RS PRO Circular Connector, 4 Contacts, In-Line Cable Mount, SP21 Connector, Plug, Socket, Male/Female, IP68, SP21 Series

RS Stock No.:: 304-418
Manufacturer:: RS PRO

RS PRO Circular Connector, 4 Contacts, In-Line Cable Mount, SP21 Connector, Plug, Socket, Male/Female, IP68, SP21 Series

Bulk discount available

Subtotal (1 set)*

SGD32.73

(exc. GST)

SGD35.68

(inc. GST)

FREE delivery for orders over $150, or create a business account to enjoy free delivery from just $28

Temporarily out of stock

8 unit(s) shipping from 22 January 2026
Plus 60 unit(s) shipping from 19 February 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Set(s)	Per Set
1 - 9	SGD32.73
10 +	SGD30.12

*price indicative

RS Stock No.:: 304-418
Manufacturer:: RS PRO

Specifications

Technical data sheets

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
	Product Type	Circular Connector
	Mount Type	In-Line Cable Mount
	Connector Size	SP21
	Current	10A
	Plug/Socket	Plug, Socket
	Contact Gender	Male/Female
	IP Rating	IP68
	Series	SP21
	Orientation	Straight
	Voltage	500 V
	Termination Type	Screw
	Minimum Operating Temperature	-40°C
	Shell Size	29.3P
	Mating Type	Threaded Coupling
	Housing Material	Polyamide 66, Polycarbonate
	Maximum Operating Temperature	85°C
	Standards/Approvals	RoHS
	Pole Format	4
	Contact Plating	Gold
	Contact Material	Brass

	Select all
	Brand RS PRO
	Number of Contacts 4
	Product Type Circular Connector
	Mount Type In-Line Cable Mount
	Connector Size SP21
	Current 10A
	Plug/Socket Plug, Socket
	Contact Gender Male/Female
	IP Rating IP68
	Series SP21
	Orientation Straight
	Voltage 500 V
	Termination Type Screw
	Minimum Operating Temperature -40°C
	Shell Size 29.3P
	Mating Type Threaded Coupling
	Housing Material Polyamide 66, Polycarbonate
	Maximum Operating Temperature 85°C
	Standards/Approvals RoHS
	Pole Format 4
	Contact Plating Gold
	Contact Material Brass

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.