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
16A/5P-MXS3-C156-6 IP67 400V

16A/5P-MXS3-C156-6 IP67 400V

🔌 Harmony Series Connector 16A/5P-MXS3-C156-6 IP67 400V The Harmony Series 16A/5P-MXS3-C156-6 IP67 400V Industrial Connector adopts the IEC 60309 red coding for 400V (3P+N+PE), ideal for three-phase four-wire systems requiring both phase and neutral. Its PA66 flame-retardant housing provides excellent durability, impact resistance, and insulation, making it suitable for demanding industrial and outdoor environments. With […]

Model: MXS3-C156-6
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16A/4P-MXS3-C146-6 IP67 400V

16A/4P-MXS3-C146-6 IP67 400V

🔌 Harmony Series Connector 16A/4P-MXS3-C146-6 IP67 400V The Harmony Series 16A/4P-MXS3-C146-6 IP67 400V Industrial Connector uses the IEC 60309 red voltage coding (400V three-phase) and is designed for 3-phase + Earth (L1 / L2 / L3 / PE) applications. Manufactured from high-strength flame-retardant PA66, the connector withstands impact, vibration, heat, moisture, and chemical environments commonly […]

Model: MXS3-C146-6
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16A/3P-MXS3-C136-6 IP67 230V

16A/3P-MXS3-C136-6 IP67 230V

Harmony Series 16A/3P-MXS3-C136-6 IP67 230V Industrial Connector is designed for single-phase 230V systems (L + N + PE) and follows the IEC 60309 blue voltage coding, preventing mismatching across power networks. The connector is made from high-strength flame-retardant PA66, offering excellent resistance against impact, heat, chemicals, and aging. Its outstanding IP67 rating ensures complete protection […]

Model: MXS3-C136-6
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16A/5P-MXS3-C154-6 IP44 400V

16A/5P-MXS3-C154-6 IP44 400V

Harmony Series 16A/5P-MXS3-C154-6 IP44 400V Industrial Connector is designed for 3-phase + Neutral + Earth (5-pole) power systems, providing a safe and stable interface for industrial machinery, distribution boards, and temporary power setups. The red housing follows IEC 60309 400V voltage coding, preventing mismatching between different electrical systems. The connector is made of high-strength flame-retardant […]

Model: MXS3-C154-6
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16A/4P-MXS3-C144-6 IP44 400V

16A/4P-MXS3-C144-6 IP44 400V

Harmony Series 16A/4P-MXS3-C144-6 IP44 400V Industrial Connector is designed for 3-phase + Neutral 400V systems, providing a safe and reliable power interface for industrial machinery and light-duty power distribution. With IEC 60309 red voltage coding (400V), it prevents mismatching between different voltage systems, ensuring operational safety. The connector housing is molded from high-strength flame-retardant PA66, […]

Model: MXS3-C144-6
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16A/3P-MXS3-C134-6 IP44 230V connector

16A/3P-MXS3-C134-6 IP44 230V connector

Harmony Series 16A/3P-MXS3-C134-6 IP44 230V Industrial Connector is designed for single-phase 230V systems (L / N / Earth), providing a reliable power interface for light to medium-duty equipment. With IEC 60309 blue voltage coding (230V), it ensures safe and correct matching, preventing misconnection in industrial environments. The connector housing is made from high-strength flame-retardant PA66, […]

Model: MXS3-C134-6
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125A/5P-MXS3-A456-6 IP67 400V

125A/5P-MXS3-A456-6 IP67 400V

The Harmony Series 125A/5P-MXS3-A456-6 IP67 400V Industrial Plug is engineered for heavy-duty three-phase five-wire systems (L1 / L2 / L3 / N + Earth), ensuring stable neutral connection and reliable grounding. With IEC 60309 red voltage coding (400V), the plug ensures correct matching and prevents misconnection in industrial environments. Featuring an IP67 protection rating, it […]

Model: MXS3-A456-6
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125A/3P-MXS3-A446-6 IP67 400V

125A/3P-MXS3-A446-6 IP67 400V

The Harmony Series 125A/3P-MXS3-A446-6 IP67 400V Industrial Plug is a heavy-duty connector designed for high-current three-phase power distribution (L1 / L2 / L3 + Earth). With red IEC 60309 voltage coding (400V), it ensures safe and error-free connection across different voltage systems. The plug features IP67 protection, making it suitable for harsh industrial environments, including […]

Model: MXS3-A446-6
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125A/3P-MXS3-A436-6 IP67 230V

125A/3P-MXS3-A436-6 IP67 230V

The Harmony Series 125A/3P-MXS3-A436-6 IP67 230V Industrial Plug is designed for high-current three-phase systems (L1 / L2 / L3 + Earth). Its blue IEC 60309 color coding ensures correct voltage matching and eliminates the risk of misconnection. With IP67 protection, this plug delivers reliable performance even in harsh industrial environments such as dust, heavy humidity, […]

Model: MXS3-A436-6
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63A/5P-MXS3-A356-6 IP67 400V

63A/5P-MXS3-A356-6 IP67 400V

The Harmony Series 63A/5P-MXS3-A356-6 IP67 400V Industrial Plug is designed for three-phase five-wire systems (L1 / L2 / L3 / N + Earth). The housing follows the red IEC 60309 color code, representing 400V, ensuring correct voltage matching and preventing accidental misconnection. With its IP67 protection rating, this plug performs reliably in harsh industrial environments […]

Model: MXS3-A356-6
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63A/4P-MXS3-A346-6 IP67 400V

63A/4P-MXS3-A346-6 IP67 400V

The Harmony Series 63A/4P-MXS3-A346-6 IP67 400V Industrial Plug is designed for three-phase four-wire electrical systems (L1 / L2 / L3 / N + Earth). Its red IEC 60309 housing indicates a 400V rating, preventing mismatched voltage connections. With an IP67 protection rating, the plug provides reliable performance in harsh environments including dust, rain, humidity, water […]

Model: MXS3-A346-6
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63A/3P-MXS3-A336-6 IP67 230V

63A/3P-MXS3-A336-6 IP67 230V

The Harmony Series 63A/3P-MXS3-A336-6 IP67 230V Industrial Plug is designed for three-phase low-voltage systems (L1, L2, L3 + PE). Its blue IEC 60309 housing clearly identifies it as a 230V device, preventing mismatched voltage connections. With an IP67 protection rating, the A336-6 is engineered for harsh and wet environments — including outdoor installations, marine equipment, […]

Model: MXS3-A336-6
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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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