CHINT RT29 Fuse with Cylindrical Cap

Name: CHINT RT29 Fuse with Cylindrical Cap
Brand: CHINT
SKU: 1769744607349841920

Brand:Chint
Brand Name:Chint
Place of Origin:China
Use:LOW VOLTAGE
Model Number:RT29
Safety Standards:IEC
Breaking Capacity:High

Rated Voltage

Size

Rated Current (A)

Description

Chint RT29-16 RO14 8×32 2A 4A 6A 10A 16A RT29-125 RO17 22×58 10A 16A 20A 25A 32A 40A 50A 63A 80A 100A 125A Chnt Fuse

Chint RT 29 type fuse with cylindrical cap applies to distribution configuration of AC 50Hz, rated voltage 500V and rated current of 125A for protection from overload and short-circuit. (This type of fuse is not recommended of using in the electric capacity cabinet, if so, RT36-00 shall be used as replacement). Fuse equipped with impinger can be used as open-phase protection for the electric motor. Fuse-link for general service with full range of breaking capacity shall be “gG” type which can be used for line protection.

Additional information

Size	10×38, 14×51, 22×58
Rated Current (A)	2A, 4A, 6A, 8A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A
Rated Voltage	AC 400V, AC 500V, AC 690V

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for CHINT RT29 Fuse with Cylindrical Cap.

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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.

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.