High‑precision MCB testing

MCB Test Bench
±0.5% Accuracy | 1,200 tests/hour

You can use our testing machines for fully automatic testing of MCB, RCCB, or RCBO devices. The electrical performance, trip curve, leakage current, and mechanical endurance will all be verified to IEC/GB standards. We have all our machines configurable to suit your production requirements.

±0.5%
Test accuracy
1,200+
Tests/hour
100%
Parameter coverage
99.8%
Test repeatability
Key advantages

Why choose our MCB test bench

Designed specifically for circuit breaker manufacturers, our automatic test benches provide fast and accurate electrical testing with complete traceability of all data points.

Comprehensive tests
Tripping time, contact resistance, insulation resistance, dielectric strength, leakage current (30mA/100mA/300mA), and mechanical endurance.
IEC/GB compliant
Test sequences according to IEC 60898, IEC 61009, GB 10963 – fully programmable via PLC and industrial computer.
MES ready
Barcode/QR scanning, data logging, and real‑time upload to MES/ERP for full traceability and quality control.
Quick changeover
Recipe‑based setup for different MCB types (1P/2P/3P/4P, rated current 1‑125A, B/C/D curves). Changeover under 3 minutes.
Featured machines

Our MCB test bench series

Test benches (both semi-automatic & fully automatic) shall be available for performing inline or offline testing of your components or products with customizable options to fit your company’s own production rate.

Custom configurations available – ask for a tailored test solution.
Customer success

Successful implementation of circuit breaker testing

Top MCB manufacturer, China
An integrated four machine test bench assembly was created for the original assembly line and resulted in production from 800 to 1,150 units/hour, while also producing an 80% decrease in false failures compared to the previous system implementation.
Brand Leader in India
Developed customer specific test benches for RCCB incorporating automated leakage current tests and bar code traceability during inline inspection to achieve 100% inline inspection, resulting in zero returns from customers after six months of use.
Exporter in Turkey
A multi station testing set up for MCB & RCBOs reduced manual testing costs by 70% and paid for itself in eight months of operation due to the implementation of this test system.
Retrofit project in Europe
Implementation of a PLC based retrofit test system to update the existing test system, including MES integration allowing for real-time SPC and defect tracking.
Technical comparison

Manual vs. Semi‑Automatic vs. Fully Automatic MCB Test Benches

Select the right automation level based on your production volume, budget, and quality requirements.

Feature Manual test bench Semi‑automatic Fully automatic (inline)
Test speed (units/hour)50-100300-600800-1,200
Operator involvementLoad, unload, record manuallyManual load, automatic testFully automated (conveyor feed)
Test accuracyOperator dependent (±2-3%)±1%±0.5% (high precision sensors)
Data traceability (MES)Manual log, not recommendedOptional barcode + exportStandard: barcode, SQL, API to MES
Test coverageBasic (trip time, resistance)Full (trip, resistance, dielectric, leakage)Full + mechanical endurance + SPC
Investment range$5k – $12k$18k – $35k$45k – $120k+
Best forSmall batch, R&D lab, calibrationMid‑volume production, mixed productsHigh‑volume inline, zero‑defect requirement

All specifications representative – final configuration depends on custom requirements. Request a tailored comparison for your products →

Selection guide

How to Choose the Right MCB Test Bench – 5 Key Factors

The following is a step-by-step approach to establish an ideal test for your circuit breaker manufacturing processes.

Step 1: Define daily output volume
Less than 1,000 units/day → manual or semi‑auto. 1,000-5,000 units/day → semi‑auto with fast load. Above 5,000 units/day → fully automatic inline integration.
Step 2: Identify required test standards
IEC 60898 (MCB), IEC 61009 (RCBO), UL 489, or GB 10963. Our benches support all major standards. For RCBO, ensure leakage current test (30mA/100mA/300mA) is included.
Step 3: Decide automation & MES level
Need full traceability? Choose barcode scanning and SQL/API export. For Industry 4.0, select MES‑ready bench with real‑time SPC and defect tracking.
Step 4: Evaluate product family flexibility
Single type (e.g., 1P MCB) → fixed tooling. Multiple poles/curves → quick‑change fixtures and recipe management. We offer changeover under 3 minutes.
Step 5: Plan for future capacity
Choose modular benches that can be upgraded from semi‑auto to fully automatic. Add test stations later. Our systems are scalable.

If you are still uncertain, provide us with your product samples and desired capacity, and we will provide you with the best value configuration based upon ROI analysis. Get free consultation request here →

PERFIL DE COMPANHIA

Integração de sistemas de automação no núcleo

Benlong Automation Technology Co., Ltd. is an advanced high-tech corporation in the country that is centred around the creation of digitally built intelligent manufacturing machinery. Established in Wenzhou, China in 2008, Benlong Automation offers tailored made automatic test stations, assembly machine, and comprehensive production line capabilities to produce equipment for low voltage electrical manufacturers globally.

MCB Test Benches are designed to provide highly accurate electrical testing, using both PLC controlled automation and high-speed data acquisition, to connect with Manufacturing Execution Systems (MES). We support Circuit Breaker Manufacturers who want reliable, repeatable, and traceable quality control inspections.

