Denison 701-00610-8 A2O series proportional amplifier

Denison (Parker) 701-00610-8/EC01 A2O Proportional Amplifier
Conclusion: Although it has not been officially discontinued, it belongs to the old model with a long ordering cycle (18-20 weeks). The market is dominated by inventory/second-hand/refurbished, and Parker can still accept orders for production (June 2, 2026).
1、 Full name and ownership of the model
Model: 701-00610-8
Complete model: EC01 A2O 4DP03E/06E 12V
Brand: Denison → Now belongs to Parker Hydraulic
Series: EC01 Analog Proportional Amplifier (A2O: 2-channel solenoid valve, open-loop)

2、 Core purpose
Specially designed to control Denison 4DP03/4DP06 series proportional directional valves (with dual proportional electromagnets), amplifying 0-10V/4-20mA control signals into solenoid valve drive currents (up to approximately 2.2A).
3、 Key parameters (701-00610-8)
Power supply: 12VDC
Control channels: 2 channels (A and B solenoid valves)
Control mode: Open loop (O=Open loop)
Input signal: 0-10V or 4-20mA (DIP switching)
Output current: maximum 2200mA
Flutter frequency: 150Hz (fixed)
Installation: DIN rail, 48 pin European connector
4、 Production stoppage and supply status (June 2, 2026)
Official status: Parker has not released an EOL (discontinued) announcement, but the EC01 series is already a legacy model and is no longer being promoted.
Brand new original: available for ordering, with a lead time of approximately 4-5 months (18-20 weeks) and a relatively high price.
Market source:
A small amount of new inventory (scarce)
More refurbished/second-hand (common, short warranty)
Alternative model: Parker’s new generation PWD00A-400 series (digital, can directly replace EC01, with better parameters).
5、 Model comparison (common order numbers in the same series)
701-00600-8: EC01 A1O VP01 (1-way solenoid valve)
701-00610-8: EC01 A2O 4DP03E/06E 12V (2 channels, commonly used)
701-00613-8：EC01 A2O 4DP03E/06E 24V
6、 Summary
701-00610-8 (EC01 A2O): Not discontinued, available for ordering, long lead time, old model.
The new project suggests using PWD00A-400 as a direct replacement; Old equipment maintenance can purchase original or refurbished parts.