Dart Controls 251G-12E-4X-29 - SCR DRIVE NEMA 4X 1/8HP REVERSING ADJ ACCEL
Dart Controls

251G-12E-4X-29


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Overview

The Dart Controls 251G-12E-4X-29 is a compact SCR drive designed for precise DC motor speed control in industrial environments. Rated for 1/8 horsepower, this unit operates on 120VAC or 240VAC input power with a 90VDC output, making it suitable for small DC motors requiring reliable speed regulation. The drive features a NEMA 4X enclosure with IP4X protection, ensuring resistance to water and dust ingress for washdown or dusty applications. It supports reversible operation and adjustable acceleration, allowing for tailored motor performance in conveyor systems, packaging machinery, and material handling equipment. The cast aluminum construction provides durability, while the logical layout simplifies installation and adjustment. With a compact footprint and straightforward terminal connections, the 251G-12E-4X-29 is an economical solution for applications demanding precise speed control in harsh or exposed environments.
  • 1/8HP DC motor control with 90VDC output
  • NEMA 4X and IP4X rated for water and dust resistance
  • Reversible operation for bidirectional motor control
  • Adjustable acceleration for tailored motor performance
  • 120VAC/240VAC input power compatibility
  • Cast aluminum enclosure for durability
  • Compact design with straightforward installation

Specifications

Ip Rating
IP4X
Nema Rating
Type 4X
Series
251G
NEMA4X DC SCR CONTROL, DUAL VOLTAGE 120/90 0 240/180 TO 1/4HP

153D-25E

NEMA4X DC SCR CONTROL, DUAL VOLTAGE 120/90 0 240/180 TO 1/4HP
SCR DRIVE NEMA 4X 1/8-2HP 4-20mA FOLLOWER AUTO MAN

253G-200E-4X-7

SCR DRIVE NEMA 4X 1/8-2HP 4-20mA FOLLOWER AUTO MAN
NEMA4X DC SCR CONTROL, DUAL VOLTAGE, DIGITAL PROGRAMMABLE POT, 2HP

153D-200E-PB

NEMA4X DC SCR CONTROL, DUAL VOLTAGE, DIGITAL PROGRAMMABLE POT, 2HP
NEMA4X DC SCR CONTROL, DUAL VOLTAGE 120/90 0 240/180 TO 1/4HP, REVERSING

153D-25E-29

NEMA4X DC SCR CONTROL, DUAL VOLTAGE 120/90 0 240/180 TO 1/4HP, REVERSING
NEMA4X DC SCR CONTROL, DUAL VOLTAGE, DIGITAL PROGRAMMABLE POT, 1/4HP

153D-25E-PB

NEMA4X DC SCR CONTROL, DUAL VOLTAGE, DIGITAL PROGRAMMABLE POT, 1/4HP
NEMA 4X VFD 1 PHASE 110-240VAC SUPPLY, 230V 3 PHASE OUTPUT 3.2A, REV SW IN COVER

VF-100E-R-29

NEMA 4X VFD 1 PHASE 110-240VAC SUPPLY, 230V 3 PHASE OUTPUT 3.2A, REV SW IN COVER
SCR DRIVE NEMA 4X 1/8-2HP ADJ ACCEL

253G-200E-4X

SCR DRIVE NEMA 4X 1/8-2HP ADJ ACCEL
DC DRIVE NEMA 4X WHITE 1/8-2HP REVERSING RUN JOG

125DV200EW-29-4

DC DRIVE NEMA 4X WHITE 1/8-2HP REVERSING RUN JOG
DC DRIVE NEMA 4X WHITE 1/8-2HP

125DV200EW

DC DRIVE NEMA 4X WHITE 1/8-2HP
DC DRIVE NEMA 4X BLACK 1/8-2HP REVERSING RUN JOG

125DV200EB-29-4

DC DRIVE NEMA 4X BLACK 1/8-2HP REVERSING RUN JOG
DC DRIVE NEMA 4X BLACK 1/8-2HP REVERSING ISO SIG FOLLOWER

125DV200EB-29-56H

DC DRIVE NEMA 4X BLACK 1/8-2HP REVERSING ISO SIG FOLLOWER
NEMA 4X PWM DC DRIVE 12-48VDC 10A

65E10E

NEMA 4X PWM DC DRIVE 12-48VDC 10A

Frequently Asked Questions about Dart Controls

What certifications and standards do Dart Controls products comply with?

