GX series circular connectors provide military-grade construction with metal housings, secure screw coupling, and multi-pin configurations (2-20 pins) at competitive pricing. OX Connections maintains stock of GX12, GX16, GX20, GX25, GX30, GX35, and GX40 series across male/female, solder/panel mount, and hanging configurations—providing robust circular connectors for industrial OEMs without premium brand pricing.
GX Series Circular Connectors: Military Grade Construction
The “GX” designation refers to circular connector form factor with metal housing and screw coupling. The number following “GX” indicates the housing diameter in millimeters—GX12 has 12mm diameter housing, GX16 is 16mm, GX20 is 20mm, and so forth. Larger housing diameters accommodate more pins and higher current contacts.
Military Grade Features:
Metal Housing Construction: Unlike plastic connectors that crack under mechanical stress or degrade in harsh environments, metal housings (typically zinc alloy or aluminum) provide mechanical strength, electromagnetic shielding, and environmental protection. The metal construction withstands vibration, impact, and temperature cycling that plastic connectors cannot survive.
Screw Coupling Lock: Threaded coupling provides secure mechanical retention preventing accidental disconnection from vibration or cable movement. The screw lock also compresses O-ring seals (where present) creating environmental protection against dust and moisture ingress.
Multi-Pin Configuration: Available in 2-20 pin configurations depending on series size. Multiple pins in single connector reduce cable bulk compared to multiple separate connectors and organize signal/power distribution in single connection point.
Contact Options: Solder cup contacts for wire termination in cable assemblies or panel mount configurations with PCB pins, screw terminals, or wire leads. Male and female versions available for cable-to-cable or cable-to-panel connections.
RoHS Certification: All GX series connectors in OX stock comply with RoHS directives, supporting export requirements and customer environmental compliance specifications.
GX Series Range Available Ex-Stock
GX12 Series (12mm Housing):
Smallest GX series suitable for compact equipment. Pin configurations: 2-7 pins typical. Housing diameter 12mm keeps overall assembly compact while providing metal housing benefits. Applications: Compact sensors, portable equipment, LED lighting connections, audio equipment, small industrial devices.
GX16 Series (16mm Housing):
Popular mid-size circular connector balancing compactness with pin count and current capacity. Pin configurations: 2-10 pins typical. Widely used across industrial applications for sensor connections, actuator power/control, and general-purpose equipment wiring. Most versatile size for general industrial use.
GX20 Series (20mm Housing):
Larger housing accommodates higher pin counts and larger contacts. Pin configurations: 2-12 pins typical. Used when equipment requires more connection points or higher current capacity than GX16 provides. Applications: Multi-function sensors, motor connections, multi-channel control interfaces.
GX25 Series (25mm Housing):
Industrial-grade connector for applications requiring substantial pin count or higher current contacts. Pin configurations: 2-14 pins typical. The larger housing provides space for robust contacts handling several amperes per pin. Applications: Motor power connections, multi-sensor assemblies, industrial machinery interfaces.
GX30 Series (30mm Housing):
Heavy-duty circular connector for industrial power distribution and multi-channel signal connections. Pin configurations: 2-16 pins typical. Used in industrial equipment requiring organized multi-conductor connections in harsh environments.
GX35 Series (35mm Housing):
Large circular connector for applications requiring high pin counts or very high current capacity. Pin configurations: 2-18 pins typical. Industrial machinery, power distribution equipment, multi-function control panels.
GX40 Series (40mm Housing):
Largest standard GX series connector. Pin configurations: 2-20 pins. Used when equipment requires maximum pin count in single connector or when individual pins must carry very high currents. Applications: Heavy industrial machinery, power distribution, multi-motor control systems.
Metal Round Connector (MRS) Series:
Alternative designation for metal round connectors following similar construction principles. Consult with OX technical team for MRS series specifications and availability.
Available Configurations
Male and Female Versions:
Male Connectors (Plugs): Feature protruding pins. Typically used on cable assemblies connecting to panel-mounted female connectors, or in cable-to-cable assemblies where one side requires male configuration.
Female Connectors (Sockets): Feature recessed contacts accepting male pins. Typically panel-mounted on equipment providing connection point for cable assemblies, or used in cable-to-cable assemblies as mating half.
Mounting Types:
Solder Type (Cable Mount): Contacts terminate with solder cups for wire attachment. Used in cable assembly fabrication where wires solder to contacts creating permanent cable assemblies. Solder connections provide reliable electrical performance and mechanical wire retention.
Panel Mount Type: Install in equipment panels or enclosure walls. Panel mount connectors typically include threaded mounting collar or flange for secure panel attachment. Contacts may be solder type (wires solder to rear of connector after panel mounting), screw terminal type (wires clamp to terminals), or PCB pin type (connector mounts through panel with pins extending for PCB soldering).
Hanging Type (In-Line Cable): Both connector halves designed for cable mounting creating cable-to-cable assemblies. Neither connector mounts to panel—the assembly creates junction point between two cables or cable extensions. Used in applications requiring mid-cable connection points or cable length extension.
All configurations available in OX stock across the GX Series Circular Connectors range. Specific pin counts and configurations vary by series size—contact OX for detailed availability.
