ZE3308MB is best understood by its configuration rather than by the series name alone. This Enerpac Electric Hydraulic Pump is set up for single-acting advance / hold / retract operation. For a single-acting circuit, the hold function separates this model from simple dump-style pumps by allowing hydraulic pressure to be maintained between advance and return.
Within the ZE range, valve choice and flow group are major selection points. ZE3 and ZE4 models use different motor sizes and rated-pressure flow levels. This model is built for 115V, single phase, 50/60 Hz power, making the electrical supply an important distinction from otherwise similar variants. With a 1.8 gal reservoir, this version occupies a specific capacity point within the series; reservoir sizing should follow the oil demand of the full circuit.
If the shortlist includes ZE3304MB, focus on the configuration change: reservoir capacity is 1.8 gal on ZE3308MB versus 1.2 gal on ZE3304MB. The remaining shared family characteristics should not obscure that difference.
Confirm that the connected equipment uses the single-acting circuit this model is configured to control.
Specifications
| Pump Series | ZE Series |
|---|---|
| Power Source | Electric |
| Maximum Operating Pressure | 10,000 psi |
| Rated Oil Flow | 40 in³/min @ 10,000 psi |
| Reservoir Capacity | 1.8 gal |
| Valve Model | VM33 |
| Valve Configuration | 3-way, 3-position manual valve |
| Valve Operation | Manual |
| Cylinder Compatibility | Single-Acting |
| Voltage | 115V |
| Phase | Single Phase |
| Frequency | 50/60 Hz |