What Is an OHS Series 4 Pin Bayonet Circular Connector ?
OHS-BC-1-4/10-P-12-1-B is an OHS series Russian ultra-small bayonet circular connector introduced by Premier Cable. Featuring four female contacts, a straight cable-mount configuration and solder termination, it is primarily designed for multi-circuit electrical connections between equipment and cables.
The OHS series primarily uses legacy circular connector technology and is widely applied in DC and AC circuits of electrical equipment, radio equipment and control instruments.
The series consists of plugs and receptacles and incorporates a bayonet coupling mechanism. Different contact arrangements and keying configurations are available to accommodate the installation and mating requirements of various equipment interfaces.
This product features shell size 10, four female contacts and a straight tail attachment. The front mating interface establishes electrical connections with a compatible male-contact receptacle, while the rear solder terminals provide connections to individual conductors. The external cable boot protects the cable exit area.
Compared with conventional open terminal connections, this product integrates multiple independent circuits into a single circular interface, making it suitable for equipment with limited installation space, repeated connection requirements or existing Russian-standard interfaces.
What Is This Product ?
OHS-BC-1-4/10-P-12-1-B is an OHS series Russian ultra-small bayonet circular connector introduced by Premier Cable. Featuring four female contacts, a straight cable-mount configuration and solder termination, it is primarily designed for multi-circuit electrical connections between equipment and cables.
The OHS series primarily uses legacy circular connector technology and is widely applied in DC and AC circuits of electrical equipment, radio equipment and control instruments.
The series consists of plugs and receptacles and incorporates a bayonet coupling mechanism. Different contact arrangements and keying configurations are available to accommodate the installation and mating requirements of various equipment interfaces.
This product features shell size 10, four female contacts and a straight tail attachment. The front mating interface establishes electrical connections with a compatible male-contact receptacle, while the rear solder terminals provide connections to individual conductors. The external cable boot protects the cable exit area.
Compared with conventional open terminal connections, this product integrates multiple independent circuits into a single circular interface, making it suitable for equipment with limited installation space, repeated connection requirements or existing Russian-standard interfaces.
Products Specification
| Model | OHS-BC-1-4/10-P-12-1-B |
| Series | OHS Series |
| Connector Type | Cable-Mount Plug |
| Contact Gender | Female / Socket Contacts |
| Number of Positions | 4 Pin |
| Shell Size | 10 |
| Contact Size | $1.0 mm |
| Orientation | Straight |
| Coupling Type | Bayonet Connection |
| Termination | Solder |
| Shell Material | Aluminum Alloy |
| Shell Finish | Anodized |
| Contact Material | Copper Alloy |
Products Display
Product Features
Ultra-Small Four Position Configuration
The OHS series connector features a compact size 10 circular housing with four female contacts, integrating four independent electrical circuits into a single interface. It reduces connector count and saves installation space, making it suitable for compact industrial equipment and multi-circuit wiring systems.
Bayonet Coupling Mechanism
The bayonet coupling mechanism enables quick locking and unlocking through insertion and a short rotational movement, eliminating the need for multiple turns. When paired with a compatible receptacle, matching keying and contact arrangement, it provides a secure mechanical connection for convenient equipment installation and maintenance.
Silver Plated Copper Alloy Female Contacts
The connector features four Φ1.0 mm silver-plated copper alloy female contacts, providing good conductivity and electrical contact characteristics. The independently arranged contacts support multiple signal or power connections, while actual electrical performance depends on mating conditions and termination quality.
Straight Cable Outlet and Solder Termination
The straight cable-mount design features rear solder contacts for conductor termination according to the required circuit arrangement. A black straight cable boot covers the rear connector section and cable exit, facilitating organized cable routing. Additional insulation and strain relief can be incorporated according to installation requirements.
Core Application Scenarios
Core Performance Advantages
How to Select the Correct Mating Connector ?
OHS-BC-1-4/10-P-12-1-B is a four-position female-contact cable-mount plug. It should be paired with a receptacle featuring compatible male contacts, the corresponding contact arrangement and a matching bayonet coupling mechanism.
The following information should be verified during selection:
- Whether the shell size is 10.
- Whether the contact quantity and arrangement correspond to the four-position configuration.
- Whether the mating connector uses male contacts.
- Whether the keying and bayonet coupling configurations match.
- Whether the contact numbering and circuit assignments meet the equipment requirements.
- Whether the electrical ratings and actual operating environment satisfy the application requirements.
Does this connector use a bayonet coupling mechanism ?
Yes. The product uses a bayonet coupling mechanism that locks through mechanical engagement with a compatible receptacle. The bayonet configuration, keying and contact arrangement must match. The connector should never be forced into position or rotated against mechanical resistance.
What is the purpose of the black cable boot ?
The black cable boot covers the rear connector section and cable exit area, helping organize the cable and provide a degree of mechanical protection at the cable outlet. Its actual strain-relief and sealing performance depends on the boot material, dimensions, assembly method and complete product design. Waterproof performance or a specific protection rating should not be assumed from its appearance alone.
Does Premier Cable support customization and wholesale procurement ?
Premier Cable can evaluate conductor specifications, cable lengths, contact wiring assignments, tail attachments and complete cable assembly solutions for OHS series connectors according to customer project requirements. For wholesale and OEM projects, customers are encouraged to provide the complete part number, mating interface drawings, purchase quantity and technical requirements to confirm the specific customization solution and delivery conditions.
Why Is This Product Needed ?
In industrial control, instrumentation and legacy communication equipment, some systems have long adopted Russian-standard circular connectors as their standard electrical interfaces.
When equipment requires maintenance, cable replacement, system upgrades or additional external connection components, conventional industrial connectors may not match the original shell dimensions, contact arrangements, coupling mechanisms or keying configurations.
OHS-BC-1-4/10-P-12-1-B addresses these connection requirements by providing a compact four-position female-contact configuration, allowing customers to evaluate a suitable cable connection solution for their existing equipment interfaces.
Its bayonet coupling mechanism facilitates installation and removal, solder termination allows conductors to be configured according to project requirements, and the straight tail attachment helps organize and protect the cable exit area.
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