Wiring a Circuit Breaker Remote Trip

Warning:  If powering an expansion board it should be at the same Voltage as the WatchMon.

Warning:  For large (or unknown) loads make sure you use an external relay / SSR (solid state relays) that is appropriate for the rated purpose.

Options for Wiring include

1. Wiring to WatchMonCORE onboard Relay A
2. Wiring to Expansion 3 board Relay 1, 2 or 3
3. Wiring to Expansion 3 board Solid State Relays 4, 5 or 6
4. Wiring to Expansion 2 board Relay 1 or 2
5. Wiring to Expansion 2 board Solid State Relays 3 or 4
6. Wiring to WatchMon 4 or WatchMonPlus onboard Mosfets A or B (5pin) NOT RECOMMENDED
7. Wiring to WatchMon 4.2 or WatchMonPlus or earlier onboard Mosfets A or B (4pin) NOT RECOMMENDED

Note: Below diagrams apply to WatchMon 1, WatchMon 4, WatchMonCORE and WatchMonPlus

Limitations

With a 48V circuit breaker an external relay appropriately sized,  Mosfets that can handle 48V on either the WatchMon or Expansion 2 or Expansion 3 Solid State Relays 60V / 5A can be used.  

The Mechanical Relays on Expansion 2 and Expansion 3 are rated to 30V / 5A only

Expansion board if powered should be at the same voltage as the WatchMon

1.  Wiring to WatchMonCORE Onboard Relay A

Note: Relay 1 and Relay 2 are mechanical and rated to 30V / 5A

2.  Wiring to Expansion 3 Board, Relay 1, 2 or 3

Note: Relay 1, 2 and 3 are mechanical and rated to 30V / 5A

3.  Wiring to Expansion 3 Board Solid State Relays 5, 6 and 7

Note: Relay 5, 6 and 7 are Solid State Relays and hence rated to 60V / 5A

4.  Wiring to Expansion2, Relay1 or Relay2

 Note: Relay 1 and Relay 2 are mechanical and hence rated to 30V/5A

5.  Wiring to Expansion2 Board, Solid State Relays 3 or 4

Note: Relay 3 and Relay 4 are Solid State Relays and hence rated to 60V / 5A

6.  Common Positive Sense Schneider Electric Circuit Breaker to On-Board WatchMon - pin 5

NOT RECOMMENDED

Note:  Mosfets are used for onboard outputs on WM 4 / 5 / 7.  The 5 pin output version includes a Output P for Power and this is attached to the Positive.

Warning:  Mosfets should only be used with items of known in-rush within the rating of the mosfet.  If unsure please use a relay.

7.  Common Positive Sense Schneider Electric Circuit Breaker to On-Board WatchMon - pin 4

NOT RECOMMENDED

Note:  Mosfets are used for onboard outputs on WM 4 / 5 / 7.  The 4 pin output version doesn't include a Output P for therefore the battery Positive is used.

Warning:  Mosfets should only be used with items of known inrush within the rating of the mosfet.  If unsure please use a relay.

Set Expansion Settings

Set Output to Critical Pulse OFF so that if in Critical state it will get a 2000ms pulse sent when Critical State turns to OFF used to trigger Circuit Breakers

If using a sensing input the input should be set to Critical contact sensor.