Dietz 103B

DIETZ MODEL 103B SPECIFICATIONS

Adobe Acrobat Dietz 103B Technical Specifications (582KB PDF)


Mechanical
  • Airflow Ranges: 500–2,500 ft per minute
  • Switch Operating Range: 15°–20° of Operating Stroke
  • Release Airflow: Max 20% of Airflow Actuation Point (depending on orientation)
  • Mechanical Life: 1,000,000 Cycles
  • Temperature Range: +40–125°F
Physical
  • Housing Material: Plastic Dust Cover and Aluminum Mounting Bracket
  • Vane Material: Stainless Steel
  • Electrical Connection: 0.205" x 0.031" Terminals
  • Weight: .04 lbs
Electrical
  • Switch Type: SPDT Snap Action
  • Current Rating
    • 5 A 125/250 VAC
Construction
  • Snap action switch is enclosed in a plastic dust cover and fitted with aluminum mounting brackets
  • Vane and actuating lever wire are stainless steel
  • Aluminum parts anodized in accordance with MIL-A-8625 Class 2, Type 1
Installation
  • The switch is mounted directly on the air duct. Air stream can flow at any angle from horizontal (with vane in vertical position) to vertically up. When used for horizontal airflow, switch body must be facing upward. Note: Switch cannot be used in airflow projecting downward, and must be located away from ebbing air currents.

If you would like to provide information about your application requirements, please complete our Application Data Sheet »

DIETZ MODEL 103B

Vane Airflow Switch

The Model 103B is a simple, yet highly effective vane-operated device for detecting airflow. The switching element is a one piece beryllium copper snap action switch, enclosed in a plastic dust cover and fitted with aluminum mounting brackets. Mounted directly on an air duct, the switch actuates or deactuates when the vane is moved by the specified airflow velocity.

The Dietz Model 103B can be supplied with gold contacts for low voltage and current. The Model 103B-MF is treated to resist moisture and fungus.

FEATURES / BENEFITS

  • Vane-operated switch for airflow detection
  • Airflow ranges from 500–2,500 ft per min
  • Easy installation — mounts directly onto duct
  • Gold contacts option for low-current applications
  • Moisture & fungus resistance models available

APPLICATIONS

  • Forced air-cooled electronic equipment-guards against air failure due to:
    • Blocked air ducts
    • Dirty air filters or blocked cabinet louvers
    • Stalled blower motor
    • Blocked air intake or outlet
    • Loose blower wheel
    • Loose or ruptured flexible connecting tube between blower and tube support
    • Accidental phase reversal in three-phase motor supply line

Model Number

Part Number

Airflow Range

 

103B

D21560

500–2,500 ft per minute

 

103B-MF

D21561

500–2,500 ft per minute

*Mildew Resistant*