Bennett BOLT BRC4000 Trim Tab Control connections

BRC4000 is the basic rocker control for Bennett BOLT electric trim tabs. This record covers a 12 V system with one actuator per tab and the compatible wiring harnesses. It does not represent hydraulic Bennett pumps, a dual-actuator arrangement, the separate BCI indication controller or an AutoTrim Pro installation. The manual’s 20 A requirement describes the protected supply capability, not a measured continuously operating load, so no ampDraw is invented.

Connect orange to 12 V positive through the specified 20 A fuse and black to the negative return. Join the labeled port and starboard harnesses as shown: red marking identifies port and green marking starboard. The motor drive changes direction, so neither conductor of an actuator pair can be modeled as a permanently positive or negative distribution output. The catalog therefore keeps the two actuator harnesses as connector markers without fabricated DC continuity.

Use the BRC4000 mounting template and the specified 2.5-inch hole, leaving room behind the panel for the harness. Support the cable so it cannot pull on the control. Follow the BOLT actuator and tab placement, fastener and sealing instructions for the actual hull rather than choosing position from an electrical diagram. Check clear travel and sound mounting; do not use the tabs as a lifting or boarding support.

With the boat secured and people clear, operate each rocker direction briefly while an observer checks the actual tab response against the manual’s bow-control diagram. Confirm both actuators run and stop and that port/starboard harnesses are not crossed. Inspect supply voltage during movement if response is slow or intermittent. On the water, use small trim adjustments and observe the boat response. This page stays an overview because reversing actuator wiring and actual current must be verified for the installed tab system.

Bennett Marine installation manual, BOLT Installation & User’s Guide, 40-page edition; quick-start supply requirements and BRC4000 section; printed p. 24 single-actuator wiring diagram visually verified. The original PDF is retained in the marine source ledger. The drawing represents the identified electrical interfaces; it does not simulate the equipment’s mechanical performance, radio signals or fluid system. Unpublished connector ampacity and startup current remain unspecified.