Dart Controls products are certified to multiple international standards across electrical, safety, and environmental domains. Key certifications include UL (cULus), CE, UKCA, EAC, and C-Tick, with compliance to standards such as ISO 9001, RoHS, EN 60529, IEC 61800-9-2, and various functional safety standards like EN 61800-5-2 and EN ISO 13849-1. Their products meet rigorous industrial automation requirements for electrical equipment, environmental protection, and safety-related control systems.

What industries and applications are Dart Controls products used for?

Dart Controls products are used across multiple industrial sectors, with key applications including conveyors, pizza oven equipment, door closing mechanisms, and controls for fractional DC motors, brushless DC gear motors, and low voltage DC motors. Their SCR drives and motor controls serve OEMs, automation integrators, end users, and control specialists in industries requiring precise DC motor speed and motion control.

What technical support does Dart Controls offer?

Dart Controls offers comprehensive technical support through their direct phone line at (317) 873-5211. Their support includes personalized customer service, technical consultation, and assistance with product selection and application. As a 'Total Solutions Provider', they are committed to delivering second-to-none support and assistance, with a focus on helping customers find the right variable speed motor control solutions for their specific needs.

What are the main product lines offered by Dart Controls?

Dart Controls offers a comprehensive range of motor control products including AC Variable Frequency Drives (EZ VFD Series), AC Triac Variable Voltage Supplies, Digital Speed Pots, Analog SCR Drives (multiple series including 150, 125, 15, 130, 253, and 530 Series), Digital SCR Drives, Commutrol Brushless DC Drives, Low Voltage DC PWM Drives, and Speed Sensors. Their product lines are designed to provide flexible motor control solutions for various industrial applications, with options ranging from chassis to NEMA 4X enclosed configurations.

What are the key features of Dart Controls products?

Dart Controls offers a comprehensive range of innovative motor control products featuring advanced digital and analog SCR drives, digital speed potentiometers, and specialized drive solutions. Key features include flexible product configurations like the 150 Series SCR drive with multiple wiring terminations, fusing options, and IP66/NEMA4X enclosures, as well as unique digital drives like the MicroDrive with integrated programmable displays, closed-loop control, and multiple operational modes for diverse industrial applications.

How are Dart Controls products typically installed?

Dart Controls products are typically installed using panel-mount or standalone enclosed configurations, with flexible mounting options to suit various industrial applications. Most product lines like the EZ VFD, Digital SCR Drives, and Analog SCR Drives offer both open chassis and NEMA 4X enclosed models, allowing for easy integration into control panels or direct machine mounting. Installation typically involves connecting power inputs, motor outputs, and optional control signals like voltage followers or serial communication interfaces.

What communication protocols do Dart Controls products support?

Dart Controls supports multiple communication protocols, with Modbus RTU serial interface being a key offering for the 150 Series. Their products are designed to interface with PLCs, microcontrollers, computers, and HMIs through traditional analog signals and increasingly through serial network communication. While specific protocol support may vary by product line, Dart Controls demonstrates flexibility in communication integration for industrial automation applications.

What environmental ratings do Dart Controls products have?

Dart Controls offers multiple environmental ratings across their product lines, primarily NEMA 1, 2, 3R, 4, and 4X enclosure types. Most standard models like DS20, DS30, DR30, and DR50 come standard with NEMA 3R protection, with optional NEMA 4X upgrades available. Specific product lines feature different ratings, ensuring protection against dust, water, and corrosive environments for both indoor and outdoor applications.

What accessories are available for Dart Controls products?

Dart Controls offers several key accessories for their products, including speed sensors, LED support, and switch options. The PU Series speed sensors are particularly notable, with indoor (PU-E) and outdoor/wash down (PU-R) models available. Additional sensor options include the CF Series (hall-effect motor C-face mount) and OPU (optical) sensors. Some product lines also feature accessories like a -29 covered mounted FWD/Off/REV switch, LED chassis support, and various mounting configurations including open chassis (C) and NEMA 4X enclosed (E) options.