Industrial Catalog

Industrial Connectors

Professional industrial power connection solutions. Browse our comprehensive range of IEC standard plugs, sockets, and accessories designed for demanding industrial environments.

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158 products found
63A/5P-MXS3-A354-6 IP44 400V

63A/5P-MXS3-A354-6 IP44 400V

The Harmony Series 63A/5P-MXS3-A354-6 IP44 400V Industrial Plug is designed for three-phase five-wire systems, including L1, L2, L3, N, and PE. Its red housing follows IEC 60309 color coding for 400V, preventing mismatched voltage connections. With an IP44 splash-proof rating, the A354-6 is ideal for workshops, industrial machinery, distribution cabinets, and temporary power setups. The […]

Model: MXS3-A354-6
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63A/4P-MXS3-A344-6 IP44 400V

63A/4P-MXS3-A344-6 IP44 400V

The Harmony Series 63A/4P-MXS3-A344-6 IP44 400V Industrial Plug is designed for medium to heavy-duty three-phase four-wire systems (L1, L2, L3 + N). Its red housing complies with IEC 60309 coding for 400V, ensuring correct voltage matching and preventing connection errors. With an IP44 splash-proof and dust-resistant rating, the A344-6 is ideal for workshops, industrial power […]

Model: MXS3-A344-6
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63A/3P-MXS3-A334-6 IP44 230V

63A/3P-MXS3-A334-6 IP44 230V

The Harmony Series 63A/3P-MXS3-A334-6 IP44 230V Industrial Plug is designed for heavy-duty three-phase equipment requiring stable and reliable power distribution. Its blue housing complies with IEC 60309 voltage coding, representing 230V to prevent mismatched connections. With an IP44 protection rating, the A334-6 is splash-proof and dust-resistant, suitable for indoor installations and general industrial environments. Constructed […]

Model: MXS3-A334-6
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32A/5P-MXS3-A256-6 IP67 400V

32A/5P-MXS3-A256-6 IP67 400V

The Harmony Series 32A/5P-MXS3-A256-6 IP67 400V Industrial Plug is designed for three-phase five-wire systems (L1, L2, L3, N, PE), suitable for equipment requiring a neutral conductor in 400V environments. Its red color coding follows IEC 60309 standards to ensure safe and correct voltage matching. With an IP67 protection rating, the A256-6 provides superior resistance to […]

Model: MXS3-A256-6
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32A/4P-MXS3-A246-6 IP67 400V

32A/4P-MXS3-A246-6 IP67 400V

The Harmony Series 32A/4P-MXS3-A246-6 IP67 400V Industrial Plug is engineered in full compliance with IEC 60309 standards and is intended for 400V three-phase four-wire systems (L1, L2, L3, PE). Its red color coding ensures proper voltage matching and prevents mismatched connections across different voltage classes. As an IP67-rated model in the Harmony lineup, the A246-6 […]

Model: MXS3-A246-6
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32A/3P-MXS3-A236-6 IP67 230V

32A/3P-MXS3-A236-6 IP67 230V

The Harmony Series 32A/3P-MXS3-A236-6 IP67 230V Industrial Plug is designed in full compliance with IEC 60309 standards and is suitable for 230V single-phase systems (L1, N, PE). Its blue voltage coding ensures correct matching with the 200–250V range, preventing cross-voltage connection errors. As part of the Harmony high-protection line, the A236-6 provides IP67 waterproof and […]

Model: MXS3-A236-6
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32A/5P-MXS3-A254-6 IP44 400V

32A/5P-MXS3-A254-6 IP44 400V

The Harmony Series 32A/5P-MXS3-A254-6 IP44 400V Industrial Plug is engineered according to IEC 60309 standards and is designed for 400V three-phase five-wire systems (L1, L2, L3, N, PE). Its red voltage coding clearly indicates compatibility with 400V industrial equipment, preventing mismating with other voltage levels. The A254-6 model features a reinforced housing and a secure […]

Model: MXS3-A254-6
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32A/4P-MXS3-A244-6 IP44 400V

