You are here: Home / Product / Other Underwater Components / Power Supply & Communication / FD-MODULE-FXXS-300 DC Overvoltage Discharge Module

FD-MODULE-FXXS-300 DC Overvoltage Discharge Module

DC Overvoltage Discharge Module
-FD-MODULE-FXXS-300

-DC overvoltage discharge module
-Real-time monitoring of power supply voltage; automatically activates discharge protection when voltage exceeds the preset threshold, dissipating energy through an external power resistor
-Adjustable overvoltage threshold
-Input Voltage: 300V

Quantity:
Availability:





Inquire Add to Basket

DC Overvoltage Discharge Module

FD-MODULE-FXXS-300

1、Product Overview

This product is a high-performance back-EMF (counter-electromotive force) absorption module designed for underwater thrusters driven by 300V brushless DC (BLDC) motors. When the thruster brakes urgently, rapidly reverses rotation, or is passively rotated by water flow impact, the motor generates counter-electromotive force, producing hazardous high-voltage spikes. This module responds instantly and absorbs this energy, keeping the system bus voltage within a safe range. It effectively protects your electronic speed controller (ESC), battery and other core electronic components from high-voltage breakdown, significantly improving the reliability and service life of the entire propulsion system.

2、Product specifications

Rated working voltage	300VDC
Discharge trigger voltage	350V (customizable according to the actual power supply used)
Response time	0.5us
Operating temperature range	-10℃ ～ +40℃
Main interface	XT60
Mounting method	The PCB is fixed using mounting holes; the resistor must be mounted flush against the wall for convenient heat dissipation.
Weight in air	100g
Applicable scope	1.This module is designed specifically to match all thruster products of our company with a working voltage of 300V (high voltage), ensuring optimal performance and best compatibility. 2.Important note: it is not recommended to use this module with non-our products or in mismatched voltage applications, otherwise effective protection may not be provided, or the module or other equipment may be damaged.