Best Variable Voltage

PRINCE CASTLE Drive Motor Assembly 87-028AS

ATO 110v vfd, single phase 110v/120v input, single phase or three phase 220v output, achieve to run 220v AC motor on single phase 110v/120v power supply.
【Voltage& Frequency】Input voltage: 1 phase 120V AC ±15%, Input frequency: 50Hz/60Hz,Output voltage: 1 phase or 3 phase 220V AC ±15%, Output frequency: 0.00~400.00Hz.
【APPLICATION】ATO 7.5 hp 5.5kW variable frequency drive Can be widely applied to drive the AC motor, such as fans, pumps, power tools, etc.
【TIPS】 To protect the variable frequency drive and Motor, you need an upstream protection, add a line-choke upstream the VFD, this will reduce the current transients seen by the input of the VFD.
【CUSTOMER FIRST】If you have no experience in driving a VFD, be sure to refer to the instructions before operating a VFD.If you are not sure about the size or have any issue about the product or service, please don't hesitate to email us. We will answer you within 12h.

- Adjustable transformer, Max.500VA, Input Voltage: AC 110V/60Hz, Output Voltage(Variable): AC 0-130V/60Hz.
- Replaceable 5A Fuses (Extra 4 for replacement), Overload Protection, with Output Voltmeter.
- Built-in copper coil, material quality, more secure and durable. The Core Components of the Transformer Are Made of Environmentally Friendly....
- What You Get: A 500VA Variable Transformer with U.S. Standard Plug, 4 Extern Replaceable 5A Fuses, A Manual..
- Suit for Motor Speed control, Label Printing Machine, EE Labs, Test for Railroad Switching, Power Supplies, Satellite, Equipment, Telecommunication....

6 Channel 7-Band High Performance Car Audio 1/2 DIN Pre-Amp Electronic Equalizer.
Featuring 2 (Balanced & Selectable) RCA Inputs – Main and Auxiliary (Aux w/ Variable Gain Control) | THD: 0.005%.
High Voltage (Max Output Voltage – 7V) Gold Plated Pre-Amp RCA Outputs – Front, Rear, and Subwoofer (with Variable Subwoofer Level Control on Front of EQ).
7 Fully Adjustable -12 dB to +12 dB EQ Bands (50 Hz, 125 Hz, 320 Hz, 750 Hz, 2.2 kHz, 6 kHz, 16 kHz) with Built-in Fader Control.
Take Full Control Over Your Car Audio System with this EQ | Signal-to-Noise Ratio: 100 dB, Low Pass Frequency Switch: 60 Hz / 120 Hz.
Includes Installation Mounting Brackets and Hardware | 20 dB Headroom Eliminated Signal Overload.

Converts AC to DC: features AC to DC power supply Variable linear/ regulated design. Provides convenient and reliable AC-to-DC Power conversion W/ constant source of DC voltage. Works w/ cellular phones, CB radio, scanner, ham radio, etc.
Usb and Screw-Type terminals: This workbench linear variable power supply features dual USB charge port and universal screw connection terminals compatible w/ a wide range of device/equipment. Used to test device/equipment operation and performance.
Plug-in operation: The simple plug-in operation provides a constant source of DC voltage, allowing for quick and consistent power conversion. Switch-activated power control eliminates the need for an external battery or additional power source.
Short-circuit protection: Equipped w/ built-in electronic overload and short circuit protection to ensure the safety of the operator and any connected electronics. Has rugged and durable housing construction safe for benchtop or desktop Placement.
Amp gauge and volt meter display: this DC bench power supply is equipped with rotary control for the adjustable powe....

Display voltage and amps concurrently with large LCD dual display.
True-RMS for accurate voltage measurements in noisy environments.
Low pass filter for current and voltage measurements on variable frequency drives.
Precise low current measurement down to 0.1 amp.
HVAC applications with temperature, DC micro-amps and capacitance.

40 Amp Continuous Rating, 100% Duty Cycle.
Voltage Control Knob has center detent at 13.5 VDC.
Overload & short-circuit protection with Current Foldback at approximately 42 Amp.
Meter Selector allows monitoring of voltage & current.