32A/4P-MXS3-A244-6 IP44 400V

The Harmony Series 32A/4P-MXS3-A244-6 IP44 400V Industrial Plug is manufactured according to IEC 60309 standards and is suitable for 400V three-phase four-wire systems (L1, L2, L3, PE). The red voltage coding ensures clear identification of 400V industrial applications, preventing mismating with other voltage systems. The A244-6 model features a robust structure with reinforced splash-proof housing […]

Model: MXS3-A244-6
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32A/3P-MXS3-A234-6 IP44 230V

32A/3P-MXS3-A234-6 IP44 230V

The Harmony Series 32A/3P-MXS3-A234-6 IP44 230V Industrial Plug is designed according to IEC 60309 standards and is suitable for 230V single-phase or three-wire systems (L, N, PE). The blue voltage coding clearly identifies it as a 230V low-voltage connector, preventing mismatch with other voltage systems. The A234-6 model features a robust structure, splash-proof outer shell, […]

Model: MXS3-A234-6
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16A/5P-MXS3-A156-6 IP67 400V

16A/5P-MXS3-A156-6 IP67 400V

The Harmony Series 16A/5P-MXS3-A156-6 IP67 400V Industrial Plug is designed according to IEC 60309 standards and is suitable for 400V three-phase five-wire systems (L1, L2, L3, N, PE). The red voltage coding clearly identifies it as a 400V industrial connector, preventing accidental mismating. The A156-6 model features the signature Harmony Series dual-sealing system and reinforced […]

Model: MXS3-A156-6
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16A/4P-MXS3-A146-6 IP67 400V

16A/4P-MXS3-A146-6 IP67 400V

The Harmony Series 16A/4P-MXS3-A146-6 IP67 400V Industrial Plug is designed according to IEC 60309 standards and is suitable for 400V three-phase applications (L1, L2, L3, PE). The red color coding clearly identifies the 400V voltage class, effectively preventing mismatched connections. The A146-6 model adopts the Harmony Series’ signature enhanced sealing structure and quick-locking ring, ensuring […]

Model: MXS3-A146-6
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16A/3P-MXS3-A136-6 IP67 230V

16A/3P-MXS3-A136-6 IP67 230V

The Harmony Series 16A/3P-MXS3-A136-6 IP67 230V Industrial Plug complies with IEC 60309 standards and is designed for 230V single-phase applications (L, N, PE). Its blue color coding clearly identifies the voltage class and prevents mismatched connections across different power systems. The robust flame-retardant PA housing resists impact and aging, while the nickel-plated copper pins provide […]

Model: MXS3-A136-6
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How Industrial Connectors Work

Industrial connectors function by mechanically bridging electrical circuits between cables and machinery. They utilize a male (pin) and female (socket) mating system to transmit power, data, and signals reliably in harsh environments.

Industrial Connector Internal Structure

The core mechanism relies on creating a continuous, low-resistance path for electrons. Precision-engineered contacts slide into insulators, ensuring that the connection remains stable even under heavy vibration or thermal expansion.

Precision Mating Contacts

Copper alloy pins and sleeves slide together to create a low-resistance electrical path, ensuring stable transmission even under vibration.

Polarized Insulating Inserts

The inner core not only isolates currents but also features keyed profiles to ensure the plug and socket only mate in the correct orientation.

Robust PA66 Housing & Lid

High-grade thermoplastic shells resist impact, while the spring-loaded lid protects the socket and latches the plug securely when mated.

Waterproof Sealing Structure

The tail cable gland tightens around the wire, while internal gaskets create an IP-rated seal (e.g., IP44/IP67) to block water and dust.

Key Advantages of Industrial Connectors

Industrial connectors provide safe and stable power connections in harsh environments including high temperatures, humidity, vibration, and dust.

They support fast installation, modular expansion, and standardized interfaces for industrial equipment, ensuring reliable operation in the most demanding conditions.

Superior Ingress Protection

IP44 to IP67 rated sealing structure effectively blocks dust and moisture, ensuring reliability in wet or dirty environments.

Heat & Impact Resistance

High-grade PA66 engineering plastic resists impact, corrosion, and extreme temperatures (-25°C to +80°C).

Safe Locking Mechanism

Built-in locking system prevents accidental disconnection caused by heavy vibration or cable pulling.

