Custom industrial DC choke and Schottky diode module manufactured as part of an ELME Automatika industrial machine electrical system.

The internal PCB is marked ELME and incorporates a large 800 µH power inductor together with an SBL3040PT dual common-cathode Schottky rectifier. The module is housed in a DIN-rail mountable enclosure and provides two-pole removable screw-terminal connections at both ends.

The combination of the series power inductor and high-current Schottky rectifier indicates that this is a passive power-conditioning module intended for filtering, current smoothing and/or suppression within a DC power circuit. It is not a thermostat or conventional enclosure fan controller.

ELME Automatika is a Hungarian industrial automation engineering company specializing in custom machinery, test equipment, assembly lines and control systems. This module appears to be an ELME custom-designed machine component rather than a standard catalog product.

Confirmed technical details:

• Manufacturer / PCB marking: ELME
• Manufacturer associated with machine: ELME Automatika
• Type: Custom DC choke / diode filter module
• Inductance: 800 µH
• Rectifier: SBL3040PT
• Rectifier type: Dual common-cathode Schottky rectifier
• SBL3040PT average forward current rating: 30 A
• SBL3040PT maximum repetitive reverse voltage: 40 V
• SBL3040PT peak surge current: 275 A
• SBL3040PT maximum specified forward voltage: 0.55 V at 15 A
• Rectifier package: TO-247AD / TO-3P
• External connections: 2 × 2-pole removable screw terminals
• Mounting: DIN rail
• Complete module part number: Not identified
• Complete module voltage/current rating: Not confirmed

Used, fully functional.

The 30 A / 40 V ratings above refer specifically to the installed SBL3040PT semiconductor and must not be interpreted as the confirmed electrical rating of the complete ELME module.