Competitive Cross Reference

Macromatic offers this cross-reference as a service to our customers to assist in the selection of replacement products.  Every effort has been made to insure that these products are electrically and functionally equivalent to the Macromatic products except as noted.   Macromatic cannot be responsible for errors of printing or corrections of data taken from published competitive data.  It is the user's responsibility to insure the suitability of the substitution.

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Macromatic Equivalent

Catalog Number: SFP120A100

Use Socket: 70169-D

May not be exact product—for reference only.

  • SEAL LEAKAGE RELAY
  • SINGLE CHANNEL
  • Sensitivity Range: 4.7K - 100K Ohms
  • 120V AC
  • 10A SPDT
Automation Direct Product
  • Competitor Part # PSFR-1C-120A | Series: PSFR

Description Of Function

SF Series Pump Seal Failure Relays are designed to monitor the shaft seals of submersible pumps. A resistive-measuring probe is installed in the pump seal cavity. With input voltage applied, the LED is Green ON. If the seal starts to leak, contaminating fluid enters the seal cavity, which lowers the resistance between the internal probe & the common connection. When the resistance drops below the user-adjustable sensitivity set-point of the relay, the output relay energizes & the LED turns Red ON. The relay output can be used to give an alarm indication of a leaking seal. These products will automatically reset when the fault condition clears. Probes are pulsed with a DC voltage to prevent electroplating.

Function Chart
Application Information
  • Voltage Tolerance: AC Operation: +10/-15% of nominal at 50/60 Hz.
  • Load (Burden): 3 VA
  • Indicator LEDs: Green ON with input voltage applied; Red ON when seal leak detected & relay is energized.
  • Probe Voltage: 5V DC Pulsed
  • Response Time: Pick-up & Drop-out: 1 Second
  • Output Contacts: 10A @ 240V AC/7A @ 28V DC, 1/4HP @ 120V AC (N.O.)
  • Life: Mechanical: 10,000,000 operations; Full Load: 100,000 operations
  • Temperature: -28o to 65o C (-18o to 149o F)
  • Approvals:

    c-ur-us.jpg  UL-socket.jpg
Dimensions - Inches (Millimeters)
Macromatic Distributor Stock Status
  • Allied Distributor Part #: 70175161 Info/Buy

  • Grainger Distributor Part #: 5WMJ7 Info/Buy

  • Galco Distributor Part #: SFP120A100 Info/Buy

  • Jo Kell Distributor Part #: Contact Distributor Info/Buy

  • Commercial Electric Distributor Part #: Contact Distributor Info/Buy

  • Lakeland Engineering Distributor Part #: SFP120A100 Info/Buy

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