Load Manager P

The Load Manager P is a precision low-voltage disconnect and timed load management controller designed to protect vehicle batteries from excessive discharge. This device is specifically engineered for use in fire apparatus, ambulances, police vehicles, command vehicles, and other emergency and specialty vehicles where maintaining power to critical electrical systems is essential even after the engine has been turned off. The Load Manager P allows radios, computers, and other auxiliary equipment to remain powered for a short period of time following engine shutdown while automatically disconnecting the load before the battery becomes overly discharged.

The Load Manager P controls one electrical load through a heavy-duty 30-amp relay and integrates voltage monitoring with an internal shutdown timer. Once the engine is stopped, connected equipment can stay powered for up to two hours, enabling operators to continue using radios or computers without having to keep the engine running. The standard set point disconnects the load after approximately one hour or when battery voltage reaches a predetermined low-voltage threshold. This feature ensures that critical systems are not left operating unnecessarily, which could lead to battery drain.

A starter override input provides starter inhibit protection, preventing temporary voltage drops during engine cranking from causing the connected load to be disconnected. This is especially important during vehicle starting, as it helps avoid unnecessary computer reboots and equipment shutdowns that can occur if the load is shed prematurely. The Load Manager P's automatic operation ensures that battery discharge is minimized while still allowing for temporary accessory use after engine shutdown, making it a reliable solution for maintaining electrical systems in emergency vehicles.

Features

• Combines low-voltage battery protection and timed load shutdown in one compact controller
• Automatically manages and sheds one electrical load
• Designed for 12 VDC vehicle electrical systems
• Ideal for radios, computers, and other auxiliary vehicle electrical equipment
• Allows connected equipment to remain powered after engine shutdown
• Integrated timer provides a load shed time from 1 to 2 hours
• Standard timer set point provides approximately 1 hour of operation after engine shutdown
• Low-voltage disconnect helps prevent excessive and inadvertent battery discharge
• Load shed voltage range from 11 to 12.85 volts
• Heavy-duty 30-amp relay provides dependable load control
• Automatically disconnects the load when the timed interval expires or low-voltage conditions are detected
• Starter inhibit protection prevents load shedding during engine cranking
• Helps prevent unnecessary computer reboots and equipment shutdowns during vehicle starting
• Automatic operation reduces the risk of battery discharge caused by equipment being left ON
• Compact design simplifies installation in emergency and specialty vehicles
• Ideal for fire apparatus, ambulances, police vehicles, command vehicles, and specialty vehicle electrical systems
• Backed by a 3-year manufacturer's warranty

Specifications

• Manufacturer: Kussmaul Electronics
• Product Type: Timed Low-Voltage Load Management Controller
• Model: Load Manager P
• Product Code: 091-141
• Load Management: Yes
• Timer: Yes
• Input Voltage: 12 VDC
• Number of Loads: 1
• Relay Contact Rating: 30 Amps
• Load Shed Time: 1 to 2 Hours
• Load Shed Voltage Range: 11 to 12.85 Volts
• Standard Set Point: 11 Volts and 1 Hour
• Current Draw – Relay ON: 0.090 Amps
• Current Draw – Relay OFF: 0.009 Amps
• Starter Inhibit: Prevents Load Shedding Due to Temporary Low Voltage During Engine Cranking
• Low-Voltage Disconnect: Yes
• Automatic Battery Discharge Protection: Yes
• Weight: 0.25 lbs.
• Warranty: 3-Year Manufacturer's Warranty

Availability and lead time are subject to confirmation.