VT-NE31-16
VT-NE Power Supply Units
The VT-NE31-16 is a compact bipolar power supply unit built by Bosch Rexroth Indramat for the VT-NE Power Supply Units series. Designed for control cabinets where analog electronics require isolated rails, the module converts single-phase mains power into regulated positive and negative DC outputs that feed sensors, operational amplifiers, and servo-drive reference stages in automation equipment. Its bipolar architecture eliminates the need for separate positive and negative supplies, while its dimensions of 70 mm deep, 84 mm wide, and 119.5 mm high allow it to share limited cabinet space with I/O terminals, relays, and related control devices.
The input section accepts 115/230 VAC ±10% at an industrial line frequency of 50/60 Hz. Under full load, the supply can deliver a maximum current of 0.25 A to support low-power control and signal-processing circuits. When no load is connected, the stabilized output measures ±27 VDC, and the voltage settles to the rated levels after the connected circuitry begins drawing current. The positive rail supplies +24 VDC and is filtered to reduce high-frequency noise that could interfere with downstream analog stages. Dual-channel regulation gives both outputs a common reference while allowing independent filtering, and each channel supplies 6 W of continuous power for motion-control electronics, sensors, or PLC interface boards.
The primary side is protected by a 0.8 A slow-blow fuse that interrupts sustained overcurrent conditions while tolerating brief startup surges. Connection terminals accept conductors with cross-sectional areas of up to 4 mm², allowing standard control wiring to be attached securely without specialized terminal hardware. The negative rail maintains -24 VDC at full load, and the residual ripple remains below 5 percent to support stable analog reference signals for drive amplifiers. The metal enclosure has a total mass of 1.1 kg, allowing it to be mounted next to contactors and auxiliary supplies without placing excessive load on the supporting panel.
Technical Specifications
Depth
70 mm
Fuse
0.8 A slow-blow
Height
119.5 mm
Input Frequency
50/60 Hz
Input Voltage
115/230 VAC ±10%
Max Load Current
0.25 A
Max Wire Size
4 mm²
No-load Output
±27 VDC
Output 1 Voltage (Full load)
+24 VDC
Output 2 Voltage (Full load)
-24 VDC
Output configuration
Dual output, both filtered
Output Power
6 W (Output 1) / 6 W (Output 2)
Output Type
Bipolar
Product Type
Compact power supply unit, bipolar
Residual ripple content
< 5 %
Series
16
Weight
1.1 kg
Width
84 mm
Frequently Asked Questions
What input voltage does the VT-NE31-16 power supply support?
The VT-NE31-16 can accept input voltages of 115 or 230 VAC with a tolerance of ±10%.
What are the output voltages of the VT-NE31-16 power supply?
This unit provides two filtered outputs: +24 VDC and -24 VDC at full load.
What is the output power capability of the VT-NE31-16 power supply?
The maximum output power is 6 W per channel for both the positive and negative outputs.
What type of fuse does the VT-NE31-16 power supply use?
The VT-NE31-16 is equipped with a 0.8 A slow-blow fuse for protection.
What is the residual ripple content of the VT-NE31-16 outputs?
The residual ripple content on the outputs is less than 5%, helping maintain stable voltage levels.
Internal Product Review
The VT-NE31-16 is a compact bipolar power supply unit with dual filtered outputs and 115/230 VAC ±10% input capability. Stable bipolar regulation at +24 VDC and -24 VDC supports clean interfacing in electrohydraulic control circuits. Residual ripple below 5% makes the unit a strong choice for precise, noise-sensitive installations.
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the VT-NE31-16.
Exchange
Want to sell your VT-NE31-16?
