Chint NXR Thermal Overload Relay (23–32 A)

Model & Setting Range

• Designated as NXR‑38 (or NXR‑100) with an adjustable current setting range of 23–32 A, which corresponds to the relay’s operational ampacity and alignment with compatible contactor frames.

Voltage Compatibility

• Works with systems up to 690 V AC, compliant with both 50 Hz and 60 Hz power supplies.

Protection Functions

• Provides thermal overload safeguarding and phase loss protection to prevent motor damage from overheating or fault conditions.

Operational Features

• Offers manual reset, trip (action) indication, stop/test functions, and temperature compensation to maintain stable operation across temperature variances.

• Equipped with 1 NO (normally open) and 1 NC (normally closed) auxiliary contact for use in control circuits or interlocks.

Mounting & Installation

• Designed for plug-in integration with Chint NXC contactors. If required, an MB-3 mounting base can convert it into an independently installed unit.

Standards Compliance

• Fully compliant with IEC/EN 60947‑4‑1 and IEC/EN 60947‑5‑1, meeting industrial control and safety requirements.

General NXR Series Details

• The NXR relays cover a broad range (0.1–630 A), offering flexible motor protection across low-power to high-capacity applications.