Overview

The Protect+ is an advanced DC power protection module that guards equipment against voltage spikes, voltage drops, overcurrent, reverse current, and reverse wiring, helping to prevent costly damage. It supports up to 28 A continuous with an input range of 7 to 60 V, with independently adjustable overcurrent, overvoltage, undervoltage, and undervoltage hysteresis thresholds.

Under and overvoltage events trigger a temporary shutdown, with power automatically restored once conditions normalize. Overcurrent events latch the module off until you reset it electronically or manually, giving you full control before power returns.

Built entirely in hardware with no microcontroller, the Protect+ is designed for robotics projects, radio setups, automation equipment and other sensitive electronics. If you only need overvoltage protection over a 5 to 30 V range, check out the original Protect Module.

Features:

• Adjustable Over & Under Voltage Protection (7–60 V): Set independent cutoff thresholds for both high and low voltage events. When input voltage exceeds or drops below the configured limits, Protect+ automatically disconnects the load and restores power once conditions normalize.

• Adjustable UVLO Hysteresis (0.9–5.2 V): Dial in the right amount of undervoltage hysteresis to account for cable voltage drop, which is especially important with long or thin wires at high currents. Prevents unwanted chatter and power blips during recovery.

• Latch-Off Overcurrent Protection: Adjustable current cutoff selectable from 2, 5, 10, 20, 30 A or No OCP with ±5% typical accuracy and a ~50 ms response time. On an overcurrent event, the module latches off and waits for a manual or electronic reset, giving you full control before power is restored.

• Reverse Polarity & Reverse Current Protection: Ideal diode functionality blocks reverse current flow with minimal voltage drop, protecting against incorrect wiring and enabling safe paralleling of power supplies, batteries, or solar panels (power ORing).

• Soft-Start Power-On: Output voltage ramps gradually at approximately 0.2 V/ms after the UVLO threshold is cleared, protecting against inrush and ensuring the protection thresholds are evaluated before full voltage is applied.

• 40 A Series Fuse: A secondary layer of hardware protection on-board, guarding against conditions that could cause the pass MOSFETs to fail.

• Power Switch Capability: Use a low-current mechanical or digital switch via the Sleep input to toggle high-power loads. No bulky high-current switches required.

• Opto-isolated Fault Output & Sleep Input: Optional isolated open-collector fault signal for system diagnostics, alerts, or automated shutdown logic. Isolated sleep input allows external control of the module’s on/off state.

• Compact & Mountable: 68 x 44 mm PCB with M2 mounting holes and XT60 connectors (with mating pair and heat shrink included) for easy installation.

Further Questions? See Datasheet.

Ships next business day if in-stock, through Canada's Postal service or UPS. Alternate shipping carriers available upon request.