Dometic Seastar
Dometic SeaStar AC7700 Actuator for i7700 Engine Controls
- SKU:
- AC7700
- Condition:
- New
Description
SeaStar AC7700 Actuator (Dometic i7700)
12V electronic shift and throttle actuator for engines that use mechanical control cables. The AC7700 receives SeaStar i7700 (i7X00) CAN2 commands and moves standard push-pull cables at the engine.
Quick facts: Part: AC7700 - SKU 9130000333 - 1 actuator per engine - CAN2 250 kbps - Inboard, I-O, and Outboard applications.
Why buy
- Combined shift and throttle actuation in one housing
- Dual redundant position sensing for confident operation
- Neutral-start protection (NSP) and emergency override for get-home capability
- Built for marine environments: IPX7, ignition-protected, 300-hour salt spray
- Designed to meet ABYC/CE/ISO/SAE and EN60945 marine electronics requirements
Key specifications
| Item | Value |
|---|---|
| Power | 12 VDC |
| Travel | Up to 3.14 in (80 mm), programmable |
| Max load | 135 lb (600 N) |
| Max speed | 4.72 in/s (120 mm/s) |
| Dimensions (L x W x H) | 12.20 x 8.30 x 5.40 in (310 x 211 x 137 mm) |
| Weight | 20 lb (9.07 kg) |
| Operating temp | -18 to +77 C |
| Storage temp | -40 to +85 C |
What you need (sold separately)
- SeaStar i7700 control head(s) and CAN2 network parts (tees, harness, and two terminators)
- EPSK1207 setup tool (required to configure and calibrate)
- Control cables: SeaStar Xtreme CCX633xx recommended (maintain at least an 8 inch bend radius)
- 12V supply on a dedicated 20A breaker or fuse
Important network note
Do not connect CAN2 directly to a public NMEA 2000 backbone. Use only approved gateways and wiring methods shown in SeaStar documentation.
Installation tips
- Mount where the emergency override remains accessible.
- Confirm smooth linkage travel and cable routing before commissioning.
- Complete dockside setup and a controlled sea trial after calibration.
Maintenance guidelines
- Periodically inspect cables, linkages, and wiring for corrosion, binding, or chafe.
- If control effort increases, address cables and linkages first.
FAQ
What does the AC7700 do?
Turns CAN2 commands into motion of the shift and throttle cables near the engine.
Is AC7700 the same as the i7700 actuator?
Yes - AC7700 is the universal i7700 actuator model.
Will it work with my engine?
Designed for mechanical shift and throttle engines; confirm travel, cable routing, and mounting space.
How many actuators do I need?
One per engine.
Can I add a second helm or tower?
Yes - i7700 supports up to 3 stations with the proper harnessing.
Do I need a setup tool?
Yes - EPSK1207 is required to configure the system.
Can I reuse my existing control cables?
Sometimes, but CCX633xx Xtreme cables are recommended; avoid tight bends.
Does the actuator come with tees, terminators, or harness?
Often included in system kits; plan on sourcing CAN2 parts if buying the actuator alone.
Is there a manual backup?
Emergency override/get-home feature - keep the cover accessible.
What if batteries get low or power is lost?
It needs solid 12V power - use proper wiring, protection, and battery management.
Is there lag vs mechanical?
Typically very responsive; binding cables/linkages or poor setup can cause issues.
Can I plug CAN2 into NMEA 2000 since the connectors fit?
No - CAN2 is not NMEA 2000 compliant; don't connect to a public N2K backbone.
Is it waterproof?
IPX7 rated, but mount as dry as practical.
Does it support single and twin engines?
Yes - use one actuator per engine.
Is this true engine fly-by-wire?
No - AC7700 is electronic at the helm but still drives mechanical engine cables.
What cables should I order?
SeaStar Xtreme CCX633xx series is recommended (min 8 inch bend radius).
Do I need neutral safety/start-in-gear protection?
Integrated NSP switch is included; wire and test per the manual.
My controls are stiff - will this fix it?
It helps, but the engine-side cables/linkages must still move freely.
Can I retrofit electronic controls on mechanical engines?
Yes - built for mechanical shift and throttle engines.
Is it worth it vs replacing worn cables?
New cables help single-station feel; AC7700 helps most on multi-station/tower installs.
Does Command Link (or similar) mean I already have digital controls?
No - engine data networks are not digital throttle and shift.
Do I have to put the boat in neutral to switch stations?
Use the i7700 take-control procedure so only one helm is active.
Can I connect third-party devices to the CAN2 network?
No - connect only SeaStar components to CAN2.
Does the system support trolling mode or throttle curves?
Yes - set during setup.
Questions?
Tech Support | Stock Inquiry | Shipping Quote
Note: Professional installation and sea trial required. Verify compatibility before ordering.
No sales tax outside Florida where applicable - ask about financing options. Seatech Marine Products, Inc. is an authorized SeaStar dealer, service center and installer.
Warranty Information
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