What is the operating voltage range?

The rated operating voltage is AC 400V at 50Hz, with a rated working voltage of AC 415V/690V.

Are there optional communication features?

Yes, optional pluggable lightning protection modules and infrared communication functions are available.

What is the maximum breaking capacity?

The breaking capacity (Icu) ranges from 50kA to 85kA depending on the specific model and current rating.

Remote Controlled MCCB 125A 250A 400A Molded Case Circuit Breaker with RS485

Name: Remote Controlled MCCB 125A 250A 400A Molded Case Circuit Breaker with RS485
Brand: Yueqing Long Road Electric Co., Ltd.
SKU: 2208664235

Zhejiang, ChinaYueqing Long Road Electric Co., Ltd.

US$50.41

20-499 Pieces

US$49.42

500-999 Pieces

US$48.45

1,000-2,999 Pieces

US$47.50

3,000-4,999 Pieces

US$46.55

5,000+ Pieces

Sample price:US$50.41/piece.Request sample

Product profile

Customization

Available

Breaking Capacity

Low Voltage Circuit Breakers

Operation

Auto Reclosing

Model NO.

SRME1

Speed

High-Speed Circuit Breaker

Arc-extinguishing Medium

Air

Installation

Fixed

Structure

MCCB

Poles Number

Type

Circuit Breaker

Function

Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB

Certification

ISO9001-2000, CE, CB, CCC

Model

Srme1

Number of Poles

Rated Current(a)

32~800A

Rated Working Voltage

AC415V/690V

Transport Package

Exporting Package

Specification

IEC/EN 60947-2

Trademark

Longroad/OEM

Origin

China

Production Capacity

50, 000 Units/Month

Key features

Remote Control Capability: Enables remote communication, telemetry, control, and adjustment via RS485 interface.

32-bit ARM Microprocessor: Provides real-time signal processing and intelligent control for high performance.

Multi-Function Protection: Covers overload, short circuit, undervoltage, overvoltage, phase loss, and residual current.

Auto Reclosing Function: Automatically recloses after 20-60s if residual current fault is eliminated.

LCD Display Interface: Offers bilingual Chinese/English display for friendly HMI and simple operation.

Online Parameter Setting: Allows real-time modification of protection functions and parameters without power off.

High Breaking Capacity: Ensures reliable short circuit protection with Icu up to 85kA depending on model.

Optional Communication Modules: Supports pluggable lightning protection and infrared communication functions.

Company profile

Yueqing Long Road Electric Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2010-03-06 CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤2.74h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryYueqing Long Road Electric Co., Ltd. is a China-based limited trading company established in 2014 according to its business profile, while its company description states it was founded in 2010. It supplies low-voltage electrical products, including MCBs, RCCBs, SPDs, MCCBs, contactors, relays, isolators, and photovoltaic combiner boxes. The supplier reports ISO9001:2015 certification, multiple product certifications, eight production lines, MCB output of 20 million pieces, and one-month lead times in both peak and off-peak seasons. It claims exports to more than 80 countries and regions, although the detailed export-market information is limited to Africa, Southeast Asia, and the Middle East. Evidence supports broad product coverage, documented quality systems, and claimed innovation capabilities. However, after-sales resources, customization capability, financial credibility, and customer performance are insufficiently verified. The profile also contains inconsistencies regarding founding year, supplier...

CertificationsThe supplier explicitly reports an ISO9001:2015 management-system certificate. It also claims product certifications including CE, CB, IEC, SGS, Nemko, SAA, SASO, TUV, CCC, Golden Sun, and VDE, but the provided slices do not include certificate numbers, validity dates, or verification documents.

R&D capabilityThe supplier claims strong independent innovation capabilities, core technologies, multiple patents, and leading-level Internet of Things circuit breakers and photovoltaic and communications DC power-distribution products. These statements provide explicit positive evidence, although patent details and independent technical validation are not included.

Production capacityThe profile reports eight production lines, an MCB output of 20 million pieces, a 300.0 m² manufacturing plant, and one-month order fulfillment in both peak and off-peak seasons. These figures support established production capacity, although the relationship between the reported plant area, production lines, and the supplier's trading-company classification is not clarified.

Client casesThe supplier claims sales to countries and regions including the UK, Spain, Portugal, Singapore, Turkey, Russia, Korea, South Africa, and Nigeria, and separately claims coverage of more than 80 countries and regions. A detailed trade record identifies BTCPOWER CEBU INC as an associated buyer with one recorded transaction, providing some customer evidence but not enough to demonstrate a broad, verified customer portfolio.

Product Q&A

Q:What is the rated insulation voltage?

The rated insulation voltage is 1000V, suitable for three-phase four-wire neutral point direct grounding distribution networks.

Q:Does the circuit breaker support remote control?

Yes, it features RS485 communication for remote telemetry, control, and adjustment.

Q:What protection functions are included?

It includes overload, short circuit, undervoltage, overvoltage, phase loss, and residual current protection.

Q:How does the auto reclosing feature work?

If the residual current fault is eliminated within 5s after closing, it recloses automatically after 20-60s; otherwise, it locks and requires manual closing.

Q:Can protection parameters be adjusted online?

Yes, protection functions and parameters can be set and modified online via the microprocessor.