What is the D on an SSP04EMA48D? | Schneider Electric USA

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What is the D on an EMA series SPD?

Product Line:
Surge Protective Devices (SPD's)

Resolution:
The D in the part number indicates a 150A Automatic molded case which provides no overload or low level fault protection.

Are we able to field install breaker disconnects in the EMA SPDs, SSPxxEMAxxxxx?
It is not possible to field-install an integral disconnect switch on an EMA SPD or order an EMA SPD with the Integral Disconnect "D" included, SSPxxEMAxxxDx
https://www.se.com/us/en/product-range/61958-type-ema/

The EMA terminals for the disconnect switch offer accept a range of 10 AWG to 3/0 AWG copper wire for each phase connectors.
Wiring Diagrams With Integral Switch is shown on pages 17 - 19 of the SurgeLogic EMA Series Instruction Bulletin 8222-0014