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ST-15 Single Point Overfill Prevention Controller
ST-15C Single Point Overfill Prevention Controller.png

ST-15 Single Point Overfill Prevention Controller

Brand: Scully Signal Company
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The Scully single point overfill prevention controllers feature two-wire optic or thermistor sensing. They are mounted at a loading rack or fill station for connection to a single compartment tank vehicle. 

The ST-15 provides the vehicle with an adequate static ground path to the rack provided the vehicle overfill equipment is wired and maintained to factory specifications. 

For additional ground proving options, the system works in conjunction with the Scully Groundhog Self-Proving Ground Verification System.
Features
  • Maximum safety with Dynacheck® automatic and continuous self-checking circuitry
  • Will not permit loading under any fault or wet sensor conditions
  • Signals for automatic shut-off of product flow within a half-second of detecting an overfill condition
  • Ideal overfill prevention for refuelers, rail tank cars, tank trucks, chemical trailers and other one compartment vehicles
  • 30 years of proven, dependable performance
  • Easy connection to vehicles with versatile high impact plug and cable units
  • Approved by Factory Mutual

1 - 6 of 6 Part Numbers
07528
07528
ST-15-115-EL Single Point Controller with Explosion-proof Housing and Indicator Lamps, 115 VAC
07547
07547
ST-15-240-ELK Single Point Controller with Explosion-proof Housing, Indicator Lamps, Lockable Bypass Switch, 240 VAC
07640
07640
ST-15-240-EL Single Point Controller with Explosion-proof Housing and Indicator Lamps, 240 VAC
07677
07677
ST-15-115-ELK Single Point Controller with Explosion-proof Housing, Indicator Lamps, Lockable Bypass Switch, 115 VAC
08656
08656
Replacement Parts - 240 VAC Control circuit module only, ST-15-240H
08756
08756
Replacement Parts - 115 VAC Control circuit module only, ST-15-115H
1 - 6 of 6 Part Numbers

Specifications

Brand

Thermistor Sensors

  • SP-BL, SP-BLU, SP-BLH Two-wire Optic Sensors SP-TO, SP-TOM, SP-IO, SP-IR, SP-TO(SS), SP-TO(SS)HP

Certifications & Approvals

  • FM
  • CSA

Response Time

  • Turn-on: 6 to 30 s
  • Shut-down: 0.5 s Max.

Power Requirement

  • 105-130 Vac, 50/60 Hz, 20 W Max.
  • 210-250 Vac, 50/60 Hz, 20 W Max.

Connection

  • Provided by Internal Terminal Strips

Output Control

  • One Normally Open Volt Free Contact, Rated 250 Vac 5 A Resistive
  • Energized When the Sensor Is Dry

Output Control Fuse

  • Internal 5 A

Enclosure

  • Explosion-proof, Weathertight
  • Corrosion Inhibiting Epoxy Paint Optional

Indicator Lamp

  • Red = Power-On/Non-Permit
  • Green = Permit

Weight

  • 28 lb (12.7 kg) EL & ELK Units

Documentation

Data Sheets

Brand-Managed Distributed Enterprise Catalogs (DEC)
for Authorized Channel Partners
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