideal for switchboard mains protection.

Alternatively Known As: Moulded Case Circuit Breaker, Thermal-Magnetic MCCB, NM8N-125H-20/4/21, 4P Circuit Breaker

Technical Specifications
  • Product Series: NM8N-125H
  • Device Type: Moulded case circuit breaker
  • Number of Poles: 4P
  • Rated Current: 20A
  • Frame Size: 125A
  • Trip Unit: Thermal-magnetic
  • Thermal Adjustment Range: 14–20A
  • Magnetic Trip Setting: 200A nominal
  • Ultimate Breaking Capacity: 100kA at 380/415VAC
  • Service Breaking Capacity: 100kA at 380/415VAC
  • Rated Operational Voltage: 380/415VAC
  • Maximum Rated Voltage: 690VAC
  • Insulation Voltage: 1000VAC
  • Impulse Withstand Voltage: 8kV
  • Rated Frequency: 50/60Hz
  • Protection Rating: IP40
  • Electrical Endurance: 8,000 operations
  • Mechanical Endurance: 15,000 operations
  • Connection: Front connection
  • Neutral Protection: Neutral adjustment equal to phase setting
  • Dimensions (H x L x W): 140mm x 78.5mm x 120mm
  • Weight: 1.66 kg
Key Features
  • 100kA high breaking capacity for demanding switchboard applications
  • Thermal-magnetic protection against overload and short-circuit faults
  • Four-pole configuration for three-phase systems with neutral switching or protection arrangement
  • 125A frame with adjustable thermal current range from 14A to 20A
  • Fixed magnetic trip setting of approximately 200A
  • Suitable for indoor switchboards and protected electrical enclosures
  • Can be installed vertically or horizontally with top or bottom line entry
  • Supports isolation when installed in accordance with the applicable connection arrangement
Professional Installation Requirements
  • Installation, selection, adjustment and testing should be performed by a licensed electrician in accordance with manufacturer instructions, AS/NZS 3000 and the applicable switchboard requirements. Confirm the required neutral protection arrangement and prospective fault current before installation.
Applications
  • Main switchboard protection
  • Commercial and industrial distribution boards
  • Three-phase low-voltage power distribution
  • Incoming or outgoing feeder protection
  • Electrical equipment and building services protection
  • High-fault-level switchboard installations
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 – applicable standard for low-voltage circuit-breakers and MCCBs; verify product marking and Australian certification before installation
  • AS/NZS 3000 – electrical installation requirements applicable to circuit protection and switchboard installation
Environmental Benefits
  • Metal and thermoplastic construction allows recovery and recycling of materials at end of service life
  • Long mechanical and electrical endurance can reduce replacement frequency and product waste
  • Thermal-magnetic operation does not require an external control power supply for primary protection functions
Warranty Information

CHINT warranty policy states 27 months from the date of manufacture for other low-voltage apparatus sold through authorised sales channels, subject to the applicable contract and Australian Consumer Law.

Available Now

Available through authorised CHINT distributors in Australia.

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