EEA-PAM-553-A-33 Vickers
Wake Industrial LLC is not an authorized distributor of this product.
MPN: 105EC00052A
The Vickers EEA-PAM-553-A-33 is a power amplifier from the EEA-PAM-5-A-33 Power Amplifiers series. It operates with a nominal supply voltage of 24 V DC and a power rating of 50 watts, and supports supply voltages between 20 and 40 V DC. The amplifier is designed to function in ambient temperatures ranging from 0 to 50 degrees Celsius and allows a maximum solenoid current of 2.7 Amps.
Internal Product Review
The EEA-PAM-553-A-33 power amplifier from Vickers features a ±10 V command voltage input and a voltage input impedance of 47 kΩ, ensuring precise control in hydraulic systems. Its nominal 24 V DC supply and 50 W power rating support stable operation under varying industrial conditions. This amplifier stands out for dependable performance in demanding automation applications.
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Product Description:
The EEA-PAM-553-A-33 is a plug-in power amplifier card manufactured by Vickers for the EEA-PAM-5-A-33 Power Amplifiers series. Installed in hydraulic control cabinets, the card interprets electrical reference signals and modulates the current applied to proportional valve solenoids, allowing precise flow or pressure adjustment within automated machinery. By converting low-level commands into regulated output current, it forms the electronic bridge between a PLC’s analog outputs and the magnetic actuators that shift the valve spool.
For stable operation, its nominal supply rail is 24 V DC, but the design tolerates dips to 20 V DC and surges to 40 V DC without losing current regulation. The board can dissipate up to 50 W, so heat sinks or forced airflow are usually unnecessary in standard panel layouts. A dedicated output stage delivers a peak solenoid drive of 2.7 A, enabling full stroke on most Vickers proportional directional and pressure valves. Current feedback circuitry tracks the coil resistance over temperature and duty cycle, maintaining linear valve performance across the rated load range.
The amplifier accepts differential current commands of ±20 mA for systems wired to industrial current loops, or voltage references of ±10 V when interfacing with common analog PLC modules. A low current input resistance of 100 Ω ensures correct loop compliance, while the separate voltage input presents a high impedance of 47 kΩ so it does not load delicate voltage sources. Ambient service temperatures span 0 °C to 50 °C, matching typical enclosure conditions on factory floors. Within that range the onboard components maintain accuracy, allowing the card to translate command changes into proportional hydraulic motion without recalibration.
