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This solutions guide illustrates the use of using two Shelly Pro 3EM energy meters paired with Shelly Switch Add-on modules and 63 amp contactors. This solution enables users to meter and control two 240v appliances. The enclosure can be installed on the panel, or either inline or at the appliances if located together.
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The Shelly Pro 3EM Switch Add-on module allows the 3EM to trigger contactor coils rated up to 2 amps.
Notes
10 10 AWG gauge wire is used for the contactors. The terminal blocks selected support up to 6 AWG. A larger wire gauge requires larger terminal blocks and enclosure.
DSS10N-03P is preferred in this setup to jumper incoming DK10N-BK terminals.
Critical
The The Shelly Pro 3EM is powered via a line connection to terminal C and should be used for single phase. Use A and C with split single phase or two phase. Use A, B, and C for three phases.
The Shelly Pro 3EM is powered via a line connection to terminal C and should be used for single phase. Use A and C with split single phase or two phase. Use A, B, and C for three phases.
You must leave enough slack in the wires feeding the contactors to allow CTs to fit and position them prior to anchoring wires to the enclosure.
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14. Heyco Products M4848, qty 4 (1 inch strain relief)
Assembly
Drill Drill and mount four 1-inch strain relief/cable glands.
Mount two 35mm din rails, 10 inches.
Mate two Pro 3EM meters with Pro 3EM Switch Add-on units prior to mounting.
On the top row, mount contactors, Pro 3EM meters, and Pro 3EM Switch Add-on modules, as pictured.
Mount SS2N spacer blocks on the top row, establishing 10mm of spacing between components and securing them in place.
Mount terminal blocks as pictured, with SS2N spacer blocks on the top row, securing terminal blocks in place.
Using DSS10N-02P, jumper two Dinkle DK10N terminal blocks, circuit 1
Using DSS10N-02P, jumper two Dinkle DK10N-RD terminal blocks, circuit 1
Using DSS10N-03P, jumper three Dinkle DK10N-BK terminal blocks, circuit 1
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