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Eaton/Moeller
AT0-11-120AFT-ZBZ/X
Mechanical Interlock Switch

Spring-power activated
interlock switch
(power required to deactivate interlock)
• with interlock monitoring and auxiliary release mechanism
• monitoring of door position: continuous

Contacts

Voltage

Contact Sequence
Normally
Open		 Normally
Closed
1 1 120 V 50/60 Hz
AT0..-ZBZ

Actuators for combination with the AT0...-ZBZ/X basic units

G-ZBZ

W-ZBZ

F-ZBZ

 FG-ZBZ NG-ZBZ NW-ZBZ
AT0-11-120AFT-ZBZ/X Moeller G-ZBZ Moeller W-ZBZ Moeller F-ZBZ Moeller FG-ZBZ Moeller NG-ZBZ Moeller NW-ZBZ
Straight actuator for sliding doors Angled actuator for swing doors
≥ 250 mm width		 Angled flexible actuator for doors
which do not close precisely		 Straight flexible actuator for doors
which do not close precisely		 Straight actuator with overlap,
with increased tolerance in the direction of closing
 		 Angled actuator with overlap,
with increased tolerance in the direction of closing
 


The operating head can be turned manually in
90 ° stages to match the specified plane of
actuation.


The spring-powered AT0-..-...FT-ZBZ is equipped
with a release mechanism which can be accessed
with a screwdriver to deactivate the interlock in
the event of a power loss (e.g. during start-up).
This auxiliary release mechanism must be sealed
during normal operation!
For degree of protection IP 65, use cable gland M20 with a maximum connection
thread length of 9.5mm (V-M20)

AT0-...-ZBZ/X, Dimensions and Data
View PDF
Interlock Activated Interlock Deactivated Door Open

 
Door closed and interlocked Requires no power: interlock also remains active under power loss or wire breakage Interlocked door = safe state N.C. enabling contact 21-22 is closed and allows an operation e.g. machine run, to start
To release door (deactivate interlock) Apply voltage to the coil (A1, A2), e.g. from a motion detector. The N.C. enabling contact 21-22 opens. The N.C. door monitoring contact 11-12 remains closed as long as the door remains closed.
Opening the door Only possible once it is released. The N.C. door monitoring contact 11-12 opens to indicate the open door.
Re-closing the door Both contacts are blocked open, even where attempts are made to tamper using basic tools
To interlock door Triple-coded actuator removes the block on the N.C. enabling contact 21-22. The N.C. door monitoring contact 11-12 re-closes.

Remove voltage from coil:
1. Actuator is locked in.
2. The N.C. enabling contact 21-22 closes.

The enabling contact can only close when the door is interlocked
 

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