Control units
The actuator control unit sits between the EV sensor and the drive. Which one you need follows the drive and the steering.
Choose your ACU.
The actuator control unit sits between the EV sensor and the drive. Which one you need follows the drive and the steering.
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ACU-100
Entry Evolution control unit for the cockpit drives and the Type 0.5 pump, on 12 V.
The ACU-100 is the smallest Evolution actuator control unit: the box that houses the power and drive electronics and connects the autopilot to the steering and the 12 V supply. It works with an EV-1 sensor core, a control head and a compatible drive.
Raymarine lists three drives for it: the Cockpit Tiller Drive, the Cockpit Mk II Wheel Drive and the Type 0.5 Hydraulic Pump (50 to 110 cc, 12 V systems). It runs from 12 V only (10.8 to 15.6 V) and delivers up to 7 A continuous drive current. It is the unit in the EV-100 Tiller, Wheel and Power packs. For bigger drives or 24 V systems, step up to the ACU-200, and for hydraulic steering only, the ACU-150.
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ACU-150
Control unit for hydraulic steering only, with a Type 1 12 V pump, 80 to 230 cc.
The ACU-150 is an Evolution actuator control unit for hydraulic steering only. It is designed around a Type 1 12 V hydraulic pump and suits steering rams of 80 to 230 cc. It pairs with an EV-1 sensor core and a control head, and delivers up to 12 A of continuous drive current.
It runs from 12 V (10.8 to 15.6 V). It is the unit in the EV-150 Power pack for small to medium powerboats. It does not support mechanical drives, which is the main difference from the ACU-200, and it does not run at 24 V. Raymarine has published an important-information notice about the ACU-150 and ACU-400 on its site, so ask us for the current position before ordering.
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ACU-200
Control unit for Type 1 hydraulic pumps and mechanical linear and rotary drives, 12 or 24 V.
The ACU-200 is the mid-range Evolution actuator control unit. It handles Type 1 hydraulic pumps (80 to 230 cc) and Type 1 mechanical linear and rotary drives, so it covers both powerboats with hydraulic steering and sailing boats with mechanical steering. The Type 1 rotary and linear drives are rated for vessels up to 11,000 kg.
Unlike the ACU-100 and ACU-150 it runs from 12 or 24 V (10.8 to 31.2 V) and delivers up to 15 A of continuous drive current, with a clutch output of up to 4 A. It is the unit in the EV-200 Power and EV-200 Sail packs. For the larger Type 2 and 3 drives, the ACU-400 is the next step.
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ACU-300
Control unit for solenoid-controlled steering and constant-running hydraulic pumps.
The ACU-300 is the Evolution actuator control unit for solenoid-controlled steering, where the autopilot opens and closes valves on a constant-running hydraulic pump rather than driving a pump or ram. It connects directly to the external solenoid control.
It pairs with an EV-1 sensor core and either a p70s control head, for sailing boats, or a p70Rs, for powerboats. It runs from 12 or 24 V (10.8 to 31.2 V) and supplies up to 5 A of continuous drive current. It is the unit in the EV-300 Solenoid pack. If your steering is not solenoid controlled this is not the right unit; the ACU-100, 150, 200 or 400 cover pumps, rams and rotary drives.
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ACU-400
Largest Evolution control unit, for Type 2 and 3 drives, with 30 A of drive current.
The ACU-400 is the largest Evolution actuator control unit, made for the bigger Type 2 and Type 3 drives, including rotary, mechanical linear, hydraulic linear and hydraulic pump types. Raymarine lists those drives for vessels from roughly 20,000 kg up to 35,000 kg, depending on the drive.
It runs from 12 or 24 V (10.8 to 31.2 V) and supplies up to 30 A of continuous drive current, with a clutch output of up to 4 A. It pairs with an EV-1 sensor core and a p70s or p70Rs control head. It is the unit in the EV-400 Sail and EV-400 Power packs. Raymarine has published an important-information notice about the ACU-150 and ACU-400 on its site, so ask us for the current position before ordering.
The ACU is chosen with the drive, not separately — they are a pair.
Commissioned on the water
Dockside setup, then a sea trial to calibrate the compass and tune the steering response. It is signed off working, on the water.
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