Dayton
Dayton 4Z829 DC speed control 0-90/180 V enclosed
Enclosed DC speed control delivers 0-90/180V output with 50:1 range and reversible rotation
- ColorTransparent
- Reversible motor rotation with FWD/STOP/REV external switch
- 50:1 speed range covers 0 to 90/180 V DC output
- NEMA 4X enclosed housing protects internal SCR circuitry
- Dual AC input accepts 120 or 240 V supply
- Auto/Manual and ON/OFF switches give local control
DC Speed Control for 1/8–1 hp motors
The Dayton 4Z829 provides variable DC output from 0 to 90 or 180 volts for permanent-magnet or shunt-wound motors rated between one-eighth and one horsepower. It accepts 120 or 240 volt AC input and delivers a 50:1 speed range with reversible rotation. The NEMA 4X enclosure suits indoor or outdoor industrial environments.
Practical limits of SCR drive
Silicon-controlled rectifier regulation means output voltage varies with load and line conditions, so precision positioning is not possible. The 50:1 range covers most conveyor and pump duties, but very low-speed torque drops off below roughly ten percent of base speed. Single-phase AC input restricts use to standard mains supplies; three-phase systems need a different controller.
Enclosure mounting and wiring checks
The transparent NEMA 4X case mounts on a flat surface with four screws; drill pattern is not supplied, so verify hole centres before cutting. Wire the AUTO/MAN, FWD/STOP/REV and ON/OFF switches exactly as labelled — reversed polarity on the armature leads causes immediate fault. Seal all cable glands to maintain the ingress rating.
Highlights
- Reversible motor rotation with FWD/STOP/REV external switch
- 50:1 speed range covers 0 to 90/180 V DC output
- NEMA 4X enclosed housing protects internal SCR circuitry
- Dual AC input accepts 120 or 240 V supply
- Auto/Manual and ON/OFF switches give local control
Specifications
| Brand | DAYTON |
|---|---|
| Color | Transparent |
Questions about this item
Should I select the 90 V or 180 V output range for my motor?
Choose the 90 V range for motors rated up to 90 V DC and the 180 V range for motors rated up to 180 V DC; the control covers both ranges.
What does the 50:1 speed range mean when the unit is installed?
It means the motor speed can be adjusted across a fifty-to-one ratio from minimum to maximum setting.
The controller accepts 120/240 V AC input — what voltage does that limit on the DC output side?
The AC input is rectified internally to provide a 0 to 90 V or 0 to 180 V DC output depending on the range selected.
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