Applications Across Multiple Industries
Industrial Automation and Machinery:
Factory equipment, conveyor systems, robotic installations, and automated production machinery use GX series connectors for sensor connections, actuator power/control, motor connections, and control signal distribution. The metal housing and screw locking withstand continuous vibration, while multi-pin configurations organize wiring in industrial environments.
LED Lighting Systems:
Commercial and industrial LED lighting installations use circular connectors for power distribution and control signal connections. Outdoor LED installations benefit from metal housing protection and screw locking preventing weather-related failures. GX16 and GX20 commonly used for LED driver connections and multi-zone lighting control.
Audio and Video Equipment:
Professional audio systems, stage lighting, video production equipment use circular connectors for microphone connections, speaker cables, camera signals, and power distribution. Screw locking prevents accidental disconnection during setup/teardown. Metal housing provides EMI shielding important for audio/video signal integrity.
Transportation Equipment:
Railway signaling, marine electronics, vehicle-mounted equipment use circular connectors surviving vibration and environmental exposure. Screw locking maintains connections despite constant movement and vibration. Metal housing resists corrosion in marine environments and provides durability in mobile applications.
Security and Surveillance Systems:
CCTV cameras, access control systems, alarm sensors use circular connectors for power and signal connections. Outdoor installations benefit from screw locking and metal housing protecting connections from weather and tampering. Multi-pin configurations organize power, video, and control signals in single connector.
Renewable Energy Systems:
Solar panel installations, wind turbine electronics, battery management systems use circular connectors for power distribution and monitoring signal connections. Environmental exposure requires robust connectors surviving temperature cycles, moisture, and UV exposure. GX series metal construction provides durability for long-term outdoor operation.
Medical Equipment:
Non-critical medical devices and laboratory equipment use circular connectors for sensor connections and power distribution. While critical patient-connected applications require specific medical connector standards, general medical equipment benefits from GX series robust construction and reliable performance.
Test and Measurement Equipment:
Industrial test equipment, field instrumentation, calibration devices use circular connectors for sensor interfaces and power connections. Equipment moved between test locations benefits from screw locking preventing disconnection during transport. Metal housing protects connections in industrial test environments.
Competitive Pricing for OEM Production
Premium circular connector brands—Lumberg, Binder, Fischer—offer excellent products with extensive certifications and global support. They also command premium pricing reflecting brand positioning and global distribution overhead. For many industrial applications, GX series connectors provide functional performance meeting requirements at competitive pricing.
OX GX Series Pricing Advantage:
GX series connectors provide military-grade metal construction, screw locking, multi-pin configurations, and RoHS certification at pricing significantly below premium brands. The functional performance—mechanical strength, environmental protection, electrical reliability—meets industrial application requirements without premium brand markup.
Volume Pricing: Production quantities receive preferential pricing. OEMs building equipment in volume benefit from competitive connector costs while maintaining quality appropriate for industrial applications. Contact us for volume pricing based on your specific requirements and annual quantities.
Pricing Impact on Equipment Cost: For equipment using multiple circular connectors, component cost differences compound across production volumes. The pricing advantage of GX series connectors versus premium brands can meaningfully impact overall equipment cost and competitiveness.
For cost-sensitive industrial applications where connector functionality matters more than brand recognition, GX series delivers practical economics. Contact us for specific pricing based on your connector requirements and production volumes.
Stock Availability and Technical Support
Ready Stock from India Warehouse:
OX maintains GX series connector inventory across sizes (GX12-GX40), pin configurations, and mounting types. Stock availability means lead times measured in days supporting prototype builds, production shortages, and ongoing manufacturing requirements.
Comprehensive Range Simplifies Sourcing:
Instead of sourcing GX16 from one supplier, GX20 from another, different mounting types from a third, OX stocks the complete range. Single purchase order, unified pricing, one delivery point simplifies procurement.
RoHS Certification Documentation:
Certification documentation provided with orders supports compliance processes for equipment exported to European markets or customers requiring environmental compliance verification.
Technical Application Support:
Our team provides guidance on:
- Series selection based on pin count and current requirements
- Male/female and mounting type selection for application
- Contact configuration for specific wiring needs
- Installation best practices for reliable connections
Getting GX Series Circular Connectors from Stock
Contact [email protected] with your circular connector requirements:
Specify in inquiry:
- GX series size needed (GX12, GX16, GX20, GX25, GX30, GX35, GX40)
- Pin configuration required (2-20 pins depending on series)
- Male or female connector
- Mounting type (solder/cable mount, panel mount, hanging/in-line)
- Quantity for immediate requirement and production volumes
- Application context (helps recommend appropriate series/configuration)
What OX provides:
- Stock availability confirmation
- Competitive pricing for quantities specified
- Volume pricing for production requirements
- Lead time confirmation (typically days from India stock)
- RoHS certification documentation
- Technical specifications and dimensions
- Application guidance for connector selection
For industrial OEMs, equipment manufacturers, and system integrators requiring circular connectors with metal housing, screw locking, and multi-pin configurations—GX series connectors from OX provide military-grade construction at competitive pricing with ready stock availability in India.

