Raymarine ACU-300 Solenoid Actuator Control Unit

Description

The Raymarine ACU-300 Solenoid Actuator Control Unit, SKU E70139, is an Evolution autopilot drive controller for compatible solenoid-controlled hydraulic steering and constant-running hydraulic pumps. It manages steering solenoids and bypass valves rather than directly powering a reversible motor or hydraulic pump. This is an actuator control unit only and requires a compatible EV-1 sensor core, p70-series control head, SeaTalkng network, steering valves, hydraulic equipment, and complete vessel installation.

The ACU-300 operates from 12V or 24V DC and provides up to 5A continuous output for compatible solenoid drive circuits, plus up to 1.8A for a bypass valve supply. It is intended for dry protected bulkhead mounting, weighs approximately 2.2 kg, and uses an IPX2 drip-resistant enclosure. Confirm solenoid type, valve voltage, current requirements, pump system, safety circuits, feedback needs, and system compatibility before purchase.

Key Specifications

• Raymarine Evolution solenoid actuator control unit, SKU E70139.
• Designed for compatible solenoid-controlled electro-hydraulic steering and constant-running hydraulic pumps.
• Operates from 12V or 24V DC electrical systems.
• Provides up to 5A continuous output for compatible steering-solenoid circuits.
• Provides up to 1.8A supply for a compatible bypass valve.
• Requires an EV-1 sensor core, p70s or p70Rs control head, SeaTalkng network, solenoid valves, and complete steering system.
• Uses SeaTalkng networking with NMEA 2000 integration through compatible network components.
• Uses an IPX2 drip-resistant enclosure and requires dry protected internal mounting.

System Integration

The ACU-300 is not intended for direct control of a reversible hydraulic pump, wheel drive, tiller drive, linear actuator, or rotary mechanical drive. It is specifically intended for steering systems where a constant-running hydraulic pump is controlled through solenoid valves. Verify that the vessel has the appropriate valve arrangement, electrical characteristics, pressure and flow design, bypass system, and safety provisions.

Virtual Rudder Feedback may be available in compatible Evolution configurations, but large-vessel and solenoid-controlled systems can require a physical rudder-feedback sensor. Confirm the required feedback method, valve wiring, control logic, and vessel steering-gear requirements before installation.

Installation Considerations

Mount the ACU-300 in a dry accessible location with protected power, SeaTalkng, solenoid, and bypass-valve wiring. Label every valve wire, use appropriate conductor size and circuit protection, and keep low-level sensor and network cables separate from high-current pump circuits. Follow Raymarine installation guidance for valve configuration, steering checks, dockside setup, and sea-trial testing.

Before Ordering

Confirm a compatible solenoid-controlled hydraulic steering system, constant-running pump arrangement, solenoid voltage and current at or below 5A, bypass-valve requirement, 12V or 24V supply, EV-1 sensor core, p70-series control head, SeaTalkng network, physical-feedback requirement, dry mounting space, safety-system compatibility, and complete hydraulic installation components before purchase.