SCHNAP Logo

Making Trade Life Easy!
Trade Discount 25%

MCCB 3P 250A 50kA Standard Electronic 250A Frame NM8N Chint

BRAND: CABAC
SKU: 271385
$1,428.60 List price: $1,904.80
+ −
30 Days Return Electricians Unlock Trade Access
Chint NM8N 250A 3P MCCB features 50kA breaking capacity, standard electronic trip unit and a 250A frame. Ideal for switchboard mains and sub-mains protection.

Alternatively Known As: CHINT NM8N 250A moulded case circuit breaker, 3-pole electronic MCCB, 250A electronic circuit breaker

Technical Specifications
  • Product Type: Moulded case circuit breaker
  • Frame Size: 250A
  • Rated Current: 250A at 40°C
  • Number of Poles: 3P
  • Trip Unit: Standard electronic EM release
  • Breaking Capacity: 50kA at 380/400/415/440V AC
  • Rated Operational Voltage: 380/400/415V, 440V, 500V and 660/690V AC
  • Rated Insulation Voltage: 1000V
  • Rated Impulse Withstand Voltage: 8kV
  • Protection Functions: Long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection
  • Long-Time Current Setting: 0.4–1.0 x In
  • Short-Time Current Setting: 1.5–10 x In, with OFF position
  • Instantaneous Current Setting: 2–12 x In, with OFF position
  • Mechanical Durability: 15,000 operating cycles
  • Electrical Durability: 1,500 operating cycles
  • Mounting: Fixed installation with front or rear connection
  • Dimensions (H x L x W): 157mm x 88.7mm x 105mm
  • Weight: 2 kg
Key Features
  • 50kA short-circuit breaking capacity for high fault-level distribution systems
  • Adjustable electronic trip unit with four-stage protection
  • Real-time current display and adjustable protection parameters
  • Three-pole configuration for three-phase switchboard protection
  • Suitable for mains and sub-mains protection
  • Compact fixed-mount MCCB construction
  • Compatible with optional CHINT NM8N accessories
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with manufacturer instructions, AS/NZS 3000 and applicable switchboard requirements. Confirm fault levels, discrimination, cable ratings and local electrical equipment registration before energisation.
Applications
  • Switchboard mains protection
  • Sub-main and feeder protection
  • Commercial and industrial power distribution
  • Building services distribution boards
  • Motor and equipment feeder protection where correctly coordinated
  • Low-voltage three-phase electrical installations
Standards & Compliance
  • AS/NZS IEC 60947.2:2015 is the applicable Australian/New Zealand product standard for low-voltage circuit-breakers; verify the supplied unit's local certification and RCM requirements before installation.
Environmental Benefits
  • RoHS declaration available for the NM8N series, supporting reduced use of restricted hazardous substances
  • Long mechanical and electrical operating life can reduce replacement frequency and product waste
  • Adjustable electronic protection can improve system selectivity and reduce unnecessary equipment outages
  • Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
Warranty Information

CHINT's general warranty policy for other low-voltage apparatus provides 27 months from the date of manufacture when sold through authorised channels; contract and local distributor terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

Related Products