Chint NXR Thermal Overload Relay (63–80 A)

Model / Frame: NXR‑100 (suitable for mid-range current protection needs)

Adjustable Current Range: 63–80 A

Thermal overload protection to guard against excessive sustained current

Phase-loss (single-phase) protection to prevent motor damage during phase failure
Auxiliary Contacts:

• One Normally Open (NO)

• One Normally Closed (NC)

Controls & Indicators:

• Trip (action) indicator

• Stop/Test button

• Temperature compensation

• Manual & automatic reset (depending on model variant)
  

Mounting Options:

• Plug-in design compatible with NXC-series contactors

• Independent mounting with optional MB-4 base
  

Standards & Certifications:

• Complies with IEC/EN 60947‑4‑1 and IEC/EN 60947‑5‑1

• CB-certified variant with max voltage rating Ue = 690 VAC, impulse withstand 8 kV, and IP20 protection at the front view
  

Environmental & Mechanical Rating:

• Operating temperature: –35 °C to +70 °C, with typical use between –5 °C to +40 °C

• Designed for shock and vibration per IEC 60068‑2‑7 (shock) and IEC 60068‑2‑6 (vibration)