RT18 Fuse Holder for 10x38, 14x51, 22x58 Fuses - Low Voltage Electrical Top Manufacturer & Supplier | Circuit Breakers & Contactors

Name: RT18 Fuse Holder for 10x38, 14x51, 22x58 Fuses
Brand: Newtrend Electric
SKU: 60048689596

Description

Fuse carrier RT18-32 RT18-32X RT18-63X RT18L-63 RT18L-125 RT14-20 1P 2P 3P 32A 63A 125A 500V 690V 1000V RT18 AC DC Fuse Holder

Reference
Photo

Product
Model

Applicable
Fuse Links

Rated
Current

Rated
Voltage

Overall dimension (mm)

RT18-20X

8.5×31.5

20A

500V
690V
1000V
AC DC

RT18-32X

10×38

32A

RT18-63X

14×51

63A

103

105

110

Reference
Photo

Product
Model

Applicable
Fuse Links

Rated
Current

Rated
Voltage

Overall dimension (mm)

RT18L-63

14×51

63A

500V
690V
1000V
AC DC

108

115

100

RT18L-125

22×58

125A

126

134

104

Reference
Photo

Product
Model

Applicable
Fuse Links

Rated
Current

Rated
Voltage

Dimension as per the following (mm)

RT18N-10

8.5×23

10A

500V

RT18N-16

10×25.8

16A

RT18N-20

8.5×31.5

20A

RT18N-25

10×31.5

25A

RT18N-32

10×38

32A

Reference
Photo

Product
Model

Applicable
Fuse Links

Rated
Current

Rated
Voltage

Dimension as per the following (mm)

RT18-32N

10.3×38

32A

690V

Reference
Photo

Product
Model

Applicable
Fuse Links

Rated
Current

Rated
Voltage

Dimension as per the following (mm)

RT14-20

10×38

20A

500V

Screw mounting type

RT14G-20

10×38

20A

500V

G32-15 rail installation type

Reference
Photo

Product
Model

Applicable
Fuse Links

Rated
Current

Rated
Voltage

Dimension as per the following (mm)

RT14-20E

8.5×31.5

20A

500V

RT14-25E

10×38

25A

500V

Reference
Photo

Product
Model

Applicable
Fuse Links

Rated
Current

Rated
Voltage

Overall dimension (mm)

RT14-63A

22×58

100A

500V

101.5

100

48.5

35.5

52.5

134

–

Reference
Photo

Product
Model

Applicable
Fuse Links

Rated
Current

Rated
Voltage

Overall dimension (mm)

RT14-32B

14×51

32A

500V

95.5

42.5

123

RT14-63B

22×58

100A

500V

101.5

100

48.5

35.5

52.5

134

Additional information

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

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for RT18 Fuse Holder for 10x38, 14x51, 22x58 Fuses.

📥

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.