APEX/EN4644 High Density Modular System

A high density, rectangular, modular connection system designed for use in avionics systems conforming to the EN4644 technical specification. Plug and Receptacle housings are a single piece, high-grade aluminum construction, precision-machined to ensure a lifetime of reliable operation. Housings are available in panel, rack or cable-to-cable mounting styles. Housings may be plated with nickel or aluminum chromate. Housings accommodate a wide range of modules, where each module is keyed to ensure proper orientation during installation. Plug and Receptacles shells may be configured with either pin or socket modules, depending on customer preference.
Housing-to-housing connectivity is assured using a center coupling screw, which may be a simple alignment feature or a multi-keyed jack screw and nut. Modules are made out of ULTEM, a rugged Polyethermide plastic which is highly resistive to chemicals, stable through temperature and humidity variation, and with FAA FAR25 approved flammability and toxicity characteristics. Internally, stainless steel retaining clips ensure reliable locking under all operating conditions. Modules are rear insert, allowing cabling to be accomplished separately from panel mounting.
Each module may have an environmental rear seal of silicone elastomer, which is bonded to the housing using APCD’s proprietary Epoxy sealant, proven superior in over 30 years use in the M81714 military module market. An interfacial seal front seal provides module to module sealing when mated, ensuring IP67 level performance. Typical applications include wing actuators, power generation and control, Ethernet distribution networks, electronic load management systems, and galleys.

Features & Benefits

Blind-Mate connection
Ease of use

Silicone Elastomer Facial & Wire Sealing
Environmental performance to IP67

ULTEM module housings
Chemical resistance, Flammability & Toxicity compliance

Wide range of Module Configurations
Application flexibility

EN4644 Conformance
Intermateability with other manufacturers and 1000’s of existing installations
-65C to +175C
Wide operating temperature range