VT-SSPA1-302-1X/V0/0-24 Bosch Rexroth Indramat
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The Bosch Rexroth Indramat VT-SSPA1-302-1X/V0/0-24 is part of the VT-SSPA Plugin Proportional Amplifiers series and features a voltage command input with an input resistance of 20 kiloohms. It operates at 24 VDC within a supply range of 18 to 35 volts and has a protection rating of IP65. Weighing 0.125 kg, the amplifier uses a self-clocking output stage and provides connection through 4 screw terminals with a PG11 cable gland.
Internal Product Review
The VT-SSPA1-302-1X/V0/0-24 is a Bosch Rexroth plugin proportional amplifier engineered for precise hydraulic control with 24 VDC operation and a self-clocking output stage. Voltage command input and 20 kΩ input resistance support clean signal processing in proportional valve applications. IP65 protection makes this amplifier an excellent choice for demanding industrial environments.
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Product Description:
The VT-SSPA1-302-1X/V0/0-24 is a plug-in proportional amplifier produced by Bosch Rexroth Indramat for the VT-SSPA Plugin Proportional Amplifiers series. Installed inside valve coils or near hydraulic manifolds, the module converts a voltage reference from a PLC or analog card into regulated current for a directional or pressure-proportional solenoid. In industrial automation, this permits stable, closed-loop control of oil flow or force without discrete relays or manual adjustments, enabling precise motion or clamping sequences in presses, injection machines, and general machinery.
Electrical parameters center on a nominal supply of 24 VDC. The circuitry operates from 18 V to 35 V, so power rails may deviate without interrupting the solenoid current. The voltage command input has a resistance of 20 kΩ, limiting the load on upstream signal sources. A self-clocking PWM stage modulates the output and helps keep coil heating low during operation. Inductive leads are acceptable when total line inductance remains below 100 µH; higher values can slow the current rise and reduce control accuracy. The amplifier mates with EN 175301-803 bases and uses a 2 + PE pin pattern, allowing connection to compatible DIN-style valve coils. An M3 × 40 mm screw secures the board inside the assembly. The housing can rotate 90° to align the cable exit with the available routing space around a manifold.
The cast enclosure carries an IP65 rating, preventing airborne dust and low-pressure water jets from reaching the electronics. Cables enter through a PG11 cable gland, and their conductors terminate at four screw terminals within the gland assembly. This connection arrangement allows the cable harness to approach from a suitable side of a compact manifold block without placing excessive strain on the conductors. The gland also supports an orderly cable path in installations where several proportional valves are mounted close together. The amplifier has a mass of 0.125 kg, which reduces the mechanical load and vibration stress placed on the valve stack during machine operation.
