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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.
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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.
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Technical Information |
| Power
Supply: |
115VAC,
+ 10%, -20%, 50/60Hz, 9Vamax |
| Tripping
Range: |
See
Ordering Information |
| Repeatability |
Better
than 1%. |
| Temperature
Range: |
-10°C
thru + 55°C |
| 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 |
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| Download
GFR-3 Manual (pdf file) |
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LIMITED
WARRANTY
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. |
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Ordering Information 