NJRP5-D Soft Starter

Name: Chint NJRP5-D 220V/380V/460V/575V 45kW 55kW 75kW 90kW 110kW 160kW 200kW 250kW three-phase AC motors CHNT Soft Starter
Brand: CHINT
SKU: NJRP5-D

Chint NJRP5-D 220V/380V/460V/575V 45kW 55kW 75kW 90kW 110kW 160kW 200kW 250kW three-phase AC motors CHNT Soft Starter

Motor Soft Starter; GB/T 14048.6, IEC 60947-4-2; for motor starting for pumps, fans and industrial machinery

Model

Rated control coil voltage options

Rated current range

Description

Chint NJRP5-D Motor Soft Starter

Product Overview

For NJRP5-D, the official catalogue lists rated current range as 15A~1000A. For NJRP5-D, the official catalogue lists main loop voltage (d4) as AC200V~AC415V. For NJRP5-D, the official catalogue lists main loop voltage (d6) as AC200V~AC690V. For NJRP5-D, the official catalogue lists rated voltage ue (d4) as AC200~415V (-10%~+10%).

Technical Parameters

Rated control coil voltage options	220V, 380V, 460V, 575V, 690V
Rated current range	15A~1000A
Model	NJRP5-D

Key Selling Points

✓ Product type: Soft starter

✓ Standard: GB/T 14048.6, IEC 60947-4-2

✓ Rated current range: 15A~1000A

✓ Main loop voltage (D4): AC200V~AC415V

Technical Highlights

Product type: Soft starter
Standard: GB/T 14048.6, IEC 60947-4-2
Rated current range: 15A~1000A
Main loop voltage (D4): AC200V~AC415V

Reference Datasheet Pages

The following pages were selected from the model catalogue and are included for technical reference:

NJRP5-D Catalog and Technical Data

Additional information

Rated control coil voltage options	220V, 380V, 460V, 575V, 690V
Rated current range	15A~1000A
Model	NJRP5-D

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for Chint NJRP5-D 220V/380V/460V/575V 45kW 55kW 75kW 90kW 110kW 160kW 200kW 250kW three-phase AC motors CHNT Soft Starter.

📥

Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.

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2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.

Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

AC-1 / AC-3 Duty

How to calculate contactor rating based on motor power and utilization categories (AC-1 vs AC-3 vs AC-4)?

AC-3 rating applies to standard squirrel-cage motor starting and stopping during normal run (starting current 5–7x In). For non-inductive or purely resistive heating loads, use the higher AC-1 rating. For severe inching, jogging, and plugging applications (AC-4 duty), derate the contactor or upsize by 1 to 2 frame sizes to prevent contact erosion.

Coil Voltage Selection

How to choose the correct control coil voltage, frequency, and electronic wide-voltage options?

Standard AC coils include 24V, 48V, 110V, 220V/230V, 380V at 50/60Hz. For DC control loops or PLC outputs, specify DC coils or electronic wide-range AC/DC coils (e.g. 100V–250V AC/DC) which feature built-in surge suppression, low holding power consumption, and immunity to voltage dips.

Overload Coordination

How to size and coordinate the matching thermal overload relay (TOR) for Type 2 protection?

Select a thermal overload relay whose current setting range straddles the motor full-load current (FLA). Set the dial precisely to 1.0x motor nameplate FLA. For IEC 60947-4-1 Type 2 coordination, pair the contactor and relay with backed-up upstream fuses or fast-acting MCB/MCCB to prevent welding under fault conditions.

Auxiliary & Interlocks

What auxiliary contact blocks and mechanical interlocks can be added for motor reversing?

Units feature built-in 1NO or 1NC auxiliary contacts, expandable with top-mounted 2-pole or 4-pole auxiliary contact blocks (F4 / AX) and pneumatic timer delay blocks. For forward/reverse motor starters or star-delta starter assemblies, add side-mounted mechanical interlock units (MI) with electrical interlocking.

Ambient & Altitude Derating

How do ambient temperature and installation altitude affect contactor performance?

Standard ratings are calibrated for -5°C to +40°C. For ambient temperatures exceeding 55°C or altitudes above 2000m (where reduced air density diminishes heat dissipation and dielectric insulation), derate operational current by 2% per 100m above 2000m and verify insulation voltage limits per IEC standards.

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