Autoset-VFD Current Switch

Higher Reliability, Faster Installation, Superior Accuracy | Sense the Difference
Self-calibrating for proof of flow
Works flawlessly on VFDs and constant volume applcations
0.5-135A range
N.O. 30VAC/DC output
Optional command relay with LED

  • Self-calibration for proof of flow on both VFD and contstant volume (CV) fans and pump applications
  • Works without costly 'training' of sensor - our sensors are just plain smarter!
  • No need to open energized enclosures - save on labor as well as improves safety
  • Only sensor line capable of functioning on VFDs to 0.5A
  • Sensor is always properly adjusted—no call backs
  • Push-button and LED for fast learn and go/no modes
  • Optional command relay for stop/start/status in unitary device—saves component and installation space/cost
  • Solid-state-more reliable than mechanical pressure switches for proof of flow
  • Quality backed by 7 year limited warranty!

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The AutoSet™ VFD self-calibrates to detect proof of flow on both variable frequency driven and constant volume motors on fans or pumps. The C-2350VFD automatically sets the proper threshold, eliminating false alarms associated with varying frequencies. Detects motor undercurrent conditions such as belt loss, coupling shear, and mechanical failure on fans and pumps while reducing installation time. New super-low 0.5A turn-on--totally self-powered!

  • Detecting belt loss, coupling shear, and mechanical failure on variable frequency drives and constant volume fans and pumps.
  • Great for data center current switch sensing

Split Core

Min (on)

Max A

Output*

Sensor Power

C-2350VFD

0.5A

135A

1.0A@30VAC/DC

Induced

Command Relay

Contact rating

Coil

CR3-24

N.O. 10A@125VAC

24VAC/DC, 15mA nom.

CR4-24

N.C. 10A@125VAC

24VAC/DC, 15mA nom.

CR3-12

N.O. 10A@125VAC

9-12VDC, 30mA nom.

CR4-12

N.C. 10A@125VAC

9-12VDC, 30mA nom.

Specifications

Standard Output Rating

1.0A@30VAC/DC

Output Type

NO, solid-state FET

Turn-On Amperage

1A(30Hz min), 1.5A(20Hz min), 2.5A(10Hz min)

Environmental Rating

5-140 °F (-15-60 ° C)
10-90% RH Non-Condensing

Insulation Class

600V RMS. For use on insulated conductors only! Use minimum 75 ° C insulated conductor

Frequency Range

10 -120Hz; proof of flow loss alarm at 40Hz+

Dimensions (LxWxH)

2.51"x 2.23"x 0.82" (1.4"H with optional relay module)

Sensor Aperture

0.75"

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