LEESON Electric Corporation  

DC Controls SCR Series

General Specifications:
LEESON DC SCR Controls | 90 180v NEMA 4x SRC Manual
These are General Purpose drives designed for use with Permanent Magnet or Shunt wound DC motors. NEMA 1 enclosed drives are suitable for most industrial applications. The NEMA 4X controls are best suited for washdown or outdoor installations or for extremely dusty applications. Chassis only drives are available for building into equipment, machinery or existing enclosures. Most controls have a dual voltage switch allowing the control to be used with either 115 volt or 230 volt, single-phase, input power at either 50 or 60 Hz service. It is important that the proper voltage motor be selected to use with the available power supply.
Regenerative Controls Manual 175720-21 Regendrives
(four quadrant) are available in NEMA 4X enclosures and are typically used where more precise motion control is needed.  These controls also produce both motoring and braking torque regulation.
Dual Mode Dual Speed Controls
are designed to run two DC motors at the same time in either independent mode or Slave/Master mode.
Available ratings:
Enclosure Type Description Output Amps HP Range 115 Volt HP Range 230 Volt
NEMA 1 Non-reversing 10 1/8-1 1/4-2
NEMA 1 Reversing with Dynamic Braking 10 1/8-1 1/4-2
NEMA 4X Non-reversing 10 1/4-1 1/4-2
NEMA 4X Non-reversing with Signal Follower 10 1/4-1 1/4-2
NEMA 4X Reversing 10 1/4-1 1/4-2
NEMA 4X Non-reversing 15   3.0
Chassis Non-reversing 10 1/8-1 1/4-2
Regenerative Type
NEMA 4X Four Quadrant 10 1/4-1 1/2-2
Chassis Four Quadrant 10 1/4-1 1/2-2
Dual Mode     Dual Speed
Chassis Dual Motors-Dual Voltage 10 1 2

Note!  Available Heat sink is required when the motor’s amp draw exceeds 5 amps

Catalog Pages -
DC Controls – SCR Series