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Watlow's series of Class 2, low-profile DIN rail-mount power supplies, only 2.2 inches deep, are ideal for shallow enclosure installations commonly used in building automation and security applications.

The DSP series supplies are available with nominal outputs from 20 to 28 volts and power levels ranging from 31 to 91 watts in three package sizes. Load regulation is less than 1 percent from no load to full load, with ripple and noise below 50 millivolts. To compensate for cable voltage drops, output voltage can be adjusted from the front panel and colored LED indicators immediately confirm the output status.


Description:  UL Class 2 power supplies for controllers that require DC power
Mounting:  DIN-rail or chassis mount
Max Output:  24V (30W, 60W, 90W)
Ambient Operating Range:  -25 to 71°C  (-13 to 160°F)
Agency Approvals:  UL® 1310 Class 2
Dimensions:  2.09 x 3.58 x 2.19 in.; 2.8 x 3.58 x 2.19 in.; 3.54 x 3.58 x 2.19 in.
Warranty (years):  2
Note: The specifications in the table above are best available values in each category. Not all combinations of these values are available in a single model number.

Features & Benefits:

Features Benefits
Low 2.2 Inch Profile
  • Fits into wall mounted cabinets
Wide Range AC
  • Enables global use with no input selector switches
Convection cooled
  • Eliminates the need for a system fan
Class II Double Insulation
  • Offers impeccable protection
DIN-rail or Chassis Mount
  • Adapts easily to different mounting configurations
Adjustable Voltage Output
  • Fine tune output voltage from 24 to 28VDC

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Power Supplies
Power Supplies