
GFL Series (5A - 40A)
10kA UL489 Listed Branch Circuit Breaker with
Equipment Ground Fault Protection (RCBO)
The GFL Series range is a combined Branch Circuit Breaker and
Equipment Ground Fault Protector, featuring dual pole switching (live
and neutral disconnect) and designed to provide protection against
short circuits, overloads, AC ground faults (residual current faults) as
well as pulsating DC ground faults.
GFL Series RCBO Ordering Scheme
GFL 2 C
NOTE:
2 = 240V Single Phase System with neutral connection.
S = 120/240V Split Phase System with no neutral connection.
SN = 120/240V Split Phase System with neutral connection.
UL 489
Technical Specification
Number of Poles 1+N (2) 2 (S), 2+N (SN)
Branch Circuit Breaker
with Ground Fault Relay
Rated Voltage (U
Rated Current 5, 6, 8, 10, 12, 13, 15, 16, 20, 25A 5, 6, 8, 10, 12, 13, 15, 16, 20, 25, 30, 32, 35, 40A
Rated Residual Operating Current (I
Rated Short Circuit Capacity (Inc) 10kA
Rated Frequency 50/60Hz
Overload Tripping B, C and D
Cable Size & Tightening Torque 14 - 3 AWG (2mm2 - 25mm2) @ 17.5lb-in (2.0Nm)
Electrical Life 6000 Switching Operations
Mechanical Life 10000 Switching Operations
No. of Poles2Trip Curve
B, C, D
Rated Current
5, 6, 8, 10, 12,
13, 15, 16, 20, 25,
30*, 32*, 35*, 40A*
* S & SN versions only
Residual Current Sensitivity
010 = 10mA**
030 = 30mA
100 = 100mA
300 = 300mA
** 10mA only available on
current ratings up to 25A
EXAMPLE:
GFL2C080302
) 240V AC 120/240V AC
n
) 10**, 30, 100, 300mA
n
18 - 16 AWG (1mm2 - 1.5mm2) @ 25lb-in (2.8Nm)
2 Version
35mm
208 030
System
2, S, SN
see note
below
GFL Series RCBO
Overload Trip Curves
7200
3600
2400
1200
600
480
360
240
120
60
40
20
10
5
Switch off me t(s)
1
0.5
0.1
0.05
0.01
1
1.351.05
3
2
Rated current mulple x I
C.B. W/EQ.GFP
E483494
B DC
4
6
5
Characteriscs B, C, D
8
9
7
12
10
14
n
16
20
18
71mm
60mm
44mm
105mm
45mm
17.5mm
S, SN Versions
53mm
GFL Series RCBO
Ground Fault Trip Curve
t(s)
0.5
0.4
0.2
0.3
0.15
0.1
0.05
0.04
0.03
0.02
0.015
0.01
0.005
1
0.5
1.150.85
5
I∆
I∆n

GF Series (up to 63A)
480Y/277V AC Ground Fault Sensing
and Relaying Device (RCCB)
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 RCCB Ordering Scheme
GF 2 25 030
No. of Poles
2, 4
EXAMPLE:
GF225030
Technical Specification
Number of Poles 2 4
Rated Voltage (U
Rated Current 25, 40, 63A
Rated Residual Operating Current (I
Rated Frequency 50/60Hz
Cable Size & Tightening Torque Stranded wire sized 16 - 3 AWG (1.5mm
Electrical Life 6000 Switching Operations
Mechanical Life 10000 Switching Operations
) 277V AC 480Y/277V AC
n
GF Series RCCB Short Circuit Withstand Rating
V IR Backup
2 Pole 10kA Class J Fuse 250A or lower
277V AC Altech L Series Branch Circuit Breaker
4 Pole Class J Fuse 250A or lower
480Y/277V AC 10kA Altech L Series Branch Circuit Breaker
Altech R Series Supplementary Protector
Altech R Series Supplementary Protector
Rated Current
