Monday 19 October 2015

Harsh-Duty Contact Block Solutions for Hazardous Locations from Rockwell Automation

The Allen-Bradley Bulletin 800TC-XAF Explosion-Protected Contact Block is a robust solution for Class I Div. 2 environments, especially for E-stop and high vibration applications where typical reed switch solutions are undesirable.

Emergency Stop Applications
The magnetically operated design of reed switches prevents their use with emergency stop devices. In contrast, the 800TC-XAF explosion-protected contact block features a positive-opening normally closed contact as required for conformance with global emergency stop standards. Additionally, the design allows contact block stacking which increases application flexibility and accommodates safety circuits for illuminated E-stop devices.

High Vibration Applications
Reed switches are hermetically sealed in a glass envelope, which can be fragile and susceptible to damage from stress related to high vibration. The body of the 800TC-XAF explosion-protected contact block is moulded from an extremely durable thermoplastic resin, resulting in a contact block assembly that will maintain Class I Div. 2 integrity in the harshest applications.

In addition to the explosive nature of flammable gases, liquids or vapours potentially present in Class I Div. 2 applications, these materials can also be highly corrosive.

Features and benefits:
  • A reliable UL 1203 certified solution for Class I Div. 2 environments (Groups A, B, C and D)
  • Rugged construction ideal for use in applications involving shock and vibration
  • 1-NO, 1-NC, A600-rated contacts
  • Positive opening NC contact for global E-stop functionality
  • For use with a wide range of push buttons:
    • 800T 30 mm Type 4, 13
    • 800H 30 mm Type 4, 4X, 13
    • 800H/HL Type 7 and 9
    • 800R stations
  • Compatible with a broad variety of device types:
    • Momentary contact push buttons
    • Trigger action E-stops
    • Push-pull devices
    • Selector switches
    • Push-to-test pilot lights
For more information please contact us at info@routeco.com or visit our website at www.routeco.com

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