Square D Digest 179

Thermal Units

Thermal Unit Selection Thermal Unit Selection Tables

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Thermal Unit Table 22 (index and instructions: page 16-134 to page 16-138) Motor FLC (A)

Thermal Unit Table 24 (index and instructions: page 16-134 to page 16-138) Motor FLC (A) Thermal Unit Number

Thermal Unit Number

92.0–100. 101.–109. 110.–119. 120.–131. 132.–139. 140.–156. 157.–166. 167.–180. 181.–189. 190.–209. 210.–225. 226.–238. 239.–266.

DD112.0 — — — DD150.0 DD160.0 DD185.0 — DD220.0 — DD250.0 DD265.0 DD280.0

88.2–95.1 95.2–101. 102.–111. 112.–119. 120.–131. 132.–149. 150.–170. 171.–180. 181.–197. 198.–204. 205.–213. 214.–237. 238.–243. 244.–266.

DD112.0 — — — DD150.0 DD160.0 DD185.0 DD220.0 DD240.0 DD250.0 DD265.0 DD280.0

— —

Thermal Unit Table 28 (index and instructions: page 16-134 to page 16-138) Motor FLC (A)

Thermal Unit Table 26 (index and instructions: page 16-134 to page 16-138) Size 7 Type J Size 8 Type K

2or 3T.U.

Current Transformer Ratio

Thermal Unit Number

Thermal Unit Number

Large Enclosure 45.3–48.2 48.3–52.4 52.5–56.4 56.5–61.2 61.3–66.1 66.2–71.4 71.5–77.0 77.1–80.7 80.8–87.7 87.8–94.9 95.0–102. 103.–110. 111.–117. 118.–133. —

Small Enclosure 40.3–42.8 42.9–46.2 46.3–49.8 49.9–54.9 55.0–57.9 58.0–62.5 62.6–67.3 67.4–73.4 73.5–78.9 79.0–84.9 85.0–91.0 91.1–97.2 97.3–104. 105.–121. 122.–133.

120/5

2000/5

MotorFLC

CC64.3 CC68.5 CC74.6 CC81.5 CC87.7 CC94.0 — CC112.0 CC121.0 CC132.0 CC143.0 CC156.0 CC167.0 CC180.0 CC196.0

166.–187. 188.–211. 212.–232. 233.–267. 268.–301. 302.–336. 337.–383. 384.–425. 426.–466. 467.–522. 523.–587. 588.–656. 657.–764.

277.–312. 313.–352. 353.–388. 389.–445. 446.–503. 504.–561. 562.–640. 641.–708. 709.–777. 778.–870.

B1.03 B1.16 B1.30 B1.45 B1.67 B1.88 B2.10 B2.40 B2.65 B3.00 B3.30 B3.70 B4.15

16 NEMA AND DEFINITE PURPOSE CONTACTORS AND STARTERS

871.–978. 979.–1093. 1094.–1215.

Thermal Unit Table 34 (index and instructions: page 16-134 to page 16-138) Motor FLC (A) Thermal Unit Number

Thermal Unit Table 31 (index and instructions: page 16-134 to page 16-138) Motor FLC (A)

Thermal Unit Number

15.1–16.2 16.3–17.5 17.6–19.1 19.2–20.7 20.8–22.2 22.3–24.0 24.1–25.7 25.8–27.8 27.9–30.1 30.2–32.5 32.6–35.1 35.2–38.0 38.1–41.1 41.2–44.0 44.1–47.2 47.3–51.1 51.2–55.8 55.9–59.5 59.6–64.5 64.6–69.5 69.6–75.0 75.1–78.1 78.2–82.3 82.4–86.0 15.3–16.7 16.8–19.8 19.9–22.8 22.9–25.8 25.9–30.4 30.5–31.9 32.0–34.2 34.3–38.8 38.9–44.2 44.3–50.2 50.3–57.1 57.2–63.2 63.3–68.6 68.7–78.6 78.7–86.0

— CC22.8 CC24.6 CC26.3 CC28.8 CC31.0 CC33.3 CC36.4 CC39.6 CC42.7 CC46.6 CC50.1 CC54.5 CC59.4 CC64.3 CC68.5 CC74.6 CC81.5 CC87.7 CC94.0 — CC112.0 CC121.0 CC132.0

0.31–0.35 0.36–0.39 0.40–0.44 0.45–0.50 0.51–0.61 0.62–0.68 0.69–0.73 0.74–0.82 0.83–0.92 0.93–1.03 1.04–1.19 1.20–1.34 1.35–1.50 1.51–1.74 1.75–1.97 1.98–2.14 2.15–2.47 2.48–2.91 2.92–3.31 3.32–3.75 3.76–4.05 4.06–4.94 4.95–5.52 5.53–6.11 6.12–6.52 6.53–7.31 7.32–8.43 8.44–9.83 9.84–10.7 10.8–11.6 11.7–12.9 13.0–14.3 14.4–15.7 15.8–17.8 17.9–20.3 20.4–23.3 23.4–26.6 26.7–30.3 30.4–35.3 35.4–41.5 41.6–45

B0.44 B0.51 B0.57 B0.63 B0.71 B0.81 B0.92 B1.03 B1.16 B1.30 B1.45 B1.67 B1.88 B2.10 B2.40 B2.65 B3.00 B3.30 B3.70 B4.15 B4.85 B6.25 B6.90 B7.70 B8.20 B9.10 B10.2 B11.5 B12.8 B14.0 B15.5 B17.5 B19.5 B22.0 B25.0 B28.0 B32.0 B36.0 B40.0 B45.0 B50.0

Thermal Unit Table 40 (index and instructions: page 16-134 to page 16-138) Motor FLC (A) Thermal Unit Number

— — — — — — — — — —

— — — C90.0 —

16-143

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