Potter Electric Signal VSR-3

Potter Electric Signal VSR-3 Vane-Type Waterflow Alarm Switch

Key Features

• Vane-type waterflow detector for wet pipe sprinkler systems
• Dual single-pole, double-throw (SPDT) switch contacts for supervisory signaling
• Adjustable, instantly recycling pneumatic retard mechanism
• Actuates at 10 GPM (38 LPM) or greater flow downstream
• Rated for pressures up to 450 psi with maximum water surges of 18 fps
• Separate wiring chambers and conduit entrances per NEC requirements

Technical Specifications

• Pipe Size: 3" nominal (Schedule 10-40 steel pipe)
• Flow Activation: 10 GPM or greater
• Pressure Rating: Up to 450 psi
• Switch Contacts: 10A at 125VAC, 2A at 30VDC
• Contact Type: Two SPDT with snap action
• Maximum Water Surge: 18 fps

Certifications

• UL Listed for wet sprinkler systems
• FM Approved
• Listed for fire sprinkler system supervision