Raymarine ACU-400 Actuator Control Unit for Hydraulic, Linear & Rotary Drives (Part E70100)

Autopilot Control Unit (ACU)

The rugged ACU (Actuator Control Unit) delivers reliable autopilot drive power and also provides power to the SeaTalk^ng bus. Choose the ACU that fits your steering system type.

Drive Current Output
Maximum continuous 30 Amps at supply voltage
Drive Clutch Output

• Up to 4 Amp continuous at 12V on 12V systems
  
• Up to 4 Amp continuous at 24V on 24V systems
  
• Up to 4 Amp continuous at 12V on 24V systems

Connections

• Includes the M81105 Rotary Rudder Reference
• Sleep switch
  
• Power
  
• Drive motor
  
• Drive clutch
  
• Ground
  
• Digital Input / Output (DIO)

Nominal supply voltage
12 V or 24 V
Operating voltage range
10.8V to 31.2V dc
Power Consumption (standby) - Main Power Supply
300 mA (12/24V)
Power Consumption (standby) - SeaTalk^ng Power Supply
20 mA (12V)
SeaTalk^ng LEN (Load Equivalency Number)
1
SeaTalk^ng Power Out
3 Amp at 12V (fuse protected at 3 Amp)
Data Connections
SeaTalk^ng

Installation Environment

• Operating Temperature: -20C to +55C (-4F to +131F)
  
• Storage Temperature: -30C to +70C (-22F to +158F)
  
• Relative Humidity: MAX 93%

Waterproof rating
Drip resistant
Dimensions (W x H x D)
285mm x 211.5mm x 64.5mm (11.2 in x 8.3 in x 2.5 in)
Weight
2.2kg (4.84lbs)

Conformance

• Europe: 2004/108/EC
  
• Australia and New Zealand: C-Tick, Compliance Level 2

The Raymarine ACU-400 Actuator Control Unit (ACU) is designed for reliable and efficient autopilot drive control in maritime applications. This rugged unit provides continuous drive power up to 30 amps and supplies power to the SeaTalkng bus, ensuring seamless integration with your vessel's navigation system. Built to accommodate various steering system types, the ACU-400 is suitable for both hydraulic and mechanical drive mechanisms, making it a versatile choice for a range of marine autopilot installations. Its robust construction and waterproof, drip-resistant rating ensure dependable performance even in harsh marine environments. The ACU-400 supports a 12V or 24V power supply with an operating voltage range from 10.8V to 31.2V DC, offering flexible installation options. Power consumption in standby mode is minimal, at only 300mA for the main power supply and 20mA for SeaTalkng power, helping reduce energy use on your vessel. The unit includes essential connections such as power, drive motor, drive clutch, ground, and digital I/O, along with the M81105 Rotary Rudder Reference, facilitating straightforward integration into your existing system. Its compact dimensions and lightweight design make installation manageable without sacrificing durability or performance. The ACU-400 adheres to international standards, including European EMC and Australian C-Tick compliance, ensuring it meets rigorous safety and performance criteria. Engineered for marine environments with operating temperatures from -20°C to +55°C, it withstands extreme conditions while maintaining optimal functionality. Whether used in new installations or as a replacement for existing control units, the Raymarine ACU-400 offers a reliable solution for precise autopilot control in demanding marine settings.

Features:

• Maximum continuous drive current of 30 amps at supply voltage

• Supports up to 4 amps continuous drive clutch output at 12V or 24V

• Includes M81105 Rotary Rudder Reference for accurate steering feedback

• Multiple connection points for power, drive motor, clutch, ground, and digital I/O

• Supports 12V and 24V nominal supply with wide operating voltage range

• Minimal power consumption in standby mode for energy efficiency

• Waterproof and drip-resistant design for marine durability

• Compact dimensions suitable for various installation environments

• Conforms to European and Australian safety and EMI standards

• Operates reliably across a broad temperature range in harsh marine conditions