Circular Cable Assemblies

Part Number	Description / PDF	Quantity
PXPPVC12FBF03ACL010PVC Bulgin	CBL FMALE TO WIRE LEAD 3P 3.28'	86
PXPPVC12RAM04DCL010PVC Bulgin	CBL MALE RA TO WIRE LD 4P 3.28'	85
PXPPVC12FBF08ACL010PVC Bulgin	CBL FMALE TO WIRE LEAD 8P 3.28'	24
PXPTPU12FIM08XFI020PU Bulgin	CBL ASSEMBLY 8POS MALE TO M 2M	47
PXS410/10/08P Bulgin	CBL ASSEMBLY 8POS M TO WIRE 10M	0
PXPPVC08FBF03ACL010PVC Bulgin	CBL FMALE TO WIRE LEAD 3P 3.28'	82
PXPTPU12FBF08XCL020PU Bulgin	CBL FMALE TO WIRE LEAD 8P 6.56'	22
PXPTPU12FIM04ACL010PUR Bulgin	CBL MALE TO WIRE LEAD 4POS 3.28'	73
PXPTPU12FBF05ACL010PUR Bulgin	CBL FMALE TO WIRE LEAD 5P 3.28'	83
PXPPVC12FIM08ACL010PVC Bulgin	CBL MALE TO WIRE LEAD 8POS 3.28'	167
PXS410/02/08P Bulgin	CBL ASSEMBLY 8POS M TO WIRE 2M	25
PXS410/02/06P Bulgin	CBL ASSEMBLY 6POS M TO WIRE 2M	25
PXPPVC05FBF04ACL010PVC Bulgin	CBL FMALE TO WIRE LEAD 4P 3.28'	0
PXPTPU08RAF04ACL010PUR Bulgin	CBL FMALE RA TO WIRE 4POS 3.28'	24
PXPTPU12FBF04SCL010PUR Bulgin	CBL M12 S FMALE TO WIRE 4POS 1M	50
PXPPVC12RAM03ACL010PVC Bulgin	CBL MALE RA TO WIRE LD 3P 3.28'	100
PXPPVC08FIM04ACL010PVC Bulgin	CBL MALE TO WIRE LEAD 4POS 3.28'	87
PXPTPU12RAF05BCL010PUR Bulgin	CBL FMALE RA TO WIRE 5POS 3.28'	93
PXPPNP12RAF04ACL050PVC Bulgin	CBL M12 A F R/A TO WIRE 4POS 5M	50
PXPPVC12RAM04ACL010PVC Bulgin	CBL MALE RA TO WIRE LD 4P 3.28'	31

Circular Cable Assemblies

1. Overview

Circular Cable Assemblies are engineered interconnect solutions designed to transmit electrical signals or power through circular-shaped connectors. These assemblies combine multiple wires or cables terminated with circular connectors, ensuring reliable connectivity in demanding environments. Their importance spans across industries requiring robust, high-density, and high-performance connections, particularly in applications where space constraints and environmental resilience are critical.

2. Main Types and Functional Classification

Type	Functional Features	Application Examples
Circular Push-Pull	Quick-mating design with mechanical locking	Industrial automation, medical devices
Circular Threaded	Vibration-resistant threaded coupling	Aerospace, military equipment
Waterproof Circular	IP67+ sealing against liquids and dust	Outdoor telecom equipment, underwater sensors
High-Density Circular	Miniaturized contacts for compact designs	Avionics, robotics

3. Structure and Components

A typical circular cable assembly consists of:

Conductors: Copper/aluminum for signal/power transmission
Insulation: PVC/TPE/PUR jackets for dielectric protection
Shielding: Braided copper or foil for EMI/RFI protection
Connector Housing: Metal/plastic shells with precision contacts
Retention System: Latches, threads, or bayonet couplings

Modular designs allow customization with hybrid signal/power/RF configurations.

4. Key Technical Specifications

Parameter	Importance
Current Rating (Amps)	Determines power transmission capacity
Voltage Rating (Volts)	Defines dielectric strength and safety margins
Contact Resistance (m )	Impacts signal integrity and power efficiency
Operating Temperature (-40 C to +125 C)	Ensures reliability in extreme environments
Mating Cycles (1000-10,000)	Indicates mechanical durability
IP Rating (IP65-IP68)	Defines environmental protection level

5. Application Fields

Primary industries include:

Industrial Automation: PLCs, CNC machines, robotic arms
Telecommunications: 5G base stations, fiber optic enclosures
Medical Equipment: MRI scanners, patient monitoring systems
Aerospace: Avionics, flight control systems
Transportation: Rail signaling systems, EV charging stations

Case Study: In automotive manufacturing, circular assemblies enable high-vibration resistance connections in robotic welding cells operating 24/7.

6. Leading Manufacturers and Products

Manufacturer	Representative Product
TE Connectivity	DEUTSCH DT Series circular connectors
Amphenol	CIRCULAR C Series high-density connectors
Molex	Circular Rast 55 series for industrial control
Delphi	Weatherproof automotive circular connectors

7. Selection Guidelines

Key considerations:

Electrical requirements (current/voltage profiles)
Environmental conditions (temperature, moisture, chemical exposure)
Mechanical demands (vibration, mating cycles, cable bend radius)
Space constraints (connector size and orientation)
Industry-specific certifications (e.g., MIL-STD, UL, RoHS)

Recommend verifying compatibility with existing infrastructure and performing thermal cycling tests for critical applications.

8. Industry Trends

Emerging developments include:

Miniaturization while maintaining high contact density
Integration of fiber optics and high-speed data transmission
Adoption of composite materials for weight reduction
Growing demand for waterproof connectors in outdoor IoT deployments
Standardization of hybrid power/signal interfaces in EV charging

Market forecasts predict 8.2% CAGR through 2027 driven by industrial IoT and 5G infrastructure investments.