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Thermal Overload Relay 0.25-0.4A 25A Frame NR2 Chint

BRAND: CABAC
SKU: 268134
$81.20 List price: $108.30
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Chint NR2 thermal overload relay features 0.25-0.4A setting range, 25A frame, and direct mounting to NC1 contactors. Ideal for motor overload protection.

Alternatively Known As: CHINT NR2-25-0.4 Thermal Relay, Motor Overload Relay, Thermal Motor Protection Relay

Technical Specifications
  • Model: NR2-25-0.4
  • Product Code: 268134
  • Current Setting Range: 0.25-0.4A
  • Frame Size: 25A
  • Rated Operational Voltage: Up to 690V AC
  • Rated Frequency: 50/60Hz
  • Number of Poles: 3
  • Tripping Class: 10A
  • Auxiliary Contacts: 1NO + 1NC, electrically separated
  • Protection Functions: Overload and phase-loss protection
  • Reset Mode: Manual or automatic
  • Mounting Type: Direct plug-in mounting or independent mounting with MB-2 base
  • Compatible Contactors: CHINT NC1-09 to NC1-32, NC7-09 to NC7-32
  • Contact Ratings: AC-15 2.73A at 220V or 1.58A at 380V; DC-13 0.2A at 220V
  • Ambient Operating Temperature: -5°C to +40°C
  • Installation Altitude: Up to 2,000m
  • Terminal Screw: M3.5
  • Recommended Fuse: 1A aM or 1A gG
  • Dimensions (H x L x W): 93.6mm x 102mm x 45mm
  • Weight: 0.9 kg
Key Features
  • Adjustable 0.25-0.4A motor protection range
  • Provides overload and phase-failure protection for three-phase AC motors
  • Directly mounts beneath compatible CHINT NC1 contactors
  • Temperature compensation for consistent thermal tripping
  • Manual and automatic reset selection
  • Built-in test and stop buttons
  • Visual trip indication
  • Three-phase bimetal thermal design
  • Suitable for direct-on-line motor starters
Professional Installation Requirements
  • Installation, adjustment and maintenance must be performed by a licensed electrician or suitably qualified technician with the supply isolated. Install in accordance with the manufacturer's instructions and AS/NZS 3000. Set the relay to the motor's nameplate full-load current and verify coordination with the contactor and short-circuit protection.
Applications
  • Overload protection for small three-phase AC motors
  • Direct-on-line motor starters
  • HVAC and refrigeration equipment control panels
  • Pumps, fans and compressors
  • Industrial control cabinets using CHINT NC1 contactors
Standards & Compliance
  • Designed to IEC/EN 60947-4-1 for low-voltage contactors and motor starters incorporating thermal overload relays
  • Electrical installation should comply with AS/NZS 3000
Environmental Benefits
  • Helps prevent premature motor failure, reducing replacement equipment and material waste
  • Replaceable overload relay design supports repair rather than complete starter replacement
  • Metal and plastic components can be separated and recycled through appropriate electrical waste channels
  • Temperature compensation and accurate current adjustment help avoid unnecessary nuisance trips and associated energy losses
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus, including thermal overload relays, when purchased through authorised sales channels. Contract terms may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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