Automationdirect.com Stellar SR44, User Manual

Page: 43 / 238

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Contents of this Chapter...
3.1 – Motor Suitability and Associated Considerations . . . . 3–2
3.1.1 – Suitability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.1.2 – Induction Motor Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.1.3 – Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–2
3.1.4 – Maximum Motor Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
3.1.5 – Power Factor Correction Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
3.1.6 – Lightly Loaded Small Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–3
3.1.7 – Motors Installed with Integral Brakes . . . . . . . . . . . . . . . . . . . . . . . . 3–3
3.1.8 – Older Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
3.1.9 – Wound-rotor or Slip-ring Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–3
3.1.10 – Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3
3.1.11 – Efficiency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–4
3.1.12 – High-Efficiency Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–4
3.1.13 – EU Compliance with the EMC Directive . . . . . . . . . . . . . . . . . . . . . 3–4
3.1.14 – Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3–4
(Table of Contents continued next page)
NOTE: SR44 soft starters have been discontinued. Please consider SR55 soft starters as a replacements.
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