MTA equips Navistar models with power control, protection devices

A specialist in electromechanical and electronic products for major truck OEM has landed in specifications for Navistar HX, WorkStar and five other heavy duty model series. Navistar has chosen two MTA control units for the distribution of power and the protection of the main electrical services: the PDM Underhood and the frame-mounted PDM Chassis.

PDM Chassis, Underhood

9-way frame with 9 fuse modules

PCM electromechanical units are specifically geared for heavy transport, and distinguished by design choices and materials that allow the two products to operate in particularly harsh or corrosion-prone environments. MTA incorporates plastics with a V-2 flammability rating and stainless steel screws. Both the Underhood and Chassis units have thick busbars that can handle high currents at high temperatures; areas housing the fuses have specific protection classes (IP69K for Underhood; IP67 for Chassis).

Navistar has chosen PDM Underhood for its compact size, made possible by the use of high-performance, next generation MaxiCompact fuses. A reduction in overall device size—60 percent compared to alternative designs—enables the Underhood to accommodate a higher number of fuses.

MTA directly supplies pre-assembled PDM units with the target number of fuses required for the specific application on which they will be installed, eliminating the need for intermediate steps in Navistar truck assembly and preparation. MTA also supplies the company with a series of cabin-mounted products, among them 9-way frame with 9 fuse modules, whose flexibility allows for different OEM configurations. All modules are supplied with terminals and equipped with a secondary lock to ensure correct insertion of the terminal and to avoid possible shifting out of position. — MTA S.p.A, Codogno, Italy,