Franklin Fueling Systems STP-DHI Dispenser Hook Isolation Device

The STP-DHI device prevents electrical feedback between dispenser hook circuits during periods of maintenance and service as required by NEC 514-6, 1999 and other international codes.

DHI models are compatible with submersible pump controllers that accept 120 Volt dispenser hook signal. This model can also be connected together for products with more than eight dispenser handle inputs.

Features

• Optically isolates inputs from up to eight dispensers preventing damage to dispenser relay boards caused by cross-phasing
• Can be supplied factory-wired in tandem with the FE Petro Smart Controller or the FE Petro standard control box
• Eliminates false STP run due to voltage leakage of multiple dispensers connected in parallel
• Fuse-protected output to submersible pump controller
• The STP-DHI can retrofit to any existing site

Specifications

• Enclosure size: 8½" x 5" x 3" (215 mm x 127 mm x 76 mm)
• Eight optically isolated inputs from dispenser
• One STP-DHI required per product grade for up to eight dispensers
• STP-DHI: 120 V 30 V A input from supply, eight 120 V 10mA inputs from dispensers
• Output fuse rating: 250 V 1A, fast-acting
• 300 Volt surge protection
• Maximum ambient temperature rating: 120 °F
• LEDs indicate when source power is applied and dispenser hook signals are present
• Compatible with any submersible pump controller
• Franklin Fueling Systems is an ISO 9001 Certified Manufacturer

Download

Product Installation & Owners Manual (PDF Download)