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The Macromatic SFF024C100 is a seal leak relay. This 8 Pin plug-in relay has an input voltage of 24V. It is a deadfront, inner door mounted, dual channel relay made to monitor for leaks in submersible pump seals and has two 5A SPNO outputs. The sensitivity is adjustable and LEDs on the top show the current status. The dual channel feature means that the relay can detect leaks for two pumps. Includes 8 pin OR08-PC back mounted socket.
Note: Image is for reference, actual part may differ.
Specifications
- Relay Function- Seal Leak, Dual Channel
- Input Voltage- 24V AC
- Output- (2) 5A SPNO
- Sensitivity Range- 4.7K to 100KOhm
- Voltage Tolerance- +10/-15% of nominal @ 50/60 Hz
- Load- 3VA
- Probe Voltage- 5V DC Pulsed
- Operating Temperature- -28 C to 65 C (-18 F to 149 F)
- Storage Temperature- -40 C to 85 C (-40 F to 185 F)
- Output Contacts- (2) 5A @ 240V AC / 5A @ 28V DC, 1/4 HP @ 120V AC (N.O.)
- Life- Mechanical: 10,000,000 Operations, Full Load: 100,000 Operations
- Response Time- Pick up: 1 sec, Drop out: 1 sec
- Dimensions- 4.2" Height x 2.1" Width x 2.9" Depth
- Approvals- UL and CUL Recognized, CE, UL & CUL Listed (with Socket)
The resistance is measured by a probe that is inserted in the pump seal cavity. In the event of a leak, resistance between the probe and the connection is lowered by contaminating fluid that goes into the seal cavity. The relay energizes when the resistance goes below the preset sensitivity point and the LED is red. Otherwise, the LED is green as long as the input voltage is present.
Macromatic SFF Series Relay Installation Instructions
Macromatic Dual Channel 24V 4.7K to 100K Pump Seal Failure Relay
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