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Home  /  Terminals & Bars  / 

CHINT NXR Thermal Overload Relay

CHINT NXR Thermal Overload Relay

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Category: Terminals & Bars
Brand: CHINT
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Description
Shipping & delivery

CHINT NXR Thermal Overload Relay,
is designe to protect three-phase AC motors from overload, phase loss, and current imbalance.
It features a precision bimetal design, temperature compensation,
and manual or automatic reset options to ensure reliable performance under variable operating conditions.
With wide current adjustment ranges, trip indication, and easy plug-in installation with CHINT contactors,
the NXR series delivers dependable protection for industrial automation, HVAC, and motor control systems.

  • Compliance standard: IEC 60947-4-1 / GB 14048.4
  • Rated frequency: 50 / 60 Hz
  • Rated operational voltage (Ue): up to 690 V AC
  • Current setting range: 0.1 A – 630 A (varies by model)
  • Tripping class: Class 10A
  • Protection functions:
    • Overload protection
    • Phase loss and phase imbalance detection
    • Locked rotor protection
    • Structure: Three-phase bimetallic elements with adjustable current dial
    • Reset mode: Manual / automatic selectable
    • Temperature compensation: Ensures precise operation under varying ambient temperatures
    • Trip indicator: Mechanical flag for visual trip status
    • Test and stop button: For on-site operation checks and circuit stop function
  • Auxiliary contacts: 1 NO + 1 NC, electrically isolated
  • Mounting type: Plug-in mounting with CHINT contactors or independent base mounting
  • Mechanical life: ≥ 1,000,000 operations
  • Electrical life: ≥ 100,000 operations
  • Ambient temperature: −5 °C to +40 °C
  • Storage temperature: −25 °C to +70 °C
  • Altitude: ≤ 2000 m
  • Relative humidity: ≤ 95% RH (non-condensing)
  • Pollution degree: Class 3
  • Protection degree: IP20 (when enclosed)
  • Vibration resistance: ≤ 5.9 m/s²
  • Accessories: Mounting base (MB1–MB4), interconnection kits, and extension wiring modules
  • Compatible CHINT contactors: NC1, NC6, NC8, and NC2 series

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