Global Standards

Standardized color coding and dimensions (IEC 60309) ensure compatibility worldwide.

Industrial Testing Laboratory

Where Industrial Connectors Are Used

Industrial connectors are widely used across diverse industries requiring reliable power distribution and equipment connectivity.

Manufacturing & Automation

Power connections for heavy assembly lines, robotics, and CNC machinery.

Construction & Live Events

Temporary power distribution for outdoor sites, stage lighting, and mobile generators.

Food & Beverage Processing

Waterproof connections suitable for high-pressure washdowns and hygiene-critical areas.

Port & Shore Power

Corrosion-resistant connections for ship-to-shore power supply and container terminals.

Mobile Machinery

Vibration-proof power for agricultural, mining, and sanitation vehicles.

Refrigerated Containers

Standardized plugs for maintaining temperature control in global cold chain logistics.

Industrial Applications Overview

Match Scenarios to Connectors: Big Current vs. Standard Plug

Different industrial scenarios require different connectors — here’s how to pick:

Big Current Quick Connector
Heavy Duty

Big Current Quick Connector

Current
Up to 1250A
Connection
10s Quick Cam Lock
Cable
95-300mm²
Scenario
Generator Emergency Supply / Outdoor Engineering
Standard Industrial Plug
Standard IEC

Standard Industrial Plug

Current
16A - 63A
Connection
1-2min Screw Lock
Cable
1.5 - 25mm²
Scenario
Fixed Equipment (Machine Tools)

Want to know the design details behind these connectors?

Check the section below

Design Considerations for Industrial Connectors

The design of industrial connectors must consider electrical conductivity, heat dissipation, locking safety, mechanical strength, environmental sealing, and ergonomic operation.

1

Low-Resistance Contact Design

Optimized pin geometry and copper alloy selection minimize temperature rise and ensure high conductivity during high-current transmission.

2

Housing Material

Flame-Retardant Material SelectionUtilization of PA66 (UL94 V-0) engineering plastic ensures the housing is self-extinguishing and resistant to heat deformation.

3

Sealing Strategy

Compression Sealing Structure Gasket hardness and groove dimensions are precisely calculated to maintain IP67 ratings even after repeated mating cycles.

4

Cable Retention

The tail gland design firmly grips the cable, transferring mechanical stress away from the internal contact termination points.

5

Ergonomic Grip & Operation

Ribbed housing surface and calculated insertion force reduce operator fatigue during installation and maintenance.

Industrial Connector Exploded View

Differences Between Connector Categories

Although all industrial connectors follow the same safety principles, each category is optimized for different environments, power loads, and equipment requirements.

Industrial Plugs

General power input connectors for industrial machines and equipment.

Industrial Sockets

Fixed power output interfaces for walls, panels, and cabinets.

Mechanical Interlocks

Interlocked sockets preventing plug insertion/removal under load for enhanced safety.

Additional Device Plugs

Specialized plugs for instruments, control signals, and auxiliary systems.

Additional Sockets

Expansion sockets installed on cabinets or panels for additional power points.

American Standard Single-Core

High-current connectors used in welding equipment and heavy-duty applications.

Low Voltage Small Plugs

Compact connectors for portable tools and low-power industrial devices.

Multifunctional Industrial Plugs

Multi-purpose plugs combining power, signal, or protective features.

Refrigerated Container Sockets

Salt-spray-resistant and corrosion-proof sockets for reefer containers and marine equipment.
Industrial Connector Product Comparison

Why Choose CHBEB Industrial Connectors

CHBEB provides IEC-standard industrial connectors with full in-house manufacturing, testing, and OEM/ODM capabilities. Our production bases in Yueqing and Nanjing ensure fast delivery and consistent quality for global customers.

Advanced In-House Mold Development

Complete tooling capabilities for custom connector designs and rapid prototyping

Automated Production Lines

State-of-the-art manufacturing ensuring consistent quality and high-volume capacity

100% Quality Inspection

Comprehensive testing protocols including electrical, mechanical, and environmental validation

Full Export Compliance

Complete certifications and documentation for global market requirements

Strong OEM/ODM Customization

End-to-end engineering support from concept to mass production

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