Castle Creations Hydra Cobra 5 HV Marine-Grade, 12S High-Voltage ESC 010-0183-00

HYDRA COBRA 5 HV - MARINE-GRADE, 12S HIGH-VOLTAGE ESC
Push your boat to its limits. The Castle Hydra Cobra 5 HV is a next-generation marine ESC designed for RC hobby boats up to 50 inches. Built on the same proven technology as the Cobra 5 HV surface ESC and re-engineered for water, it delivers uncompromising 12S / 50.4 V power, data-rich performance monitoring, and bulletproof protection.

KEY FEATURES:
32-Bit processing power for smoother motor control and improved response time.
Enhanced Data Logging includes:
Double the maximum sample frequency of older generations.
8x increased logging time of older generations.
ESC electrical motor timing data.
Acceleration data via onboard accelerometer.
Looping feature prevents interruptions in data log recording.
Additional tuning features include:
Limp Mode makes return to shore easier when low voltage cutoff is activated.
Highly adjustable internal BEC (5.0V - 8.5V adjustable in 0.1V increments)
Access to tuning options and firmware updates for free with Castle Link V4 USB programmer included with purchase or the Castle Link 2 App and a B-Link 2 Bluetooth Interface. 
Upgraded current-sensing and thermal protection system actively mitigates the risk of failure in aggressive or high-load setups. 

PURCHASE INCLUDES:
Hydra Cobra 5 HV ESC
Cobra decals
Castle Link V4 USB Adapter
Cobra Quick Start Guide

ADDITIONAL FEATURES:
CRYO-DRIVE™ Technology minimizes the amount of time the ESC’s electrical components spend generating heat, resulting in improved thermal performance during partial throttle operation where most driving occurs
Wirelessly optimize your setup with the convenience of the new B-Link2™ Bluetooth™ Interface  and Castle Link 2 app for Android or iOS.
ESC is housed in a rugged CNC aluminum case and potted in waterproof epoxy to protect the electronics and promote efficient heat transfer.
Machined water-cooled heatsink with 0.17" water fittings.
Auxiliary wire functionality for "on-the-fly" adjustments using your transmitter
Audible alerts for easy diagnosis of common issues such as motor-over-temperature and low-voltage cutoff
Convenient transmitter programming for six common adjustable settings including cutoff voltage and drag brake

Technical Specs
Application Guidelines:
RC Hobby boats up to 50"
Input Voltage Range:
MIN: 6S LiPo, MAX: 12S LiPo 33.6V
Running Modes:
Sensorless, Brushed and SmartSense™ when paired with a Castle 4-Pole Sensored Motor.
Brake: Available, but disabled by default.
Reversible: Available, but disabled by default.
On/Off Switch: Yes, waterproof
Water cooling fittings
Two .17" fittings included. Uses 10-32 UNF threads.
Size (L x W x H): 4.72" x 1.46" x 2.64" (120mm x 37.2mm x 67mm)
Weight (with wires): 18.1oz (513g)
Continuous current rating*: (SEE NOTE BELOW)
180A
Burst current rating*: (SEE NOTE BELOW)
350A
Motor Connectors:
8mm female bullets on circuit board, matching 8mm male bullets for motor required (not included)
Items Needed for Operation: The Hydra Cobra 5 HV requires the use of connectors designed for 150+ amps continuous, such as Castle 6.5mm polarized or CC BULLET 8.0MM, QS8 8mm Anti Spark or QS10 10mm Anti Spark. You will also need 8mm male bullets for the motor connections.
Operating environment:
Waterproof design for all weather conditions
Programmability:
Access to tuning options and firmware updates for free with Castle Link V4 USB adapter included with purchase. Now with USB-C connector! (Requires Windows 10 or higher) or the Castle Link 2 App and a B-Link2 Bluetooth Interface. 
Tech Tips:
The Hydra Cobra HV has mounting holes located on the bottom of aluminum case for installation into vehicle, download template here.

If replacing the water-cooling fittings, it is recommended to use Loctite® 545 (or similar) on the threads. This will ensure a watertight, 25+ PSI strong seal.