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Modular Contactor 25A 4NC Manual Override 220-240V NCH8 Chint

BRAND: CABAC
SKU: 257484
$78.60 List price: $104.80
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Chint NCH8 modular contactor features 25A rating, 4NC contacts, 220-240V AC coil with manual override, DIN rail mount. Ideal for lighting and heating loads.

Alternatively Known As: DIN Rail Modular Contactor, 4-Pole Normally Closed Contactor, Manual AC Contactor

Technical Specifications
  • Rated Current: 25A AC-7a
  • Contact Configuration: 4NC, four normally closed main contacts
  • Number of Poles: 4P
  • Coil Voltage: 220-240V AC
  • Frequency: 50/60Hz
  • Rated Operating Voltage: Up to 400V AC
  • Utilisation Category: AC-7a and AC-7b
  • Rated Insulation Voltage: 400V for 4-pole configuration
  • Protection Rating: IP20
  • Installation: Vertical mounting on TH35-7.5 DIN rail
  • Manual Operation: Off, automatic and on positions with manual override function
  • Operating Temperature: -25°C to +70°C
  • Pickup Voltage: 85% to 110% of rated coil voltage
  • Release Voltage: 20% to 75% of rated coil voltage
  • Control Circuit Wiring: 1.5-2.5 mm²
  • Power Circuit Wiring: 1.5-6 mm² rigid or 1.5-4 mm² flexible
  • Dimensions (H x L x W): 81.5mm x 68mm x 36mm
  • Weight: 0.9 kg
Key Features
  • Four normally closed power contacts for multi-circuit switching
  • 220-240V AC coil suitable for Australian supply systems
  • Manual override selector for off, automatic and on operation
  • Automatic control operation when set to the auto position
  • Compact two-module DIN rail format
  • Suitable for lighting, heating, household appliances and low-inductive loads
  • Designed for AC-7a and AC-7b applications
  • Requires suitable short-circuit protection and correct circuit protection coordination
Professional Installation Requirements
  • Installation and mains wiring should be performed by a licensed electrician in accordance with AS/NZS 3000 and the manufacturer's instructions. Install vertically on a TH35-7.5 DIN rail and provide suitable short-circuit protection; the contactor is not intended to interrupt short-circuit current.
Applications
  • Lighting control circuits
  • Electric heating loads
  • Household appliances and similar low-inductive loads
  • Remote or manual switching of AC circuits
  • DIN-rail control panels and distribution boards
Standards & Compliance
  • IEC/EN 61095 for electromechanical contactors for household and similar purposes
  • IEC/EN 60947-4-1 for low-voltage contactors and motor-starters
  • AS/NZS 3000 for electrical installation, wiring, protection and enclosure requirements
  • AS/NZS 3820 for applicable electrical equipment safety requirements where no specific Australian product standard is applied
Environmental Benefits
  • Reusable modular construction can reduce replacement waste when only the contactor requires servicing
  • Low power control operation helps limit ongoing control-circuit energy consumption
  • Long mechanical service life can reduce product replacement frequency
  • Plastic and metal components may be recyclable through appropriate electrical equipment recycling streams
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

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