25, 40, 63A
Residual Current Sensitivity
010 = 10mA*
030 = 30mA
100 = 100mA
300 = 300mA
500 = 500mA
*(ONLY 2 pole, 25A - Cat. No. GF225010)
) 10*, 30, 100, 300, 500mA
n
2
- 25mm2) @ 17.5lb-in (2.0Nm)
Solid wire sized 16 - 10 AWG (1.5mm
Solid wire sized 18 - 16 AWG (1mm
85mm
45mm
2
- 5.5mm2) @ 17.5lb-in (2.0Nm)
2
- 1.5mm2) @ 25lb-in (2.8Nm)
2 Pole
35 mm
Ground Fault Sensing
& Relaying Equipment
GF Series RCCB
Ground Fault Trip Curve
t(s)
0.5
0.4
0.2
0.3
0.15
0.1
0.05
0.04
0.03
0.02
0.015
0.01
0.005
1
0.5
1.150.85
E483493
5
I∆
I∆n
UL 1053
and Relaying Device
Ground Fault Sensing
71mm
60mm
44mm
17.5mm
4 Pole
70 mm

GFR Series (5A - 40A)
480Y/277V AC Ground Fault Relay
with Overload Protection (RCBO)
The GFR Series is a combined Equipment Ground Fault Relay and
Supplementary Protector (RCBO), featuring dual pole switching (live
and neutral) and designed to provide protection against overloads and
AC ground faults (residual current faults) as well as pulsating DC ground
faults. Short Circuit Withstand rating is 10kA.
GFR Series RCBO Ordering Scheme
GFR 2 B 06 030
Ground Fault Sensing
& Relaying Equipment
E483493
No. of Poles
2, 4
Trip Curve
B, C, D
Rated Current
5, 6, 8, 10, 12, 13,
15, 16, 20, 25, 30,
EXAMPLE:
32, 35, 40A
GFR2B06030
Technical Specification
Number of Poles 2 4
Rated Voltage (U
UL 1077
Rated Current 5, 6, 8, 10, 12, 13, 15, 16, 20, 25, 30, 32, 35, 40A
Rated Residual Operating Current (I
Rated Frequency 50/60Hz
Ground Fault Relay
Overload Tripping B, C and D
Cable Size & Tightening Torque Stranded wire sized 16 - 3 AWG (1.5mm2 - 25mm2) @ 17.5lb-in (2.0Nm)
with Overload Protection
) 277V AC 480Y/277V AC
n
) 10*, 30, 100, 300, 500mA
n
Solid wire sized 16 - 10 AWG (1.5mm2 - 5.5mm2) @ 17.5lb-in (2.0Nm)
Solid wire sized 18 - 16 AWG (1mm2 - 1.5mm2) @ 25lb-in (2.8Nm)
Electrical Life 6000 Switching Operations
Mechanical Life 10000 Switching Operations
GFR Series RCBO Short Circuit Withstand Rating
V I IR Backup
2 Pole Class J Fuse 250A or lower
277V AC >20A 10kA Altech L Series Branch Circuit Breaker
4 Pole Class J Fuse 250A or lower
480Y/277V AC >20A 10kA Altech L Series Branch Circuit Breaker
≤20A 10kA None
Altech R Series Supplementary Protector
≤20A 10kA None
Altech R Series Supplementary Protector
Residual Current Sensitivity
010 = 10mA*
030 = 30mA
100 = 100mA
300 = 300mA
500 = 500mA
* 10mA only available on
current ratings up to 25A, 2 pole only
2 Pole
35 mm
GFR Series RCBO
Overload Trip Curves
7200
3600
2400
1200
600
480
360
240
120
60
40
20
10
5
1
Switch off me t(s)
0.5
B DC
3
0.05
0.01
0.1
1
2
1.351.05
Rated current mulple x I
Characteriscs B, C, D
4
5
6
8
9
7
16
20
12
10
18
14
n
71mm
60mm
44mm
Cat. No. GFEP
Printed June 2016
85mm
45mm
17.5mm
4 Pole
70 mm
t(s)
0.15
0.05
0.04
0.03
0.02
0.015
0.01
0.005
GFR Series RCBO
Ground Fault Trip Curve
0.5
0.4
0.2
0.3
0.1
1
0.5
1.150.85
5
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