RS PRO Industrial Circular Connectors, 3 Contacts, In-line, SP21 Connector, Socket, Male, IP68

View this category
Bulk discount available

Subtotal (1 unit)*

£7.10

(exc. VAT)

£8.52

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 8 unit(s) shipping from 27 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 - 9£7.10
10 - 24£6.53
25 +£5.89

*price indicative

RS Stock No.:
304-659
Brand:
RS PRO
Find similar products by selecting one or more attributes.
Select all

Brand

RS PRO

Number of Contacts

3

Mounting Type

In-line

Connector Size

SP21

Plug/Socket

Socket

Contact Gender

Male

Termination Method

Solder

IP Rating

IP68

Current Rating

30A

Body Orientation

Straight

Voltage Rating

500V ac

Mating Type

Threaded Coupling

Shell Size

21mm

Housing Material

Nylon 66, PC

Pole Format

3P

Contact Plating

Gold

Strain Relief

No

Shielded/Unshielded

Unshielded

Minimum Operating Temperature

-40°C

Outer Diameter

29mm

Maximum Operating Temperature

85°C

Contact Material

Brass

COO (Country of Origin):
CN

RS PRO Industrial Circular Connector, IP68 Waterproof, 3 Contacts, Threaded Coupling


This 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 moisture protection is critical. The connector offers flexibility with panel mount, cable mount, and in-line cable mount options, making it suitable for various connection needs.

Features and Benefits


IP68 Waterproof Connector: Ensures high water resistance for use in demanding 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

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

Gold-Plated Contacts: Enhances conductivity and reduces corrosion

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

Applications


Industrial machinery
Outdoor equipment
Marine applications
Automation systems

Additional Information


Key Standards: Complies with IP68 for water and dust protection

Contact Material: Brass with gold plating for improved durability and conductivity

Operating Temperature Range: Suitable for environments from -40 °C to 85 °C

This industrial circular connector is an essential component for ensuring reliable connections in harsh conditions, making it a valuable addition to any industrial setup.

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