All the Bells and Whistles for Remote Operation

We supply operator-friendly control systems, from simple pendant contols to complete computerized networks involving the most complicated variable speed drives. From start to finish, our in-house UL-rated panel shop gives us outstanding quality control. We also provide installation and start-up support.

Electric Drum Control Switches

Single Speed Reversing Drum Controls for 1 and 3 phase motors up to 7.5 hp

UL and CSA Recognized components throughout.

Enclosures to suit your application needs. NEMA 1 (industrial) rated switches provide protection against dirt and corrosion for most indoor applications. NEMA 4 (watertight) rated switches keep dirt and water out, and are approved for most outdoor applications.

Wiring Diagram is supplied inside the enclosure for convenient reference.

Switches for 115 volt single phase motors up to 1 hp, include 8 ft power cord with grounded plug.

2-year Limited Warranty - view warranty

Thern products are not for lifting people, or things over people.

Selected Models

	Drum Control Switch NEMA 1 single speed reversing drum control Tech Data

	Watertight Drum Control Switch NEMA 4 single speed reversing drum control Tech Data

Electric Motor Controls

Single Speed Reversing Magnetic Controls for 1 and 3 phase motors up to 60 hp

UL, IEC, or CSA Recognized components throughout.

Steel Enclosure NEMA 4 rated (watertight) keeps dirt and water out. Approved for most outdoor applications.

Pendant Control Switch NEMA 4X rated (watertight), on 50 foot cord, allows operator to stand away from winch during operation. Pendant control is operated with momentary contact-type push buttons. Cord lengths of less than 50 feet are available, please specify when ordering.

Reversing Contactor is electrically and mechanically interlocked to deliver smooth reversing control.

Thermal Overload Relay trips power OFF to protect motor from overheating. Switch is manually reset.

Fused Control Circuit powers pendant with 115 volt, 2 amp current to help protect against high voltage shocks.

Wiring Diagram is supplied inside enclosure.

Steel Mounting Bracket secures control box to winch.

Options include special current or horsepower ratings, special rated enclosures for explosive or harsh environments, multi-speed controls, torque limiting controls, power cord disconnects, and various selector switches and pilot lights.

2-year Limited Warranty - view warranty

Thern products are not for lifting people, or things over people.

Selected Models

Electrical Control Panel
Special Control Panel shown
For simultaneous remote operation of 8 power winches

Tech Data

Variable Frequency Drives

Variable Frequency Drive controls are available to provide accurate positioning of loads, soft starts and soft stops, and overload protection.

For 3 phase 230 VAC and 460 VAC motors from 1 to 5 hp.

For 3 phase 230 VAC motors from 1 to 30 hp.

For 3 phase 460 VAC motors from 1 to 60 hp.

2-year Limited Warranty - view warranty

Thern products are not for lifting people, or things over people.

Selected Models

	Variable Speed Drive For variable speed control of large power winch system Tech Data

	Variable Speed Control Panel For joystick operation of large power winch system Tech Data

Thern, Inc. • 5712 Industrial Park Road • PO Box 347 • Winona, MN 55987
507.454.2996 • 1.800.843.7648 • fax: 507.454.5282 • info@thern.com
Copyright © 2009 Thern, Inc. All rights reserved. • Thern Terms and Conditions