REC BMS Pre-Charge Delay V3.0

SKU: Unassigned

Whether you’re working with 12V, 24V, 48V, or even higher voltage systems, the REC BMS Pre-Charge Delay unit is the ideal solution to tackle inrush currents effectively. Experience a smoother power-up procedure, protect your system components, and enhance the lifespan of your valuable equipment. 


  • Input Voltage: 11-80V
  • Compatible Systems: 12V, 24V, 36V, and 48V
  • Installer-Adjustable Delay: 2, 4, or 8 seconds (Default: 4 seconds)
  • Compatible with any relay/contactor
  • Supports single pole or bi-stable latching contactors
  • Top Side Coil Drive: 6.0A with over-current and reverse polarity protection
  • Low power consumption
  • Integrated Resistors: 15Ω and 30Ω power resistors + 10Ω NTC
  • Pre-Charge Capability: Up to 120V, 4.0A pre-charge
  • Reverse Polarity Protection
  • Over-Voltage Protection

Out of stock


Eliminate Inrush Currents with the REC BMS Pre-Charge Delay 

Are you tired of dealing with high inrush currents that can potentially damage your system components during power-up? Look no further! the REC BMS Pre-Charge Delay is the perfect solution to eliminate those troublesome inrush currents and protect your valuable equipment. Designed for high input capacitance systems such as inverters, DC-DC converters, and more, this pre-charge unit ensures a smooth and safe power-up procedure, extending the lifespan of your system components dramatically.

Efficient Inrush Current Elimination

The REC BMS Pre-Charge Delay is specifically engineered to tackle the challenges posed by high inrush currents during initial power-up. With its advanced technology, it charges the input capacitors of your system components before the main contactor switches on. By gradually introducing power, this unit effectively eliminates the risk of overwhelming inrush currents, preventing stress and potential damage to your components.

Wide Compatibility & Integration 

The REC BMS Pre-Charge Delay supports input voltages ranging from 11V to 80V, making it compatible with 12V, 24V, 36V, and 48V systems. It is also compatible with any relay or contactor, ensuring a hassle-free installation process. It supports both single pole and bi-stable latching contactors, providing flexibility for diverse system configurations.

Installer-Adjustable Delay

Tailor the delay time to suit your specific requirements. The unit allows you to adjust the delay from 2, 4, or 8 seconds, with the default setting being a reliable 4-second delay.

Integrated Protection

With a 6.0A top-side coil drive and integrated 15 and 30 Ω power resistor, along with a 10 Ω NTC, the REC BMS Pre-Charge Delay offers comprehensive protection for your system. It features over-current protection, reverse polarity protection, and over-voltage protection, safeguarding your components from potential risks.

Recommended Accessories:

Additional information

Weight .75 lbs


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