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Hydran* M2-X Instruction Manual
D-8. Alarm Contacts Terminal Block
The Hydran M2-X is equipped with five SPDT (single pole double throw) alarm
relays. The alarm contacts of these relays are located on the left side of the
electronic card cage (see Figure D-15 on the next page). The connections are
described in Table D - 5.
The recommended alarm cable has multi-stranded copper, 600-V multi-
conductors, as well as an inner shield, a steel armor and a PVC overall jacket.
MA-029
Rev. 1.0, 30-Jul-18
Five (5) alarm relays
Software configurable
SPDT (Form C) contacts:
1. Normally Open
2. Common
3. Normally closed
Figure D - 14: Wiring of the Alarm Contacts Terminal Block
Page 177
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