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NOMENCLATURE
SELECTION
RC820-HP 1
Y 12
(1)
(2) (3) (4) (5)
(1)
Model (Series) No .
RC820
(2) Reset Mode
HP . . . Manual Reset
AP . . . . Auto Reset
(3) Current Rating
1 . . . . . . 7 AT
2 . . . . . . 55 AT
3 . .. . . . 110 AT
(4) Control Volt .
Y ... . . . 100-120/200-240 V AC
(5) Variation
... .. . Standard Surface Mounting
2 . . . . . . Flush Mounting
12 . . . . Remote Reset (Standard)
72 . . . . Remote Reset
(UL Listed/CSA Certified)
RATINGS & SPECIFICATIONS
RESET
MOUNTING
UL & CSA
MODEL NO .
SURFACE
YES
RC820-HP == := :'Y
MANUAL
FLUSH
NO
RC820-HP :=_:='Y2
AUTO
SURFACE
-Y
ES
RC820-AP-'L------'Y
NO
RC820-HP[==== Y12
REMOTE
SURFACE
YES
RC820- HP ~=_= . Y72
Model
RC820-
RC820-
RC820-
HP1Y
HP2Y
HP3Y
Item
AP1 Y
AP2Y
AP3Y
Applicable Circuit
Three-phase circuit rated up to 600V AC, 50/60 Hz-Direct
(Also, applicable to high-voltage circuit by combining with high-
voltage CT)
Rated Current
Rated Ampere-turns (AT)
7AT
55AT
-:
I
110AT
Setting Range
75-150% of rated AT
Overload Protection
Ultimate Operating
105-125% of setting current
Current
Trip Time Setting Range
3-40 sec . for starting characteristics at 600% of setting current
Operating Time
=j=20% of setting time
Accuracy
Single-Phase Protection
Minimum Operating
85% of setting current under one-phase completely loss (When
Current
measured on either remaining phase) .
Operating Time
Less than 4 sec.
Control Power
Rating
100-120V/200-240 V AC, 10, 50/60 Hz
Allowable Volt.
85%-110%
Fluctuation
Power Consumption
Control Power Circuit
2 VA
Detecting (CT) Circuit
0.3 VA/phase at rated current
Output Contact Capacity
Contact Arrangement
1 NO-NC (SPDT/Form C)
Contact Capacity
120V AC-5 .OA (Resistive load)
120 V AC-3 .OA (inductive load, pf=0 .40)
125V DC-0 .2A (L/R = 7ms)
250V DC-0 .1 A (L/R = 7ms)
NEMA B300
Weight
Approx . 1 kg (2 .2 lbs.)
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