VT-MSPA 1-21-A5-000-000 Bosch Rexroth Indramat
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MPN: R901439034
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The Bosch Rexroth Indramat VT-MSPA 1-21-A5-000-000 is part of the VT-MSPA Drives series and has a maximum power consumption of under 48 W and operates at 24 V DC. The drive features 12 spring-type terminals for connections, provides IP20 protection, and is designed for vertical installation. It weighs 0.14 kg and supports a maximum cable length of 50 meters with a maximum solenoid current of 2.7 Amps.
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Product Description:
The VT-MSPA 1-21-A5-000-000 is a single-channel power amplifier card from the VT-MSPA Drives series manufactured by Bosch Rexroth Indramat. Installed inside control cabinets, the card modulates current for proportional solenoid valves so hydraulic or pneumatic actuators follow analog commands issued by a PLC. By converting low-level setpoint voltages into controlled coil excitation, it supports repeatable pressure or force regulation in presses, molding machines, and automated assembly stations.
The amplifier operates from an input of 24 V DC, and its electronics limit steady consumption to <2 A, keeping 24 V bus capacity within common supply ratings. During modulation, the output stage can furnish up to 2.7 A to the solenoid, which sets the magnetic force available at the connected valve. Overall power draw stays below <48 W, which helps control heat inside sealed enclosures. A residual ripple tolerance of 2.5 Vpp maintains signal fidelity because an internal filter suppresses high-frequency noise. Field wiring may extend 50 m when 1.5 mm² conductors are used, and twelve spring-type terminals permit tool-free hookup. A 3.15 A time-lag external fuse safeguards the feed, vertical installation aids convection cooling, and the board remains suitable for use up to 2000 m altitude while weighing only 0.14 kg.
Regulation is available within <1 s of power-up, and inrush demand is held to <4 A, allowing standard miniature breakers to be used. The command input presents a high impedance of 200 kΩ, so sensor cards are not loaded, while the output stage expects at least 1000 Ω of coil resistance to avoid saturation. Cabinet-grade IP20 protection shields fingers from live parts but requires the unit to be housed in a clean enclosure. Cable length, fuse selection, and installation altitude should stay within the stated limits when the card is mounted with other motion-control modules in the same enclosure.
Frequently Asked Questions about VT-MSPA 1-21-A5-000-000:
Q: What is the required operating voltage for the VT-MSPA 1-21-A5-000-000 drive?
A: The VT-MSPA 1-21-A5-000-000 drive operates with an input voltage of 24 V DC.
Q: How many connection terminals does the VT-MSPA 1-21-A5-000-000 provide?
A: Up to 12 spring-type terminals are available for connection on this drive.
Q: What is the maximum solenoid current output of the VT-MSPA 1-21-A5-000-000?
A: This drive supports a maximum solenoid current of 2.7 A.
Q: What protection rating is provided on the VT-MSPA 1-21-A5-000-000?
A: The VT-MSPA 1-21-A5-000-000 features IP20 protection class for its enclosure.
Q: What is the recommended installation position for the VT-MSPA 1-21-A5-000-000?
A: The installation of this drive is designated to be in a vertical position.
