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> Drives & Soft Starters > AC Variable Frequency Drives (VFD) > Micro VFDs

In Depth

IronHorse ES1 Series AC Drives

The IronHorse ES1 series AC drives offer simple AC speed control using simple hardware configuration. No parameters or software is required.

Starting at $214.00

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IronHorse ES1 Series AC Drive Features

Dual voltage input (115 or 230VAC)
Supports ¼-2 hp, 230 VAC three-phase output (3A and 6A output models)
NEMA 4X enclosure (open chassis models also available)
8 kHz switching frequency
0-120Hz output
0-5 VDC follower input

FWD-REV remote contact input
Models with FWD-REV switch built in
Run enable input
(Holding) brake input
Power and error LED
Volts/Hz control

Simple wiring gets you up and running within moments!

Trimpot Adjustments

No time to learn parameters and software? No problem! Use a small screwdriver, set the trimpots, and the drive is configured and ready to go!

MIN speed
MAX speed
Current limit
Acceleration
Deceleration
Boost (startup)
Brake (DC inject)

Accessories

AC Line Reactors

Line reactors are an option to protect and optimize any AC drive and motor installation. Input line reactors provide many benefits to AC drives, including less nuisance tripping, reduced drive downtime, improved power factor, increased drive life, and sensitive equipment protection. When used on the load side between the AC drive and the motor, reactors decrease voltage spikes between the motor and drive, increasing the reliability and longevity of both. Recommended for load-side applications with wiring lengths of 100 feet or less.

Voltage support of 120 VAC and 230 VAC single-phase; 230, 460, and 575 VAC three-phase
Sizes up to 361 Amps

VFD Output Filters

VTF series output (dV/dt) filters provide protection against harmful reflected waves between the VFD output and AC motor. These are recommended for any application when motor protection is critical or for any motor wiring distance from 100-1,000 feet. The filters ensure voltage spikes are limited to below 1,000 V.

Output filters also provide other benefits, such as reduced motor heating, increased motor bearing life, and reduced common mode current.

Voltage support of 208-600 VAC
Sizes up to 362 Amps
NEMA1 versions available for mounting outside of the panel

GS Brake Resistors

Brake resistors are used to increase the braking torque of the AC drive, for frequently repeated ON-OFF cycles of the AC drive, or for decelerating a load with large inertia. Brake resistors are compatible with various AC drives (check specifications for selection).

Available power ratings from 80 W to 9.6 kW
Resistance ratings from 3.3 to 750 Ohms
Available in encapsulated, panel mount, and in a NEMA 1 enclosure with temperature switch

CROHM Brake Resistors

CROHM brake resistors are designed and manufactured in the USA with ISO 9001 certification. They can be used with any AC drive up to 600 V (check specifications for selection). These resistors come enclosed in a NEMA 1 enclosure and include a built in temperature switch.