TCF-E Series

TCF1E

Lead Time: 7 Days

$318.75 (USD) / EACH

Description Of Function

<p>Two wires from the Over Temp/Seal Leakage relay are connected to a N.C. thermal switch in the windings of the pump motor to monitor for overheating. A low-voltage DC signal is applied to check the status of the thermal switch. Two additional wires are connected to a N.C. float switch in the Leakage Sensor. A separate low-voltage DC signal is applied to check the status of the Leakage Sensor. These products have isolated output contact relays, one for over temperature and one for seal leakage.</p><p>
With input voltage applied, normal temperature condition (thermal switch closed) and no seal leakage (Leakage Sensor contact closed), both the over temperature relay and the seal leakage relay are energized. The TEMP & SEAL LEDs are both Green, indicating normal conditions and input voltage applied.</p><p>When the motor temperature rises and the N.C. thermal switch opens, the over temperature relay is de-energized, opening a contact that had been closed and turning off the pump contactor. The TEMP LED turns Red. If the over temperature condition is cleared, the unit will reset based on the setting of the Over Temp switch. In the AUTO mode, the unit will reset automatically. In the MANUAL mode, the Over Temp Reset button must be pushed to clear the alarm and reset the relay.</p><p>If the seal starts to leak, contaminating fluid enters the pump motor cavity. The contact in the Leakage Sensor will open and the seal leakage relay is de-energized, reclosing a contact that was opened and providing an alarm indication of a leaking seal. The SEAL LED turns Red.</p>

Function Chart

Product Overview

Features
  • Monitors Submersible Pumps for Over Temperature & Seal Leakage
  • Works with Pumps using Float Type Leakage Detector
  • Auto & Manual Reset for Over Temperature
  • Low-Profile Adjustment Switch & Reset Button
  • Full Status Indication on Top of Unit for Easy Troubleshooting
  • 11 Pin Back-Mounted Socket Provided with Relay
Enclosure Style

Flange-enclosure designed for deadfront door-mounting

Configuration / Contact Rating
  • 7A SPDT & SPNC
  • 7A @ 240V AC/7A @ 28V DC
Application Information
  • Voltage Tolerance: AC Operation: +10/-15% of nominal at 50/60 Hz.
  • Load (Burden): 3 VA
  • Indicator LEDs:
    Seal Leak: Green ON with input voltage applied; no seal leak and relay energized; Red ON when seal leak detected and relay de-energized
    Temperature: Green ON with input voltage applied, normal temperature condition and relay energized; Red ON when over temperature detected and relay de-energized
  • Probe Voltage: 5V DC Pulsed
  • Response Time: Pick-up & Drop-out: 1 Second
  • Output Contacts: 7A @ 240V AC/7A @ 28V DC, 1/4HP @ 120V AC (N.O.)
  • Life: Mechanical: 10,000,000 operations; Full Load: 100,000 operations
  • Temperature: -28° to 65° C (-18° to 149° F)
Approvals

Operation

Two wires from the Over Temp/Seal Leakage relay are connected to a N.C. thermal switch in the windings of the pump motor to monitor for overheating. A low-voltage DC signal is applied to check the status of the thermal switch.  Two additional wires are connected to a N.C. float switch in the Leakage Sensor.  A separate low-voltage DC signal is applied to check the status of the Leakage Sensor. These products have isolated output contact relays, one for over temperature and one for seal leakage. 

With input voltage applied, normal temperature condition (thermal switch closed) and no seal leakage (Leakage Sensor contact closed), both the over temperature relay and the seal leakage relay are energized. The TEMP & SEAL LEDs are both Green, indicating normal conditions and input voltage applied. 

When the motor temperature rises and the N.C. thermal switch opens, the over temperature relay is de-energized, opening a contact that had been closed and turning off the pump contactor. The TEMP LED turns Red. If the over temperature condition is cleared, the unit will reset based on the setting of the Over Temp switch.  In the AUTO mode, the unit will reset automatically.  In the MANUAL mode, the Over Temp Reset button must be pushed to clear the alarm and reset the relay.

If the seal starts to leak, contaminating fluid enters the pump motor cavity. The contact in the Leakage Sensor will open and the seal leakage relay is de-energized, reclosing a contact that was opened and providing an alarm indication of a leaking seal. The SEAL LED turns Red.

You May Be Interested in These Other Products

  • Function Configuration: Dual Channel 8 Pin (2) SPNO
  • Control Voltage: 240V AC
  • Output: (2) 5A SPNO
  • Sensitivity Range: 4.7K to 100K ohms
  • Mount: Flange for Door Mounting
$260.57
  • Control Voltage: 120V AC
  • Output: 4 Form C Contacts
  • Options: Standard (LED and Push-to-Test Included)
  • Terminal Configuration: Blade
$13.79