420S - Motor Control Fundamentals Training System

Product Dimensions
(L x W x H)
19in. x 19in. x 25in. (480 x 480 x 670 mm)
(Per Device)
50 lbs. (22.5 kg)
(Varies with Device)

Shipping Dimensions
(L x W x H)
20.75" x 23.5" x 30" (525 x 600 x 760 mm)
(Per Device)
85 lbs. (32.5 kg)
(Varies with Device)

This system of task-specific, motor control-related training devices facilitates hands-on training in the operational principles, wiring, fault troubleshooting and application of industrial motor control devices commonly encountered in industry. Each device is self-contained, allowing for study by a student or small student group independently.

In practice, individual training workstations are designed to be used sequentially, from most basic to the most challenging. In this way multiple workstations are used simultaneously, accommodating a larger student groups.

Each individual training module includes a welded aluminum base assembly, steel support structure and enclosure, tslotted motor mounting rails and an applicable motor with sub-base. The primary mounting structure and motor can be removed from the base assembly and integrated with compatible mechanical and electrical products.

All wiring is accomplished through shielded banana-jack connections on the front panel face, rather than directly to individual components. A minimum of four fault switches, creating simulated common component and circuit faults, are provided with each device for use in troubleshooting. Supplemental components such as a motor loading device and a piloting switch module can be added to expand the system’s capabilities. Redundant safety features include an instructor fault switch, system circuit breaker with lock-out/tag-out, E-stop, internal redundant grounding, enclosure killswich, and more.
Welded tubular aluminum base assemblies, using 1-1/2" square, 1/8" wall aluminum tubing.
Aluminum t-slotted mounting rails, allowing for attachment of on-board tethered motor and connection to associated devices.
16-Gauge, formed-steel support structure, allowing for attachment to base assembly or integrated with other devices using mounting bench products.
16-Gauge, formed-steel primary electrical enclosure.
High-durability powder-coated surfaces throughout.
Powder-coated and silk-screened 1/8" aluminum front panel face.
Keyed instructor power switch (Rear of all devices).
On-board circuit breaker with provision for representative lock-out/tag-out.
System pilot light and large emergency stop switch.
Industrial-duty 56-frame motors as applicable for each device.
Internal electrical safety interlock system, de-energizing power when opening electrical enclosure.
DIN rail-type electrical components, where applicable.
Color-coded, shielded banana-jack receptacles for all motor leads and control components.
Permanent internal grounding (not dependent on student wiring).
Four instructor fault switches (rear of all devices).
2-Year limited warranty
Use of UL and CE certified electrical components throughout.
Allows for attachment to optional control and mechanical devices directly using optional electro-mechanical integration bench products.
#410-001 - Portable digital multimeter.
#410-001E - Portable Multimeter, Economy
#410-002 - Non-Contact Tachometer.
#420-500 - Use/Exercise Guide (Additional)
#420-500C - Use/Exercise Guide (On Disc) (Additional)
#420-500D - Use/Exercise Guide (Via E-mail) (Additional)
#420-PAC - Motor Control Fundamentals Training, Quick-Start Package (includes: #420, #421, #422, #423, #424, #425, #426, (2) #428, (2) #410-001E)
#566-002 - Electrical Motor Controls (Additional)
#425 - Solid-State Motor Starter Trainer
#273-910 - Magnetic Motor Starter Cutaway
* Shielded Patch cords. (Quantity varies with device) * Use/Exercise Guide. * Electrical Trades Training Manual * Instructor and student wiring diagrams. * Related textbook (with purchase of four or more devices).
110 VAC - 240 VAC, 3-phase, based on individual product.
The courseware, useful in both an instructor-led or self-directed format, includes a textbook on motors and motor control, and twenty-one illustrated, hands-on exercises.

Exercises include:
- Introduction to motor control terminology. - Wiring the single-phase, singlepole switch manual starter as a motor controller. - Wiring the single-phase, doublepole switch manual starter as a motor controller. - Wiring the single-phase magnetic starter as a motor controller - Wiring the three-pole pushbutton manual starter as a motor controller. - Wiring the drum-type reversing switch manual starter as a motor controller. - Wiring the three-phase magnetic starter as a motor controller. - Wiring the three-phase magnetic starter with low voltage control circuit as a motor controller. - Wiring the solid-state motor starter. - Wiring the DC drive controller. - Motor control pilot devices; Wiring the time delay relay and the control relay. - Motor control pilot devices; wiring the limit switch, proximity switch, photoelectric switch, and pressure switch. - Introduction to motor controls troubleshooting. - Troubleshooting the singlephase manual starter motor controller. - Troubleshooting the single phase magnetic starter motor controller. - Troubleshooting the three-pole pushbutton manual starter motor controller. - Troubleshooting the drum-type reversing switch manual starter motor controller. - Troubleshooting the threephase magnetic starter motor controller. - Troubleshooting the threephase magnetic starter with low voltage control circuit. - Troubleshooting the solid-state motor controller. - Troubleshooting the DC drive controller.


These devices have been designed for professionals for use under controlled circumstances for training only. DAC assumes no liability for injury resulting from the use or misuse of this product.
Motor-driven rotating machines have inherent risks of injury. This device should be operated only in the company of professional training mentors or experienced industrial maintenance personnel.
In accordance with DAC’s established policy of continuous improvement, these specifications and product descriptions are subject to change without notice. This information is the latest technical information as of the time of viewing or printing.
This product includes multiple safety features, and suggested safety procedures, as there is potential for direct contact with energized AC circuits in use. Extreme care must be taken to follow written safety procedures carefully, and to ensure that no on-board safety components are tampered with by the user.