SIST EN 3660-008:2010

SIST EN 3660-008:2010 is the Slovenian adoption of EN 3660-008:2010, a European aerospace product standard for cable outlet accessories for circular and rectangular electrical and optical connectors. It specifies style C, self-locking, 45°, shielded (cone grounding), unsealed cable outlets with clamp strain relief, including their dimensions, interfaces, materials, testing, designation and marking.

What does SIST EN 3660-008:2010 specify?

SIST EN 3660-008:2010 specifies a defined range of cable outlets for aerospace connector applications. The document is written for accessories that terminate individual and/or overall screens and that are used with EN 3660-002 associated connectors.

The standard is organized into scope, normative references, terms and definitions, characteristics, designation, marking and technical specification. In practice, that lets a designer or buyer move from the application limits to the exact mechanical interface, then to the checks needed for qualification and identification.

What are the key requirements of SIST EN 3660-008:2010?

SIST EN 3660-008:2010 sets out the main product characteristics for the cable outlet body, its interface, its materials and the tests used to qualify it.

Geometry and interface

Clause 4.1 gives the dimensions and mass, and Figure 1 and Table 1 define the shell sizes and basic form. Clause 4.2 links the accessory to the associated connection in EN 3660-002 and also gives a modified AS85049 interface in Figure 2, Figure 3 and Table 2. For users, this is the key fit check - it tells you whether the accessory will mate correctly with the connector family and how much space the assembly needs.

Materials, finish and classes

Clause 4.3 assigns material and finish by class: Class N, Class W and Class K. The scope also gives the operating temperature ranges for those classes. In practice, the class chosen fixes the environmental capability and the permitted material/finish combination, so it is a direct purchasing and design decision.

Installation and mechanical limits

Clause 4.4 gives assembly torque values for installation, while Clause 4.5 gives coupling thread strength torque values for test purposes. Table 6 gives rotation torque limits for coupling and uncoupling. These values matter because they control how the cable outlet is assembled and how much load the threaded interface must withstand without damage.

Qualification and environmental testing

Clause 4.6 defines the test program and points to EN 3660-001 and EN 2591-100. The listed checks include visual inspection, dimensions and mass, electrical continuity, surface transfer impedance, temperature endurance, rapid temperature change, mould growth, salt mist, sand and dust, low air pressure immersion, fluid resistance, ozone resistance, flammability, fire-resistance, shock, vibration, mechanical endurance, mating and unmating forces, mechanical strength, locking wire hole strength and magnetic permeability. For qualification, this means the accessory has to prove both electrical and mechanical performance under aerospace environmental conditions.

Identification and marking

Clause 5 gives the designation system, combining the standard number, material/finish class, shell size and variant with or without wire lock holes. Clause 6 points to EN 3660-001 for marking, and Clause 7 points to EN 3660-001 for the technical specification. This helps procurement and production identify the exact variant without ambiguity.

What terms does SIST EN 3660-008:2010 define?

SIST EN 3660-008:2010 uses the terms and definitions from EN 3660-001:2006.

• Style C - the product form used for this family of cable outlet accessories.
• Self-locking / anti-decoupling - a feature that helps prevent unintended loosening of the cable outlet.
• Shielded (cone grounding) - a design intended to terminate screens through cone grounding.
• Unsealed - a non-environmentally sealed construction.
• Clamp strain relief - the clamp that holds the cable and reduces pull on the termination.
• Shell size - the connector size designation used to select the matching accessory.
• Class N, Class W, Class K - the material/finish and temperature-capability classes used in this standard.

Who uses SIST EN 3660-008:2010?

SIST EN 3660-008:2010 is used by aerospace connector designers, cable harness engineers, quality teams, test laboratories and purchasing staff. Designers use it to select the right shell size, interface and class. Test labs use it for qualification and environmental checks. Buyers and quality managers use it to specify the exact variant and verify that the supplied part matches the standard.

Which standards are used with SIST EN 3660-008:2010?

• EN 2591-100 - provides the general test methods for electrical and optical connection elements.
• EN 3660-001:2006 - gives the terms and definitions, the technical specification and the marking reference for this product family.
• EN 3660-002 - identifies the associated connector and the index of product standards.
• AS85049B - provides the general connector accessory specification used for the modified interface reference.

What does the SIST EN 3660-008:2010 document contain?

SIST EN 3660-008:2010 contains Figure 1 for the cable outlet form and dimensions, Figure 2 and Figure 3 for the modified AS85049 interface, and Tables 1 to 6 for sizes, interface dimensions, material/finish, torques, test conditions and rotation torque limits. It also gives a designation code example so users can order the correct shell size, class and wire-lock-hole variant. The technical content is aimed at design control, qualification testing and product identification.