Practice question

What is the fundamental wiring difference between a NEMA TS1 cabinet and a NEMA TS2 Type 1 cabinet?

  1. TS2 Type 1 replaces the MS-A/B/C parallel wiring with an SDLC serial data bus
  2. TS2 Type 1 uses higher field-output voltage than TS1
  3. TS2 Type 1 eliminates the conflict monitor and load switches
  4. TS2 Type 1 is wired with single-conductor 600 V cables instead of multi-conductor harnesses

Answer: A — TS2 Type 1 replaces the MS-A/B/C parallel wiring with an SDLC serial data bus

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