2P/4P Type AC/A Auto Reset RCCB RCBO Differential Switch 25A-63A

BCD Curve:C
Type:RCCB
Brand Name:Newtrend or OEM brand
Place of Origin:China
Model Number:RD9L-R + YL9
Rated Frequency (Hz):50/60Hz
Protection:LSIG
Breaking Capacity:6kA
Rated Voltage:230/400V

Poles

Rated Current

Tripping Curve

Residual Current

SKU: 1600728337855 Category: Others

Description

Auto Recloser RCCB / RCBO

Name: 2P/4P Type AC/A Auto Reset RCCB RCBO Differential Switch 25A-63A
Brand: Newtrend or OEM brand
SKU: 1600728337855

Applications
Can be widely used in power grid terminal line, such as meter box, new energy circuit management, PV solar control box, smart electricity, smart home, new energy vehicle charging pile, and so on.

Function Features
– It can be matched with circuit breaker / leakage protection switch and automatically reclose when MCB / RCCB trips unexpectedly, No need for manual closing, reduce the cost of manual maintenance, and eliminate faults in time to improve efficiency.
–  built in 3 reclosing times, continuous closing failure within 15 minutes can send alarm through auxiliary contact.
–  With manual / automatic selector switch.
–  With mechanical / electronic double locking function.
–  The shaft transmission mode is more stable and reliable.
–  Can match other accessories.
–  Work status is indicated by LED.
–  1-MODULE

Additional information

Weight	2 kg
Dimensions	25 × 25 × 25 cm
Rated Current	25A, 40A, 63A
Poles	2P, 4P
Residual Current	30mA, 100mA, 300mA
Tripping Curve	B, C, D

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for 2P/4P Type AC/A Auto Reset RCCB RCBO Differential Switch 25A-63A.

📥

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.