Multiquip C3214005702 Control Box - OEM Replacement Part for Super Silent Generators

The control box serves as the central electrical control interface for Multiquip DCA400SSI4F super silent generators, managing the open-delta excitation system and integrating with the ECU controller and gauge unit assembly. This critical component houses the control electronics that regulate voltage output, monitor operational status, and coordinate the automatic voltage regulator (AVR) system during both steady-state loads and heavy-load conditions such as motor starting.

The control box interfaces directly with the generator's state-of-the-art open-delta excitation system, which features electrically independent windings wound among the stationary AC output section windings. During operation, it manages the parallel connections of phases A to B, A to D, and C to D for steady-state loads, and coordinates the AVR's automatic switching to series connection (B to C) during heavy loads to provide enhanced excitation and superior voltage response. During maintenance procedures involving CN9-CN10 connections or O-Ground line disconnection, the control box must be properly isolated following the generator wiring diagram specifications.

This control box is compatible with the following Multiquip generator models:

• DCA400SSI4F

Genuine Multiquip OEM part, sold by an authorized dealer.