RFB-RA Electrical Project Enclosure
RFB-RA Electrical Project Enclosure
RFB-RA Electrical Project Enclosure
RFB-RA Electrical Project Enclosure
Click to enlarge
RFB-RA Electrical Project Enclosure
RFB-RA Electrical Project Enclosure
RFB-RA Electrical Project Enclosure
RFB-RA Electrical Project Enclosure
Screw type Electrical Junction Box
Screw type Electrical Junction Box
Back to products
3.6kV 7.2kV Medium Voltage Vacuum Contactor 160A-630A AC/DC
3.6kV 7.2kV Medium Voltage Vacuum Contactor 160A-630A AC/DC

RFB-RA Electrical Project Enclosure

rated voltage:110V 220V 380V
Brand Name:Newtrend or OEM brand
Place of Origin:China
Model Number:RFB-RA
Rated Current:250A
Color:RAL7035
Material
Size
SKU: 60047776685 Category:
Description

Electrical Project Enclosure 150x150x70 200x200x80 300x250x120 Grey Thermoplastic Plastic IP65 Outdoor Waterproof Junction Box

   

RFB-RA series Waterproof Junction Box

 

Body Material: ABS

Stopper Material: PVC

Material characteristics: Impact, heat, low temperature & chemical resistance, excellent electrical performance and surface gloss

Certificate: CE, ROHS

Application: Suitable for indoor and outdoor electric, communication, fire fighting apparatus, iron and steel smelting, petrochemical industry, electron, power system, railway, building, mine, air and sea port, hotel, ship, works, waste water treatment equipment, environmental equipment and so on.

Installation:

     1. Inside: There are the installation holes in the base for circuit board or din rail.

     2. Outside: The products can be directly fixed on wall or other flat boards with screws or nails via the screw holes in the base.

Outlet hole: Cutting the hole in the PVC stopper as related cable size or installing cable gland to get better waterproof performance. 

Additional information
Weight 2 kg
Dimensions 25 × 25 × 25 cm
Material

ABS
Size

100x100x70mm 150x150x70mm 200x200x80mm 300x250x120mm
Color

Gray
Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for RFB-RA Electrical Project Enclosure.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
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?

A

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?

A

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?

A

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?

A

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?

A

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.

Related products

RFB-RA Waterproof Junction Box with knock out

RFB-RA Waterproof Junction Box with knock out

rated voltage:240V
Brand Name:Newtrend or OEM
Place of Origin:China
Model Number:RA
Rated Current:100A
RFB-RA series Plastic Junction Box
RFB-RA series Plastic Junction Box

RFB-RA series Plastic Junction Box

Type:Junction Box
External Size:85x85x50 mm
Brand Name:Newtrend or OEM
Place of Origin:China
ip level:IP65
Model Number:RA
RFB-RA Plastic Junction Box
RFB-RA Plastic Junction Box

RFB-RA Plastic Junction Box

Type:Junction Box
Brand Name:Newtrend or OEM
Place of Origin:China
ip level:IP65
Model Number:RA