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
No comments:
Post a Comment