RS PRO Industrial Circular Connectors, 4, 4 Contacts, Cable, In-Line, SY21 Connector, Plug and Socket, Male and Female
- RS Stock No.:
- 304-458
- Brand:
- RS PRO
Bulk discount available
Subtotal (1 set)*
£19.68
(exc. VAT)
£23.62
(inc. VAT)
FREE delivery for orders over £50.00
Temporarily out of stock
- 10 unit(s) shipping from 18 December 2025
- Plus 20 unit(s) shipping from 15 January 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Set(s) | Per Set |
|---|---|
| 1 - 9 | £19.68 |
| 10 + | £18.11 |
*price indicative
- RS Stock No.:
- 304-458
- Brand:
- RS PRO
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | RS PRO | |
| Number of Contacts | 4, 4 | |
| Mounting Type | Cable, In-Line | |
| Connector Size | SY21 | |
| Plug/Socket | Plug, Socket | |
| Contact Gender | Female, Male | |
| Termination Method | Screw | |
| IP Rating | IP68 | |
| Current Rating | 10A | |
| Body Orientation | Straight | |
| Voltage Rating | 500V ac | |
| Mating Type | Bayonet | |
| Shell Size | 21mm | |
| Housing Material | Nylon 66, PC | |
| Pole Format | 4P | |
| Contact Plating | Gold | |
| Strain Relief | No | |
| Shielded/Unshielded | Unshielded | |
| Contact Material | Brass | |
| Outer Diameter | 29.4, 29mm | |
| Minimum Operating Temperature | -40°C | |
| Maximum Operating Temperature | 85°C | |
Select all | ||
|---|---|---|
Brand RS PRO | ||
Number of Contacts 4, 4 | ||
Mounting Type Cable, In-Line | ||
Connector Size SY21 | ||
Plug/Socket Plug, Socket | ||
Contact Gender Female, Male | ||
Termination Method Screw | ||
IP Rating IP68 | ||
Current Rating 10A | ||
Body Orientation Straight | ||
Voltage Rating 500V ac | ||
Mating Type Bayonet | ||
Shell Size 21mm | ||
Housing Material Nylon 66, PC | ||
Pole Format 4P | ||
Contact Plating Gold | ||
Strain Relief No | ||
Shielded/Unshielded Unshielded | ||
Contact Material Brass | ||
Outer Diameter 29.4, 29mm | ||
Minimum Operating Temperature -40°C | ||
Maximum Operating Temperature 85°C | ||
- COO (Country of Origin):
- CN
RS PRO Industrial Circular Connector, 4 Contacts, IP68, Bayonet Coupling
This RS PRO Industrial Circular Connector is designed for robust applications requiring high water resistance. With an IP68 rating, it ensures reliable performance in demanding environments. The bayonet coupling mechanism provides secure and quick connections, making it ideal for industrial settings.
Features and Benefits
IP68 Waterproof Connector: Offers superior protection against dust and water ingress, ensuring durability in harsh conditions
Bayonet Coupling: Allows for quick and secure connections, reducing installation time and improving reliability
4 Contacts: Supports multiple connections, enhancing versatility in various applications
Voltage Rating of 500 V AC: Suitable for high-voltage applications, providing flexibility in use
Nylon 66 and Polycarbonate Housing: Delivers robust protection and longevity, even in challenging environments
Gold-Plated Contacts: Ensures excellent conductivity and resistance to corrosion, enhancing performance
Wide Operating Temperature Range (-40°C to 85°C): Suitable for extreme temperature conditions, ensuring consistent performance
Bayonet Coupling: Allows for quick and secure connections, reducing installation time and improving reliability
4 Contacts: Supports multiple connections, enhancing versatility in various applications
Voltage Rating of 500 V AC: Suitable for high-voltage applications, providing flexibility in use
Nylon 66 and Polycarbonate Housing: Delivers robust protection and longevity, even in challenging environments
Gold-Plated Contacts: Ensures excellent conductivity and resistance to corrosion, enhancing performance
Wide Operating Temperature Range (-40°C to 85°C): Suitable for extreme temperature conditions, ensuring consistent performance
Applications
Industrial automation
Outdoor equipment
Marine environments
Heavy machinery
Outdoor equipment
Marine environments
Heavy machinery
Additional Information
Complies with IP68 standards for water and dust resistance
Available in both plug and socket configurations
Cable mount and in-line mount options for flexible installation
Available in both plug and socket configurations
Cable mount and in-line mount options for flexible installation
Why RS PRO?
RS PRO is the own brand of RS, offering professional quality products and solutions across all industries and technologies. Our product range is rigorously tested, inspected, and audited against demanding international standards to provide you with industrial-grade quality, at the right price. Making RS PRO your smart choice.
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