Spec Sheet

MDG175DF4 | 6.8 L | 175 kVA
MOBILE DIESEL GENERATOR SET
EPA Emissions Certification: Final Tier 4
SPEC SHEET
5 of 6
OPERATING DATA
VFLEX ALTERNATOR SPECIFICATIONS
Make (Model) Marathon Electric (431PSL6612)
Poles 4
Field Type Rotating
Insulation Class – Rotor H
Insulation Class – Stator H
Total Harmonic Distortion <5%
Telephone Interference Factor <50
Standard Excitation Brushless
Bearings Double Shielded, Prelubricated
Coupling Direct Flexible Disc
Prototype Short Circuit Test Yes
Voltage Regulator Type AVR
Quantity of Sensed Phases 1
Regulation Accuracy (Steady State) ±0.5%
APPLICATION AND ENGINEERING DATA (CONTINUED)
Deration – Operational characteristics consider maximum ambient conditions. Derate factors may apply under atypical site conditions.
Please consult a Generac Mobile Authorized Service Dealer for additional details. All performance ratings in accordance with ISO3046, BS5514, ISO8528, ISO 8665, ISO 3046 SAE J1228, SAE J1995, and
DIN6271 standards.
POWER RATINGS
Standby: kW/kVA (A) Prime: kW/kVA (A)
1-phase, 120/240 VAC @ 1.0 pf—zig zag* 120/120 (500) 120/120 (500)
3-phase, 120/208 VAC @ 0.8 pf—low wye 155/194 (539) 140/175 (468)
3-phase, 120/240 VAC @ 0.8 pf—delta** 160/200 (481) 140/175 (421)
3-phase, 277/480 VAC @ 0.8 pf—high wye 160/200 (240) 140/175 (210)
3-phase, 346/600 VAC @ 0.8 pf—high wye*** 160/200 (192) 140/175 (169)
*Alternator limited.
**Power ratings achieved through use of optional 4-position phase switch.
***Power ratings achieved through use of optional VFLEX alternator.
FUEL AND DEF CONSUMPTION RATES
Load Fuel: gph (Lph) DEF: gph (Lph)
Standby Prime Standby Prime
25% 4.1 (15.4) 3.8 (14.5) NA NA
50% 6.7 (25.5) 6.3 (23.8) NA NA
75% 9.2 (34.8) 8.4 (31.8) NA NA
100% 12.3 (46.5) 10.2 (38.6) NA 0.36 (1.4)