Zoeller Back Up Battery Sump System, 900 GPH

Product Overview

The Zoeller Basement Sentry 507 Battery Backup Pump System (Model 507-0005, Part #129935) is an automatic 12 VDC backup sump pump engineered for use in residential and light commercial dewatering systems. Designed to activate when the primary AC pump is inoperative or overloaded, the system provides continued water removal during electrical outages, mechanical failure, or excessive inflow conditions. The assembly integrates a high-performance DC pump, automatic control module, and battery interface for reliable auxiliary operation.

Technical Specifications

• Manufacturer: Zoeller Company
• Series: Basement Sentry 507
• Model Number: 507-0005
• Part Number: 129935
• System Type: Battery Backup Sump Pump (Automatic)
• Power Supply: 12 VDC
• Current Draw: 10 Amps (Nominal)
• Pump Type: Submersible backup pump with integrated float switch
• Maximum Flow Rate: 23 GPM (at 10 ft head)
• Maximum Head: 17.5 feet
• Discharge Size: 1-1/2 inch NPT
• Primary Function: Automatic activation upon primary AC pump failure or excessive water inflow
• Control Module: Solid-state charger and automatic transfer controller with LED status indicators
• Battery Type: 12 V deep cycle (supplied or compatible lead-acid battery)
• Construction: Corrosion-resistant housing suitable for continuous submersion
• Electrical Frequency: 60 Hz (for charging circuit)
• Operating Environment: Indoor sump pit installation; ambient temperature as per manufacturer’s guidelines
• Backup Runtime: Dependent on battery capacity and cycle conditions
• Compliance: UL listed system components; conforms to applicable residential pump standards

Application Notes

The Zoeller 507 Basement Sentry system is designed to automatically engage when the main AC-powered sump pump ceases operation due to power loss, mechanical malfunction, or flow overload. The integrated control module continuously monitors battery charge and system status, switching to DC operation as required. The pump delivers 23 GPM at 10 feet of head and maintains discharge through a 1-1/2 inch line. The 507 system is field-configured for easy integration into existing sump pits and is compatible with standard discharge plumbing assemblies. Professional installation is recommended to ensure proper float positioning, check valve configuration, and electrical protection per local code requirements.

Summary

The Zoeller Basement Sentry 507-0005 (Part #129935) is a 12 VDC automatic battery backup sump pump rated at 23 GPM with a 17.5-foot maximum head. Designed for dependable operation during primary pump or power failure, it provides consistent sump protection and seamless transition between AC and DC power in residential and light commercial applications.