Eaton UTS78D33S Receptacle - IP68/69K Waterproof
Part Number: UTS78D33S
Quick Summary
Eaton UTS78D33S is a plastic waterproof receptacle for rugged PCB connections in industrial machinery. In harsh environments, ingress and cable management challenges slow deployment and heighten maintenance costs. The design delivers IP68/IP69K sealing with UL 1977, IEC 61984 compliance and RoHS exemption 6.c, providing regulatory confidence and long-term reliability. Its compact 3-contact layout and jam-nut mounting simplify panel integration, reducing space needs and installation time while aligning with Souriau UTS families for scalable, modular control panels.
Product Information
Extended Description
UTS78D33S Eaton: Plastic jam nut receptacle, without backshell, with 3 female PCB contacts, IP68/69K in unmated conditions; UTS78D33S
Product Name
Eaton Souriau UTS series plastic waterproof IP68/69k connector
Catalog Number
UTS78D33S
Product Length/Depth
25.3 mm
Product Height
24 mm
Product Width
24 mm
Product Weight
7.7 g
Compliances
ROHS exemption 6.c CSA-C22.2 No.182.3 (please contact us for more details) IEC 61984 (please contact us for more details) UL 1977 (please contact us for more details)
Current rating
7 A IEC 7 A UL
Environmental conditions
REACH Flammability rating UL94 HB RoHS
Environmental resistance
Resistant against acid bath UV resistant, no degradation after 5 years of exposure in natural environment Resistant against gasoline Resistant against basic bath Resistant against mineral oil Vibrations level Per IEC 60512-4 - from 10 to 2000 Hz Resistant against oil
Test current
7 A IEC 7 A UL 7 A CSA
Test voltage
50 V IEC 250 V CSA 250 V UL
Connector accessory option
No backshell possibility
Connector orientation
N
Connector type
Receptacle
Contact delivery
Loaded
Contact gender
Socket (Female)
Contact plating
Gold
Contact type
PCB
Coupling type
1/3 Bayonet
Degree of protection
IP68
Insert material
Neoprene
Layout
33
Shell material
Plastic
Shell size
8
Mating cycles
250
Operating temperature - max
105 °C
Operating temperature - min
-40 °C
Receptacle type
Jam Nut Receptacle
Number Of Contacts
3
Number of cavity #20
3
Nut material
Aluminium
Salt spray
500 hour
Feature → Business Impact → Application: IP68/IP69K sealing ensures reliable operation in washdown and dusty environments, reducing field failures and maintenance costs in food processing, mining, and outdoor equipment. Application: Machinery enclosures and robotic stations benefit from continuous protection against moisture and contaminants, extending service life and uptime. Feature → Business Impact → Application: 3 PCB contacts with gold plating delivers low contact resistance and high signal integrity, enabling precise sensor arrays and control lines in compact footprints. Application: Small-form panels and PLC interfaces requiring reliable low-voltage connections with longevity. Feature → Business Impact → Application: 1/3 bayonet coupling and jam-nut receptacle enable quick, backshell-free installation, cutting labor time and improving installation consistency in conveyor and packaging lines. Application: Tight installations where weight and space are at a premium. Feature → Business Impact → Application: 7 A current rating and voltage options up to 250 V support multiple control and monitoring circuits without frequent replacements. Application: Power and signal distribution in industrial automation cabinets. Feature → Business Impact → Application: Operating temperature range from -40 °C to 105 °C and 250 mating cycles provide resilience in extreme climates and long-term service in automotive, outdoor equipment, and material handling. Application: Rocky environments where temperature variation and frequent connect/disconnects occur. Feature → Business Impact → Application: Neoprene insert and aluminium nut offer robust sealing and mechanical stability, reducing ingress pathways and ensuring consistent torque during mounting. Application: Panel assemblies exposed to vibration, oils, and exposure to cleaning agents. This content uses industry terms like Souriau UTS series, jam-nut receptacle, PCB contacts, and 1/3 bayonet to maintain technical accuracy while staying accessible to engineers, procurement specialists, and technicians seeking measurable gains in reliability and lifecycle costs.
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FAQs
The UTS78D33S is designed as a jam-nut receptacle with a 1/3 bayonet coupling. To install without a backshell, mount the receptacle directly to the panel using the jam-nut, ensure proper sealing with the neoprene insert, and tighten to the specified torque to maintain IP68/69K integrity. This reduces component count and speeds up installation while maintaining environmental protection.
This connector provides a 7 A current rating with voltage options listed as 50 V IEC and 250 V UL/CSA. The 3 contact (PCB) configuration and gold-plated contacts support reliable low-voltage control and sensing signals, suitable for compact automation panels and device interconnects requiring robust performance.
Yes. The assembly carries IP68 and IP69K sealing, designed for unmated conditions in demanding environments. It also features UV resistance, chemical resilience, and oil/gas resistance, making it appropriate for outdoor equipment, washdown areas, and machinery exposed to harsh cleaning regimes.
The UTS78D33S complies with UL 1977, CSA-C22.2 No.182.3, IEC 61984, and RoHS exemptions 6.c. These certifications support safety, interoperability, and environmental compliance across North American and international markets, easing supplier qualification and regulatory submissions.
With a mating life of about 250 cycles and gold-plated PCB contacts, the contact resistance remains low and predictable over time. Routine inspection for seal integrity and insert wear is advised in harsh environments. Its lightweight plastic shell reduces mechanical stress on mounting, aiding long-term reliability in automation systems.