Weight 217 g
Dimensions
(to convert to inches multply by 0.03937)
The GF Series of Equipment Ground Fault Protection Relays (Earth
Leakage Protection) is the latest addition to Altech's UL Listed product
range, providing ground fault (residual current) protection for circuits
with loads up to 63A. Short Circuit Withstand rating is 10kA.
GF Series - 1 Pole+N, 30 mA
277V AC Ground Fault Sensing
and Relaying Device (RCCB)
UL 1053
Ground Fault Sensing
and Relaying Device
35 Royal Road • Flemington, NJ 08822-6000 • t 908-806-9400 • f 908-806-9490 • www.altechcorp.com
Ground Fault Sensing
& Relaying Equipment
E483493
1
85mm
45mm
44mm
60mm
71mm
17.5mm
35 mm
GF Series RCCB
Ground Fault Trip Curve
0.5
0.005
0.01
0.02
0.03
0.04
0.05
0.1
0.15
0.2
0.3
0.4
0.5
0.015
1
1.150.85
5
t(s)
I∆
I∆n
Ordering Information
Rated Type/ Rated
Current Cat. No. Voltage
25A GF225030 277V AC
40A GF240030 277V AC
63A GF263030 277V AC
Number of Poles 1+N
Voltage Rating (maximum) 277V AC
Ground Fault Sensitivity Level
Rated Frequency
Cable Size & Tightening Torque Stranded Wire: 16 - 3 AWG (1.5 mm2 - 25 mm2) @ 17.5 lb-in (2.0 Nm)
16 - 10 AWG (1.5 mm2 - 5.5 mm2) @ 17.5 lb-in (2.0 Nm)
18 - 16 AWG (1 mm2 - 1.5 mm2) @ 25 lb-in (2.8 Nm)
50/60Hz
Electrical Life 6000 Switching Operations
Mechanical Life 10000 Switching Operations
Technical Specification
30mA
GF Series RCCB Short Circuit Withstand Rating
V IR Backup
1+N Pole 10kA Class J Fuse 250A or lower
277V AC Altech L Series Branch Circuit Breaker
Altech R Series Supplementary Protector
UL 1053
Ground Fault Sensing
and Relaying Device
35 Royal Road • Flemington, NJ 08822-6000 • t 908-806-9400 • f 908-806-9490 • www.altechcorp.com
Applicable voltage systems and wiring examples.
GF Series - 1 Pole+N
2
NOTE:
Wiring a hot leg/phase to
N terminal is not permitted.
LOAD LOADLOAD
LOAD
400 V 400 V240 V
400 V240 V
240 V
GF2
GF2
GF2
L1
L2
N
L3
480 V 480 V277 V
480 V277 V
277 V
L1
L2
N
L3
208 V 208 V120 V
208 V120 V
120 V
L1
L2
N
L3
N
LINE
N
1
2
120 V120 V
240 V
L2NL1
