Dispenser Hook Isolation

Dispenser Hook Isolation

The dispenser hook isolation device prevents electrical feedback between dispenser hook circuits as required by most electrical codes.

DHI Box - Highlight.psd

DISPENSER RELAY BOARD PROTECTION

  • Optically isolates inputs from up to eight dispensers preventing damage to dispenser relay boards caused by cross-phasing.
  • Prevents electrical feedback between dispenser hook circuits during periods of maintenance and service as required by NEC 514-3, 2002 and other international codes.
  • Can be supplied factory-wired in tandem with a smart controller or 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/STP-DHIB can retrofit to any existing site.

General

  • Enclosure size: 8½" x 5" x 3" (215 mm x 127 mm x 76 mm).
  • Eight optically isolated inputs from dispenser.
  • One STP-DHI/STP-DHIB 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.
  • STP-DHIB: 240 V 30 V A input from supply, eight 240 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.

Approvals/Certifications

  • Consult factory for applicable approvals.
  • Franklin Fueling Systems is an ISO 9001 Certified Manufacturer.

STP-DHI

Item Number Long Description
402312931 STP-DHI + SPGC-220 Guardian Series™ Single-Phase Controller bundle (220 Volt supply, 110 Volt hook)
5800300100 STP-DHI, dispenser hook isolation for 110 Volt dispenser handle switches, up to eight each
  • DHI models are compatible with FE Petro submersible pump controllers and competitive pump controller makes accepting 120 Volt dispenser hook signal.
  • DHI models can be connected together for products with more than eight dispenser handle inputs.
  • When purchasing STP-DHI-SCI in equal quantities of fixed speed 4" STPs, the STP-DHI-SCI will be invoiced at special discount pricing.

 

STP-DHIB

Item Number Long Description
402312932 STP-DHIB + SPGC-220 Guardian Series™ Single-Phase Controller bundle (220 Volt supply, 240 Volt hook)
5800300200 STP-DHIB, dispenser hook isolation for 240 Volt dispenser handle switches, up to eight each
  • DHIB models are compatible with FE Petro submersible pump controllers and competitive pump controller makes accepting 240 Volt dispenser hook signal.
  • DHIB models can be connected together for products with more than eight dispenser handle inputs.

DHI Repair Parts and Accessories

Item Number Long Description
223243103 DHI fast-acting fuse, 250 VAC, 1 Amp
223885901 DHI circuit board, 120 Volt dispenser hook signal

DHIB Repair Parts and Accessories

Item Number Long Description
223243103 DHI fast-acting fuse, 250 VAC, 1 Amp
223885931 DHIB circuit board, 240 Volt dispenser hook signal

Drawings

Title Type Size
CD_SPS_STP-DHIB_001.pdf PDF 0.14 MB
CD_SPS_STP-DHIB_001.dwg DWG 0.39 MB
CD_SPS_STP-DHI_001.pdf PDF 0.14 MB
CD_SPS_STP-DHI_001.dwg DWG 0.39 MB