Manual Shutoff Switch (Option -SW)

    Key Features

  • » 
    Manually shut down equipment in an emergency situation
  • » 
    Manually control the ventilation system
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    Safety lock mechanism prevents operating errors
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    Finger protection mechanism
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    Push-lock, turn-reset feature
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    Meets B52 code requirements (when Option-L is installed as well)
  • » 
    RoHS Compliant
The Manual Shutoff Switch is a factory installed option that is available at the time of order for QCC models. The emergency stop, push button switch allows a person to manually control equipment in the event of an emergency. It is ideal for applications that require emergency electrical shutdown or ventilation purge. When combined with the Top Mounted Strobe, the device meets B52 code requirements for refrigeration applications.
The mechanism comes with one NC (normally closed) switch block. Normally closed is the reset / ready position.
NOTE: The metal guard will not fit over a QCC that has a Manual Shutoff Switch installed.


  • » 
    Refrigeration Compressor Rooms
  • » 
    Food Processing Plants
  • » 
    Cold Storage Rooms



Size: 40 mm (1.57”) diameter
Actuator Type:
Round button, mushroom


(setting and resetting once = one operation)
Mechanical: 300,000 operations min.
Electrical: 300,000 operations min.
Mode of Operation: 1 NC contact, in reset position
Switch Function: ON-OFF
Features: Push-Lock, Turn-Reset


Dielectric Strength:
Between terminals of same polarity and 
Between each terminal and ground:
2,500 VAC, 50/60 Hz for 1 min
Circuit: SPST-NC
Current Rating: 10A (AC/DC)
Voltage Rating: 110 VAC, 24 VDC

Input / Output

User Interface


Operating Temperature:
-40°C to 70°C (-40°F to 158°F)
(with no icing or condensation)
Operating Humidity: 35% to 85%



Conforms to: CSA-C22.2 No. 14, UL508

Conforms to: EN60947-5-1, EN60947-5-5

IP65 (oil-resistant)

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Product Specifications

Application Brochures



Sensor Specification

Engineering Specification Samples


Operation Manual

Part Numbers

Description Code
Manual Shutoff Switch (for emergency electrical shutdown, ventilation purge and to meet B52 code requirements)  SW

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