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Raymarine EV-100 Wheel T70152 connections
Review the Raymarine EV-100 Wheel T70152 connections, setup and installation requirements. This overview does not calculate cable or protection sizes.
- Nominal voltage
- 12 V
- Compatible systems
- 12 V
Connection overview
EV-100 Wheel connections.
See how this component fits into a system. Use the manufacturer’s installation instructions for the complete connections.
Installation notes
Before you install.
Open a question for model-specific guidance and sources.
Verified against the manufacturer's documentation (rev. Evolution installation 87180 Rev 7, 07/2024; EV-1 installation 87472 Rev 2), checked 2026-10-01. Manufacturer documentation →
What the T70152 pack contains
T70152 is the EV-100 complete wheel-pilot pack with an EV-1 sensor, ACU-100 actuator controller, wheel drive and p70s control head. Other pack numbers omit the controller or drive. Raymarine rates this wheel system for suitable sailboats up to 7,500 kg fully laden displacement; steering condition and installation geometry remain part of choosing the drive.
Two powered circuits are required
The ACU-100 is a 12 V unit, with a 10.8–15.6 V operating range. Protect its supply with the manufacturer's 10 A inline fuse or 10 A thermal breaker. Its internal 10 A blade fuse does not replace protection for the cable from the distribution panel. Connect the specified power and ground conductors, then the separate motor output and network spur according to the ACU diagram.
ACU-100 does not power SeaTalk NG. The backbone feeding the EV-1 and control head needs its own single 12 V supply, specified as a 5 A inline fuse or 3 A thermal breaker in the network instructions. Do not add a second feed to an already powered backbone without a designed network power arrangement.
Size power and drive cables together
For a sailboat wheel drive, Raymarine's table uses A+B: the power-panel-to-ACU run plus the ACU-to-drive run. It specifies at least 2.5 mm² up to 3 m combined length, 4 mm² up to 5 m, 6 mm² up to 7 m, 10 mm² up to 10 m and 16 mm² up to 16 m. A generic calculator that sees only the first leg misses the drive-cable voltage drop.
The catalog symbol reserves the ACU supply; it is not a complete autopilot harness. The 7 A figure is the ACU's continuous drive-output capability, while 300 mA is ACU standby alone. Neither is the kit's normal steering consumption. Average draw and surge remain unset until an installation-specific budget is available; the terminal limit is the protection-based planning bound.
Mount and commission the steering system
Mount the EV-1 in the correct vessel orientation and away from magnetic interference. Keep the ACU's connector area protected and provide access for inspection. Follow the wheel-drive instructions for its support, belt, clutch and clearances; electrical commissioning cannot compensate for binding steering.
Check manual steering and clutch release before engaging the pilot. Complete the supported dockside setup, verifying rudder direction and limits, then perform the controller's required on-water checks in open water with a competent operator ready to regain manual control. Unexpected steering calls for standby and investigation of direction, sensor alignment or mechanical load, not a larger fuse.
Manuals and evidence
87180 Rev 7 manufacturer manual, distributor mirror, pp. 59–67 and 106, covers ACU wiring, protection, combined lengths and ratings. Current EV-1 instructions cover sensor/network installation; T70152 pack page confirms contents. Both installation PDFs are retained locally. Detailed wheel-drive mechanical and p70s operating procedures remain in their separate manuals.
Technical reference
Specifications and terminal map.
Check the model, ratings and connection points against your own unit before choosing installation hardware.
Catalog specification
12 V kit with EV-1 sensor, ACU-100, wheel drive and pilot controller. Symbol represents the ACU supply only; SeaTalk NG needs its own fused 12 V feed. The 7 A drive-output capability and 10 A supply fuse are not average kit draw. No consumption estimate is assigned; terminal values are a 10 A protected-circuit planning bound.
- Nominal voltage
- 12 V
- Compatible systems
- 12 V
Terminal map
Catalog connection points, current direction and planning limits. Check the manufacturer's pinout and connector ratings before installation.
ACU supply +
positive · input
−
negative · input
Sources and sizing method
Equipment specifications. Model details, ratings and terminal roles come from the catalog. Check your unit’s label and current manufacturer documentation for its exact revision.
Connection overview. This diagram explains the connection arrangement; it does not calculate cable sizes or protection for the installation. Follow the manufacturer’s complete wiring and protection instructions.
Read how the sizing worksNext step
Plan your installation with EV-100 Wheel.
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