CHINT NJBK6 Control Transformer

Name: CHINT NJBK6 Control Transformer
Brand: CHINT
SKU: NJBK6

Description

Product Overview

Main Features

Designed for electrical control power supply
Stable transformer output for control circuits
Suitable for machinery and industrial equipment
Reliable insulation and industrial construction
Available for different voltage conversion needs

Technical Specifications

Parameter	Value
Product Type	Control Transformer
Application	Control circuit power supply
Function	Voltage conversion for control systems
Use Case	Machinery and industrial equipment
Installation	Panel or cabinet installation
Duty	Continuous industrial control use

Technical and Application Notes

The CHINT NJBK6 Control Transformer is designed to provide stable control power for electrical control circuits, machinery and industrial equipment, helping ensure reliable operation and voltage adaptation in control systems. The design is suitable for reliable industrial control applications requiring stable switching performance.

Typical Applications

Control cabinets
Machine tools
Industrial equipment control power
Automation systems

Ordering Support

Please confirm model variant, actuator structure, contact arrangement and quantity before ordering.

Product Catalog

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for CHINT NJBK6 Control Transformer.

📥

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

📐

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.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.