RotorStar ESCs are built with the highest quality components to ensure true-to-rating current handling and high efficiency operation.All RotorStar ESCs can be programmed via optional programing card or by transmitter stick inputs.Features:Powerful 5.5V/5A Switching BECOptional programming card for convenient setupSuper fine throttle resolution provides first-rate and highly accurate linearitySuper smooth adjustable start-up modeConstant RPM mode (governor mode)Adjustable F3A brake.3 steps adjustable normal EMF brakeHigh anti-interference capabilityLow voltage cut-off protection with automatic adjustment for NiCd/NiMH/Li-Ion/LiPo/LiFePO4Soft cut-off option at low voltage, slows motor RPM gradual rather than hard cutoff (LVC)Low voltage cut-off can be disabledVariable cut-off voltage / cellActive free-wheeling circuit allows for unlimited "partial load" capabilityLED status displayAdjustable motor timing from 0¡ã to 30¡ãBlocked rotation protection (senses a jammed motor and stops motor rotation)Motor reversing from ESC (no need to change ESC/motor wires)Over-temperature protection and overload alarmThrottle signal lose protection. If the signal is lost for 3 seconds, the power will automatically cut-off.Safe power-on. (Motor will not start until throttle is returned to lowest position)***This ESC is compatible with both helicopter and airplane models.***Specification:Max Cont Current: 40AMax Burst Current: 50A for 10 secondsInput Voltage: 2-6 cells li-XX or 6-16 Ni-MH/Ni-Cd batteryBEC: 5.5V/5A Switching BECPWM: 8~16 KHzMax RPM: 240,000rpm for 2 Poles Brushless MotorPCB Size: 50x25x12mmWeight: 43g (including wires)
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