NSI Industries SR-500 Safety Vacuum Release System

Product Description

The NSI Industries SR-500 Safety Vacuum Release System is designed for monitoring vacuum levels on the suction side of pool or spa pumps. This system activates when it detects a blockage in the main drain or skimmer, immediately stopping pump operation and sounding an alarm. The alarm will continue until a manual reset is conducted, ensuring safety in swimming pools, spas, fountains, and ponds of any pump size.

• Features a power outage backup to maintain operation through electrical interruptions.
• Includes a maintenance override for easy servicing and testing.
• Equipped with built-in diagnostics to keep track of system performance.

Product Highlights

This system is housed in a NEMA 3R enclosure with a locking hasp, suitable for secure installations. It operates at a frequency of sixty hertz and carries CSA and ARL listings, making it a reliable choice for safety in aquatic environments.

Product Information

Standard Information

• Brand Name: NSI
• Application: Swimming Pools, Spas, Fountains, Ponds

Technical Specifications

• Electrical Category: Control And Automation
• Electrical Subcategory: Controls And Accessories
• Electrical Subtype: Timer Controls
• Size: Length=3.750 inches, Width=5.500 inches, Height=9.375 inches
• Action: DPST
• Contact Configuration: DPST
• Contact Rating: 120/240 VAC
• Country Of Origin: USA
• Enclosure: NEMA 3R with Locking Hasp
• Mounting: Screw Mount
• Number Of Poles: 2
• Phase: Single Phase
• Standard: CSA & ARL Listed
• Weight: 4.450 L
• Type: Stingl Safety Vacuum Release
• UNSPSC: 39121523