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ORCA OE1 Mark II Competition 1S ESC

  • $94.52
  • Brands ORCA
  • Product Code: ORCES23OE11SM2
  • Availability: In Stock

ORCA OE1-1S Mark II Competition 1S ESC with Reverse Polarity ProtectionThe ORCA OE1-1S Mark II Competition ESC is a compact, high-performance electronic speed controller designed specifically for 1-cell LiPo RC racing applications. Built around a 32-bit processor and low-resistance FETs, it delivers strong current capability while giving racers extensive control over throttle, braking, timing, and..

This product has a minimum quantity of 2

High Performance 1S ESC with Reverse Polarity Protection


ORCA OE1-1S Mark II Competition 1S ESC with Reverse Polarity Protection


The ORCA OE1-1S Mark II Competition ESC is a compact, high-performance electronic speed controller designed specifically for 1-cell LiPo RC racing applications. Built around a 32-bit processor and low-resistance FETs, it delivers strong current capability while giving racers extensive control over throttle, braking, timing, and other performance parameters.


With built-in reverse polarity protection, internal capacitors, an 8A BEC, and support for sensored 540-size brushless motors, the OE1-1S Mark II is designed for serious competition where precise control and setup flexibility matter.


Key Features


  • Designed for 1S LiPo racing applications

  • High-performance brushless, sensored ESC

  • 32-bit processor for fast control processing

  • Low-resistance FET design

  • 760A peak current and 160A continuous current

  • 8A BEC with selectable 6V/7V output

  • Built-in reverse polarity protection

  • Integrated capacitors

  • Supports multiple programmable parameters

  • Compatible with the optional ORCA Program Card and Bluconn wireless module

  • Detachable on/off switch

  • Supplied with a 30mm cooling fan

  • Compact housing for 1/12-scale competition installations


Designed for 1S Racing


The OE1-1S Mark II is built around a 3.7–4.4V DC input, making it suitable for single-cell LiPo systems. Its high current capacity provides plenty of electrical headroom for demanding brushless racing setups while the compact form factor helps simplify installation in smaller chassis.


The ESC supports sensored 540-size brushless motors and has a motor limit specified as over 3.5 turns by ORCA's instruction manual and product information.


Extensive Tuning Capability


Racers can customize the ESC to suit different tracks, motors, and driving styles. With the optional ORCA programming equipment, adjustable parameters include throttle response, punch, timing, turbo timing, drag brake, brake characteristics, PWM, and throttle curve settings.


The OE1-1S Mark II also includes preloaded racing profiles, allowing users to configure the controller for different competition requirements without relying on a fixed factory setup.


Reverse Polarity Protection


A built-in polarity protection circuit helps protect the ESC if the battery connection is accidentally reversed. This is particularly useful in racing environments where batteries are frequently connected and disconnected between runs.


Always verify battery polarity and wiring before operation. ORCA specifies the red wire for positive and black for negative connections.


Powerful BEC and Cooling


The integrated BEC is rated at 8A and supports 6V/7V output, providing power for the receiver and connected electronics.


A 30mm cooling fan is included with the ESC to help manage operating temperatures during demanding racing sessions. The fan and internal capacitor arrangement are part of the supplied competition-oriented configuration.


Compact Competition Design


Measuring only 30.54 × 34 × 13.75 mm and weighing approximately 29.3g excluding wires, the OE1-1S Mark II is designed to fit compact racing chassis where space and weight are important considerations.


Product Specifications


SpecificationDetails
ProductORCA OE1-1S Mark II Competition ESC
ESC TypeBrushless electronic speed controller
Battery Configuration1S LiPo
Input VoltageDC 3.7–4.4V
Processor32-bit
FETLow-resistance FET
Peak Current760A
Continuous Current160A
BEC8A, 6V / 7V
Motor TypeSensored 540-size brushless
Motor LimitOver 3.5 turns
Forward / Brake / ReverseYes
Factory ModeForward / Brake
Internal CapacitorYes
Reverse Polarity ProtectionYes
Dimensions30.54 × 34 × 13.75 mm
Weight29.3g, excluding wires
Cooling30mm fan
ProgrammingOptional ORCA Program Card or Bluconn module
On/Off SwitchDetachable
ApplicationCompetition RC racing


Specifications are based on ORCA's current product information and OE1-1S Mark II instruction manual.


What’s Included


  • ORCA OE1-1S Mark II Competition ESC

  • 13 AWG power wire

  • 30mm cooling fan

  • Detachable on/off switch

  • 200mm detachable BEC wire

  • ORCA decals


The ORCA Program Card and Bluconn wireless module are optional accessories and are not included as standard.


Recommended Applications


The OE1-1S Mark II is well suited for:


  • 1S competition RC racing

  • 1/12-scale racing platforms

  • High-performance sensored brushless systems

  • On-road racing applications

  • Drivers who require detailed ESC tuning

  • Racing setups where compact size and low weight are important


Why Choose the ORCA OE1-1S Mark II?


The OE1-1S Mark II combines a compact competition-focused design with high current capability and extensive tuning options. Its 1S-specific electrical range, 8A BEC, reverse polarity protection, integrated capacitors, and programmable performance settings make it a strong choice for racers looking for greater control over their ESC setup.


For drivers who regularly fine-tune their electronics to match different motors, tracks, and driving conditions, the OE1-1S Mark II provides the adjustment range needed to build a more personalized racing setup.

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