Test bench assembly workshop
Empresa Nacional de Alta TecnologiaTest & Measurement
2008Fundada
50,88 milhõesCapital social em RMB
160+Patentes Nacionais
26Direitos autorais de software
300+Registros de qualificação
1200+Clientes atendidos
Test bench engineering
COMPLETE TESTING SOLUTIONS

From MCB Test Bench to Full Line Integration

We design and build automated test equipment for manufacturing MCBs, RCDs, RCBOs and contactors. We also provide complete solutions for integrating testing stations with production lines, laser marking and packaging, ensuring full quality assurance of the product.

Automatic MCB test bench – electrical performance, trip curve, leakage current
Custom test solutions – according to your product specs and test standards – request a custom MCB test bench →
MES & data traceability – barcode scanning, test data storage, SPC reporting
Inline or offline configuration – manual load/unload or fully automated conveyor integration
Request a custom test bench quote
AMBIENTE DE FÁBRICA

Built for reliable test equipment

Delivery is made with proof of proper assembly of each MCB Test Bench in our ISO Standard Workshop. We guarantee electrical safety, accuracy of measurements and long term stability for all MCB Test Benches delivered by us.

Test bench assembly
Calibration room
Test bench debugging
Control panel wiring
Line integration test
GLOBAL INSTALLATIONS

Trusted by circuit breaker manufacturers worldwide

From India to Europe, our test benches are used by leading low‑voltage electrical brands.

Algeria test line

Algeria plant

Azerbaijan customer

Azerbaijan facility

Ethiopia workshop

Ethiopia plant

India customer

India facility

Iran customer

Iran factory

Russia customer

Russia site

Saudi Arabia

Saudi Arabia line

CERTIFICADOS E PRÊMIOS

Tecnologia, Patentes e Reconhecimento de Qualidade

A Benlong obteve a certificação nacional de empresa de alta tecnologia, diversas patentes, direitos autorais de software e prêmios do setor, o que reflete o investimento contínuo em desenvolvimento tecnológico e inovação em manufatura inteligente.

ISO9001 Certificate

Certificado ISO9001

ISO14001 Certificate

Certificado ISO 14001

ISO14001 Certificate

Certificado ISO 14001

ISO9001 Certificate

Certificado ISO9001

ISO 45001 Certificate

Certificado ISO 45001

TUV Certificate

Certificado TUV

Questions?

MCB Test Bench FAQ’s

What is MCB Test Bench?

MCB Test Bench is automated electrical testing equipment to check out performance of miniature circuit breakers. MCB Test Bench tests the MCB for tripping time, contact resistance, insulation resistance, dielectric strength, leakage current (only for RCBO) and mechanical endurance according to the requirements of IEC 60898/61009 standard.

How to bench test circuit breaker?

Bench test Circuit Breakers; 1. mount MCB on test fixture, 2. apply rated current and overload (5 times of in) to record trip time, 3. measure contact resistance using a micro ohm meter, 4. perform insulation and dielectric tests. All steps of an automatic MCB Test Bench are performed automatically along with data recording.

What tests can be performed on an MCB?

The MCB Test Bench is capable of: thermal magnetic trip time testing (B/C/D curves), short circuit release testing, contact resistance testing (micro ohm), insulation resistance testing (500V/1000V), dielectric withstand testing (2000V), leakage current testing for RCBOs, and mechanical endurance testing (thousands of ON/OFF operations).

Can you customize MCB Test Bench to my specific product?

Yes. As a direct manufacturer of custom test benches for MCBs, RCCBs, RCBOs and contactors, we customize the design of the benches to your product dimensions, testing standards (IEC, UL, GB), throughput requirements, and MES integration needs. Please send us your technical specifications and we’ll provide you with a customized solution.

What is the typical throughput of a standard MCB automatic test bench?

Our standard inline test bench has a basic throughput of 1200 calculated tests per hour based on the electrical parameters being tested, i.e. trip time plus contact resistance. However, when conducting complete tests with all electrical parameters including dielectric and leakage, the throughput is generally 800 to 1000 units per hour at a rate dependent on the amount of time required to conduct the tests. Custom speeds are available upon request.

Are your test benches able to be integrated with MES or ERP systems?

Yes! Each of our test benches come with the capability to scan your products using barcodes or QR codes, save your test results, and either submit the data directly via REST API or export as an SQL file. Therefore, we can provide you with complete MES integration solutions involving real-time monitoring of quality, statistical process control (SPC) charts, and complete traceability.
Comece seu projeto

Need a Custom MCB Test Bench?

Tell us your product type (MCB/RCCB/RCBO), target throughput, and required test standards. Our engineering team will design a tailored test solution with full MES integration.

Demonstração do formulário de contato
A Benlong Automation Technology Co., Ltd. é especializada em integração de sistemas de automação e equipamentos de manufatura digital inteligente para a produção de componentes elétricos de baixa tensão.
CONTATO RÁPIDO
Se tiver alguma dúvida ou precisar de ajuda, não hesite em entrar em contato com nossa equipe.
No.88, Xiangxi Road, cidade de Beibaixiang, cidade de Yueqing, Wenzhou, Zhejiang, China
+86 150 5837 0007
xsb@benlongkj.cn
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