The 5120E  speed control unit is an all electronic device designed to control engine speed with fast and precise response transient load changes.   

2)Isochronous Operation/Steady Stability:  +/-0.25% or better

3)Supply:  12 or 24 VDC Battery Systems(transient&reverse voltage protected)

4)Power Consumption:  50 ma continuous plus acutator current

5)Maximum Actuator Current at 25celsius(77celsius F):  10 Amps continuous

6)Weight: 0.7kg

7)Relative Products;

PER5221 can substitute for ESD5221

PER5500 can substitute for ESD5500

PER5550 can substitute for ESD5550

PER5111 can substitute for ESD5111

PER5220 can substitute for ESD5220

PER5570 can substitute for ESD5570

PER5520 can substitute for ESD5520

PER5522 can substitute for ESD5522

PER5330 can substitute for ESD5330

PER5521 can substitute for ESD5521

PER5120 can substitute for ESD5120