SEAL LEAKAGE &
TEMPERATURE RELAYS

Seal Leakage Relays monitor the shaft seals of submersible pumps to protect against damage and premature failure. Combination Over Temperature & Seal Leakage Relays provide protection from both conditions. Everything needed for easy set-up, operation and troubleshooting is on top of the units: Bi-color LED status indication and low-profile adjustments.

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Monitor and Protect Submersible Pumps From Damage

Models are available with plug-in enclosures (SFP and TCP Series) or Flange Mounted (SFF and TCF Series) for mounting on inner door with a back-mounted socket.

SEAL LEAKAGE RELAYS

Seal Leakage Relays monitor pumps using Resistance Sensing Leakage Detection to provide a warning of leaking seals. Select from single channel or dual channel configurations to monitor two pumps. Two sensitivity ranges are available to meet requirements.

OVER TEMPERATURE & SEAL LEAKAGE RELAYS

These single channel relays protect pumps against damage from both conditions. TCF-A models can be installed in place of existing Flygt MiniCas; TCF-E works with pumps using float-type sensors; TCF-F works with pumps using CLS or FLS sensors.

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TCP8G250

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

24V AC

Output:

(2) 7A SPDT

Sensitivity Range:

1 – 250 kΩ

Mount:

11-Pin Socket

$131.39
Add to Cart

TCP8G100

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

24V AC

Output:

(2) 7A SPDT

Sensitivity Range:

4.7 – 100 kΩ

Mount:

11-Pin Socket

$131.39
Add to Cart

TCP7G250

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

24V AC/DC

Output:

(2) 7A SPDT

Sensitivity Range:

1 – 250 kΩ

Mount:

11-Pin Socket

$214.13
Add to Cart

TCP7G100

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

24V AC/DC

Output:

(2) 7A SPDT

Sensitivity Range:

4.7 – 100 kΩ

Mount:

11-Pin Socket

$214.13
Add to Cart

TCP2G250

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

120V AC

Output:

(2) 7A SPDT

Sensitivity Range:

1 – 250 kΩ

Mount:

11-Pin Socket

$121.32
Add to Cart

TCP2G100

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

120V AC

Output:

(2) 7A SPDT

Sensitivity Range:

4.7 – 100 kΩ

Mount:

11-Pin Socket

$121.32
Add to Cart

TCP1G250

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

240V AC

Output:

(2) 7A SPDT

Sensitivity Range:

1 – 250 kΩ

Mount:

11-Pin Socket

$125.23
Add to Cart

TCP1G100

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

240V AC

Output:

(2) 7A SPDT

Sensitivity Range:

4.7 – 100 kΩ

Mount:

11-Pin Socket

$125.23
Add to Cart

TCF8F

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

24V AC

Output:

(2) 7A SPDT

Sensitivity Range:

Designed to Flgyt Pump

Mount:

11-Pin Socket

$341.40
Add to Cart

TCF8E

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

24V AC

Output:

(2) 7A SPDT

Sensitivity Range:

Designed to Ebara Pump

Mount:

11-Pin Socket

$344.61
Add to Cart

TCF8D250

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

24V AC

Output:

(2) 7A SPDT

Sensitivity Range:

1 – 250 kΩ

Mount:

11-Pin Socket

$338.95
Add to Cart

TCF8D100

TC Series

Function Configuration:

Single Channel Seal Leak / Over Temperature

Control Voltage:

24V AC

Output:

(2) 7A SPDT

Sensitivity Range:

4.7 – 100 kΩ

Mount:

11-Pin Socket

$381.32
Add to Cart

Frequently Asked Questions About Current Sensing Relays

Some submersible pumps have non-standard seal and temp sensors. Visit this link to help determine which product is best for your pump.
Macromatic maintains an extensive cross reference database. Follow the link here.
Macromatic relays specify the power consumed by the device as “burden” in units of VA. Look for the burden specification in the catalog page for the specific device you have. The unit of VA(volt-amps) is essentially the same as Watts(power), current draw can be calculated in Amps by taking the VA specification and dividing by the voltage control voltage you are using to power the device.
First consult pump documentation as some pumps have specific requirements. If none, dial the sensitivity to its highest level(highest resistance). If the relay gives no alarm you are done. If you receive a seal alarm, adjust the sensitivity back down until the alarm clears. Typical seal leak detection applications use sensitivity settings from 5K to 50K ohms. Lower values are less prone to nuisance alarms but are also less sensitive to the onset of seal leakage.

Seal Leakage & Temperature Relay Downloads

TCF Series – Over Temperature & Seal Leakage Brochure

Seal Leak & Temperature Relays

Macromatic’s Over Temperature & Seal Leakage Relays

Knowledge Base Articles

Technical reports to answer your questions

Connection of Pump Seal Failure (Seal Leak) Relays in Submersible Pump Applications

Issue: I need to know how to install and connect the wiring for my seal leak probe to a Macromatic Seal Failure Relay. Solution/Resolution: Making the right connections: Seal leak probes are typically built into, or attached to, the submersible pump. Most pumps will have only a single seal leak

Macromatic’s New TCF Series Drop-In Replacement for MPE’s PMR1 & PMR3 Has More Advantages

Macromatic’s TCF Series Over Temperature Seal Leakage Relays are a drop-in replacement for the PMR1 However, there are a several major advantages of the Macromatic product: To view a more detailed comparison between the two products, click here. Click here for cross reference information.

Where Are Seal Leakage Relays Used?

Bearings are one of the most important components of electric motors.  Normally, they are designed to operate for many years.  Yet, more than half of motor failures are caused by bearing failure. The most common causes of premature bearing failure are lubrication loss and contamination ingress. That is why all

Replacing a Crouzet PNR110A with a Macromatic SFP120A100 Seal Leak Relay

Issue: I have been using a Crouzet PNR110A liquid level relay as a seal leak relay. To make it work properly, I had to jumper pins 5 6. Now, I want to switch to the Macromatic SFP120A100 unit and notice no such jumper is shown on the connection diagram. Is

Need Answers? Look Here.

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