RS PRO Industrial Circular Connectors, 4, 4 Contacts, Cable, In-Line, SP21 Connector, Plug and Socket, Male and Female

View this category
Bulk discount available

Subtotal (1 set)*

£18.19

(exc. VAT)

£21.83

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • 3 unit(s) shipping from 20 November 2025
  • Plus 20 unit(s) shipping from 22 January 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Set(s)
Per Set
1 - 9£18.19
10 +£16.74

*price indicative

RS Stock No.:
304-418
Brand:
RS PRO
Find similar products by selecting one or more attributes.
Select all

Brand

RS PRO

Number of Contacts

4, 4

Mounting Type

Cable, In-Line

Connector Size

SP21

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

Threaded Coupling

Shell Size

21mm

Housing Material

Nylon 66, PC

Pole Format

4P

Strain Relief

No

Shielded/Unshielded

Unshielded

Contact Plating

Gold

Contact Material

Brass

Minimum Operating Temperature

-40°C

Outer Diameter

29, 29.3mm

Maximum Operating Temperature

85°C

COO (Country of Origin):
CN

RS PRO Industrial Circular Connector, IP68 Waterproof, 4 Contacts


The RS PRO Industrial Circular Connector is designed for robust applications requiring high water resistance and reliable performance. With an IP68 rating, it is ideal for environments where protection against dust and water ingress is critical. This connector offers flexibility with options for panel mount, cable mount, and in-line cable mount configurations, making it suitable for a variety of installation needs.

Features and Benefits


IP68 Waterproof Connector: Ensures high water resistance for use in harsh environments

Threaded Coupling: Provides secure and reliable connections

Multiple Mounting Options: Available in panel mount, cable mount, and in-line cable mount for versatile installation

90-Degree Cable Mount Option: Offers additional flexibility for installation in tight spaces

Gold-Plated Contacts: Enhances conductivity and reduces corrosion

Durable Housing Material: Made from Nylon 66 and Polycarbonate for long-lasting performance

High Voltage Rating: Supports up to 500 V AC for demanding applications

Applications


Industrial machinery
Outdoor equipment
Marine environments
Automotive systems

Additional Information


Available in both male and female configurations
Screw termination method for secure connections
Operating temperature range from -40 °C to 85 °C
Unshielded design suitable for various applications
Connector size SP21 with a shell size of 21 mm

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.

Related links