14 16 1820 1 2 3 4 5 6 7 8 9 10 12 GFR Series - 3 Pole+N, D Trip, 300 mA 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. Ordering Information Rated Type/ Rated Current Cat. No. Voltage 5.0A GFR4D05300 480Y/277V AC Ground Fault Sensing & Relaying Equipment 6.0A GFR4D06300 480Y/277V AC E483493 8.0A GFR4D08300 480Y/277V AC 10A GFR4D10300 480Y/277V AC 12A GFR4D12300 480Y/277V AC 13A GFR4D13300 480Y/277V AC 15A GFR4D15300 480Y/277V AC 16A GFR4D16300 480Y/277V AC 20A GFR4D20300 480Y/277V AC GFL Series RCBO 25A GFR4D25300 480Y/277V AC Overload Trip Curves 30A GFR4D30300 480Y/277V AC Characteristics B, C, D 7200 32A GFR4D32300 480Y/277V AC 3600 35A GFR4D35300 480Y/277V AC 2400 1200 40A GFR4D40300 480Y/277V AC 600 480 360 Technical Specification 240 Number of Poles 3+N 120 Voltage Rating (maximum) 480Y/277V AC 60 40 Ground Fault Sensitivity Level 300 mA 20 Short Circuit Withstand Rating 30 kA Rated Frequency 50/60Hz 10 Trip Characteristic D 5 2 2 Cable Size & Tightening Torque Stranded Wire: 16 - 3 AWG (1.5 mm - 25 mm ) 17.5 lb-in (2.0 Nm) 2 2 16 - 10 AWG (1.5 mm - 5.5 mm ) 17.5 lb-in (2.0 Nm) Solid Wire: 1 2 2 18 - 16 AWG (1 mm - 1.5 mm ) 25 lb-in (2.8 Nm) 0.5 Electrical Life 6000 Switching Operations Mechanical Life 10000 Switching Operations Dimensions B C D 0.1 (to convert to inches multply by 0.03937) 0.05 85mm 45mm 0.01 70 mm 1.05 1.35 Rated current multiple x I n GFR Series RCBO Ground Fault Trip Curve 0.5 0.4 0.2 0.3 0.15 0.1 0.05 0.04 0.03 Weight 217 g 0.02 0.015 0.01 GFR Series RCBO Short Circuit Withstand Rating V I IR Backup 0.005 0.5 1 5 0.85 1.15 20A 10kA None I 3+N Pole Class J Fuse 250A or lower In 480Y/277V AC >20A 10kA Altech L Series Branch Circuit Breaker Altech R Series Supplementary Protector 1 35 Royal Road Flemington, NJ 08822-6000 t 908-806-9400 f 908-806-9490 www.altechcorp.com 1 3 5 N LINE N 6 4 2 UL 1077 Ground Fault Relay with Overload Protection 71mm 60mm 44mm t(s) Switch time t(s)UL 1077 Ground Fault Relay with Overload Protection GFR Series - 3 Pole+N, D Trip, 300 mA Applicable voltage systems and wiring examples. L1 GFR4 277 V 480 V 480 V L2 277 V 480 V N 277 V L3 L1 GFR4 120 V 208 V 208 V L2 120 V 208 V N 120 V L3 L3 480 V 480 V GFR L2 480 V * Jumper from terminal 2 to N L1 L3 277 V 277 V L2 277 V * Jumper from terminal 4 to N L1 * Either jumper connection can be used for both voltage configurations. 2 35 Royal Road Flemington, NJ 08822-6000 t 908-806-9400 f 908-806-9490 www.altechcorp.com LOAD LOAD LOAD LOAD 1 3 5 N LINE 1 3 5 N 1 3 5 N LINE LINE 1 3 5 N LINE N 4 6 2 N 6 N 4 6 4 2 2 N 6 4 2