MCCB 3P 400A 36kA Standard Electronic 630A Frame NM8N Chint
Chint NM8N 400A 3P MCCB features 36kA breaking capacity, standard electronic trip unit and a 630A frame. Ideal for switchboard mains and sub-mains protection.
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Alternatively Known As: CHINT NM8N 630 Frame MCCB, 400A Electronic MCCB, 3-Phase Moulded Case Circuit Breaker, Main Switch MCCB
- Circuit Breaker Type: Moulded case circuit breaker for power distribution
- Rated Current: 400 A
- Frame Size: 630 A
- Number of Poles: 3P
- Breaking Capacity: 36 kA at 380–440 V AC
- Trip Unit: EM standard electronic release
- Rated Operational Voltage: 380–415 V AC typical; suitable across the NM8N voltage range
- Rated Insulation Voltage: 1,000 V
- Rated Impulse Withstand Voltage: 12 kV
- Frequency: 50/60 Hz
- Service Application: Main and sub-main circuit protection
- Terminal Connection: Copper conductors with cable lugs; M10 terminals
- Dimensions (H x L x W): 255mm x 140mm x 113mm
- Weight: 2.4 kg
- 36 kA short-circuit breaking capacity for low-voltage distribution protection
- Standard electronic trip unit for adjustable overload and short-circuit protection
- 400 A rated current on a robust 630 A frame
- Three-pole configuration for three-phase switchboards
- Suitable for fixed, plug-in or withdrawable mounting arrangements subject to the selected configuration
- Designed for switchboard mains, sub-mains and commercial or industrial distribution systems
- Electronic release supports improved protection coordination compared with basic fixed-trip protection
- Installation, testing and commissioning must be carried out by a licensed electrician or suitably qualified electrical professional. Select and install the MCCB in accordance with the manufacturer’s instructions, AS/NZS 3000 and applicable switchboard requirements. Confirm the prospective fault current, cable capacity, discrimination settings and Australian compliance marking before energising.
- Switchboard mains protection
- Sub-main circuit protection
- Commercial and industrial power distribution
- Three-phase feeder protection
- Generator, transformer and plant distribution boards
- Industrial control panels and electrical distribution assemblies
- AS/NZS IEC 60947.2:2015 — applicable standard for low-voltage circuit-breakers
- AS/NZS 3000:2018 — electrical installation and wiring requirements applicable to installation in Australia and New Zealand
- Verify product-specific RCM and local supply-authority requirements before installation
- Durable moulded-case construction can provide extended service life and reduce replacement waste
- Electronic protection settings can support improved system coordination and reduce unnecessary outages or equipment damage
- Metallic and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
- Supports efficient protection of electrical distribution equipment, helping avoid premature failure and associated material waste
CHINT’s general warranty policy for other low-voltage apparatus provides 27 months from the date of manufacture against defects in materials and workmanship when purchased through authorised sales channels. Contractual or local distributor warranty terms may vary.
Available through authorised CHINT distributors in Australia.
