Ground Fault Protection Relays System GFR-3 Ordering Information

Ground Fault Protection Relays System GFR-3
CSA approved GFR-3 is housed in a metal enclosure for panel mounting.

Our Ground Fault System protects electrical distribution equipment against damage caused by low magnitude ground currents. GFR-3 operates reliably on either high or low resistance grounded distribution systems.

Ground Fault Protection Relay GFR-3 works with Zero Sequence Current Transformer (Sensor). When the Ground Fault occurs, the Sensor sends the signal to trip GFR-3 relay. DPDT output contacts are provided to operate breakers, annunciators or other devices.

GFR-3 can operate with any Sensor supplied by Skymatic Controls or others. Ordering Information provides more details about the various Relay options, tripping ranges and selection of Sensors.

GFR-3 is an enhanced version of our GFR-2 with built-in self-test circuit and adjustable time delay. The self-test is activated by the TEST pushbutton. This test will trip both the Ground Fault Relay and the breaker. NO-TRIP pushbutton is also provided to test the Ground Fault Relay without tripping the breaker.

Technical Information
Power Supply: 115VAC, + 10%, -20%, 50/60Hz, 9Vamax
Tripping Range: See Ordering Information
Repeatability Better than 1%.
Temperature Range:   -10C thru + 55C
Output Contacts: DPDT, 10A @ 115VAC; 2 - N.O. in series - 1A @ 250VDC
Operating Time: 0.1 thru 1.2 sec., adjustable
Duty Cycle Continuous
Weight (approx.): 0.7 kg
Dimensions: 175 x 115 x 75 mm
Mounting Position: Semi-flush panel mount
Terminal Wire Size: No. 22AWG to No. 12AWG
Download GFR-3 Manual (pdf file)

Skymatic Controls inc. believes in the quality of its products. As a result, Skymatic Controls Inc. warrants that the product is free from defect of material or workmanship when used within specifications. At its sole discretion, Skymatic Controls Inc. agrees to repair, replace or refund the purchase price of the defective product if written notice is received within TWO (2) years of the date of purchase. Shipping costs are to be assumed by the customer. Skymatic Controls Inc. assumes no liability, expressed or implied, beyond the obligation to repair, replace or refund the purchase price of the defective product. This warranty is invalid if the product has been modified, repaired, or altered in any way not authorized previously by Skymatic Controls Inc. in writing.