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Protection Relays & Controls Generator & Single-Function Protection–Frequency G3000 Series Frequency Relay Description The G3000 Frequency Relay is intended for frequency monitoring on generators, busbars or other distribution systems. The relay contains the functions “under frequency” and “over frequency”, time delayed, and two individual output relays—one relay for each function. Basic adjustments can be done on the dials on the front panels. More configuration options are available through PC configuration via the optional G0100 Programming Kit. PC programming enables the user to extend the ranges on the dials on the front panel. One version covers all system voltages from 63 Vac to 690 Vac. Rated voltage can be adjusted by a preset button or PC configuration. Auxiliary supply voltage is 24 Vdc. 24 Vdc + – RESET Simplified Circuit Diagram UNDER FREQ. OVER FREQ. Features & Benefits G3000 (Frequency Relay) L1 L2 L3 Ordering Information Ordering Number Control power G3000.0010 24 Vdc accessories requirement G0100 Optional Accessories G0100 Programming Kit Connects to RS232 port. Includes blank frontplate labels and permanent pen for texting scales. Features BENEFITS PC configuration Over and under frequency protection in one relay User configurable scales and setpoints Suits broad variety of applications 63 Vac to 690 Vac systems can be monitored by the same unit Supports wide range of system voltages Specifications Supply 8-36 Vdc/0.75 W at 24 Vdc Input Voltage 63-690 Vac ± 30% Input Current 5 A CT, max. 10 A Frequency35-75Hz Trip Level OF: 85 to 115% (max. 75 to 125%) UF: 85 to 115% (max. 75 to 125%) Delay 1-10 sec. (max. 1-360 sec.) Relay Rating 380 Vac, 5 A, 1250 VA, 150 Vdc, 5 A, 120 W Overfrequency Relay Normal state: ND (NE) Latching: Non-latching (latching) Underfrequency Relay Normal state: ND (NE) Latching: Non-latching (latching) Automatic (manually by terminal 11) Reset Accuracy ± 5% Repeatability ± 1% Serial LinkRJ11-modular Operating Temperature –20°C to + 70°C EMCEN50263 Burn-in 50 hours before final test Enclosure Material Polycarbonate. Flame retardant Weight 0.3 kg Dimensions H 73 mm (2.87”); W 75 mm (2.95”); D 114 mm (4.49”) Installation 35 DIN rail or two 4 mm, (3/16”) screws www.BDTIC.com/littelfuse © 2013 Littelfuse Protection Relays & Controls Littelfuse.com/g3000 Rev: 4-A-050213