Selection Guide

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Siemens Energy & Automation, Inc.
Industrial Controls Catalog
Discount Code: NEMA Control
Selection
Overload Relay Heater Tables
Full Load Motor Amps, 3 Phase, Trip Class 20 – Tables 233, 238
Full Load Amps
Heater
Size 00, 0, 1 Size 1
3
⁄ 4 Size 2, 2
1
⁄ 2 Size 3, 3
1
⁄ 2 Size 4 Catalog No
0.38–0.40 — — — — E6
0.41–0.43 — — — — E7
0.44–0.48 — — — — E8
0.49–0.53 — — — — E9
0.54–0.57 — — — — E11
0.58–0.62 — — — — E12
0.63–0.66 — — — — E13
0.67–0.72 — — — — E14
0.73–0.80 — — — — E16
0.81–0.85 — — — — E17
0.86–0.92 — — — — E18
0.93–0.99 — — — — E19
1.00–1.08 — — — — E23
1.09–1.23 — — — — E24
1.24–1.37 — — — — E26
1.38–1.54 — — — — E27
1.55–1.69 — — — — E28
1.70–1.80 — — — — E29
1.81–1.94 — — — — E31
1.95–2.07 — — — — E32
2.08–2.26 — — — — E33
2.27–2.54 2.27–2.54 — — — E34
2.55–2.69 2.55–2.69 — — — E36
2.70–2.88 2.70–2.88 — — — E37
2.89–3.14 2.89–3.14 — — — E38
3.15–3.40 3.15–3.40 — — — E39
3.41–3.81 3.41–3.81 — — — E41
3.82–4.26 3.82–4.25 — — — E42
4.27–4.62 4.26–4.62 — — — E44
4.63–5.09 4.63–5.09 — — — E46
5.10–5.61 5.10–5.61 — — — E47
5.62–5.91 5.62–5.91 — — — E48
5.92–6.15 5.92–6.15 — — — E49
6.16–6.70 6.16–6.70 — — — E50
6.71–7.54 6.71–7.54 — — — E51
7.55–8.29 7.55–8.29 — — — E52
8.30–8.99 8.30–8.99 — — — E53
9.00–9.85 9.00–9.85 — — — E54
9.86–10.4 9.86–10.4 — — — E55
10.5–12.0 10.5–12.0 10.5–12.0 — — E56
12.1–13.6 12.1–13.6 12.1–13.6 — — E57
13.7–15.6 13.7–15.6 13.7–15.6 — — E60
15.7–17.0 15.7–17.0 15.7–17.1 — — E61
17.1–18.4 17.1–19.4 17.2–19.4 — — E62
18.5–19.4 19.5–20.9 19.5–20.9 — — E65
19.5–21.3 21.0–22.2 21.0–22.2 — — E66
21.4–24.4 22.3–25.3 22.3–25.3 — — E67
24.5–25.9 25.4–26.9 25.4–26.9 30.0–33.5 — E69
26.0–27.0 27.0–30.2 27.0–30.2 33.6–36.4 — E70
—— —36.5–39.6 — E71
— 30.3–33.3 30.3–33.3 — — E72
— 33.4–36.0 33.4–35.3 39.7–43.6 — E73
—— —43.7–46.5 — E73A
—— 35.4–41.5 46.6–51.6 — E74
—— 41.6–45.0 51.7–54.4 — E76
—— 45.1–52.3 54.5–58.0 — E77
—— 52.4–55.7 58.1–63.0 — E78
—— 55.8–60.0 63.1–67.7 — E79
—— —67.8–72.4 — E80
—— —— —E88
—— —— 56.9–60.9 E89
—— —— 61.0–63.9 E91
—— —— 64.0–67.7 E92
—— —— 67.8–72.4 E93
—— —72.5–80.0 72.5–77.7 E94
—— —80.1–88.1 77.8–85.9 E96
—— —88.2–91.5 86.0–91.9 E97
—— —91.6–96.8 92.0–96.7 E98
—— —96.9–99.0 96.8–105 E99
—— —99.1–108.0 — E101
—— —— —E102
—— —— 106–115 E103
—— —— 116–130 E104
Table 233 for Class 17, 18, 25, 26, 30, 32
Full Load Amps
Heater
48DC 48GC 48HA 48JA Catalog No
0.30–0.32 — — — E3
0.33–0.35 — — — E4
0.36–0.38 — — — E5
0.39–0.41 — — — E6
0.42–0.44 — — — E7
0.45–0.49 — — — E8
0.50–0.54 — — — E9
0.55–0.58 — — — E11
0.59–0.63 — — — E12
0.64–0.67 — — — E13
0.68–0.73 — — — E14
0.74–0.81 — — — E16
0.82–0.87 — — — E17
0.88–0.94 — — — E18
0.95–1.00 — — — E19
1.01–1.10 — — — E23
1.11–1.26 — — — E24
1.27–1.40 — — — E26
1.41–1.58 — — — E27
1.59–1.74 — — — E28
1.75–1.85 — — — E29
1.86–1.99 — — — E31
2.00–2.11 — — — E32
2.12–2.31 — — — E33
2.32–2.59 — — — E34
2.60–2.75 — — — E36
2.76–2.95 — — — E37
2.96–3.21 — — — E38
3.22–3.48 — — — E39
3.49–3.89 — — — E41
3.90–4.35 — — — E42
4.36–4.73 — — — E44
4.74–5.21 — — — E46
5.22–5.74 — — — E47
5.75–6.05 — — — E48
6.06–6.46 — — — E49
6.47–6.95 — — — E50
6.96–8.09 — — — E51
8.10–9.29 — — — E52
9.30–10.4 — — — E53
———— E54
10.5–10.9 — — — E55
11.0–12.0 — — — E56
12.1–14.5 — — — E57
14.6–16.8 — — — E60
16.9–18.4 16.9–18.4 — — E61
18.5–20.9 18.5–20.9 — — E62
21.0–22.5 21.0–22.5 — — E65
22.6–24.3 22.6–24.7 — — E66
24.4–27.2 24.8–27.2 27.1–30.0 — E67
27.3–29.2 27.3–29.2 30.1–33.2 — E69
29.3–30.0 29.3–32.0 33.3–35.7 — E70
— 32.1–34.9 35.8–39.4 — E71
——39.5–43.4 — E72
— 35.0–37.8 43.5–46.9 — E73
— 37.9–41.7 — — E73A
— 41.8–45.9 47.0–51.5 — E74
— 46.0–49.0 51.6–57.0 — E76
— 49.1–54.2 57.1–62.8 — E77
— 54.3–60.0 62.9–69.1 — E78
——69.2–75.0 — E79
——75.1–83.3 — E80
———50.0–55.9 E88
———56.0–60.9 E89
———61.0–65.9 E91
———66.0–69.9 E92
———70.0–75.9 E93
———76.0–81.9 E94
——83.4–86.9 82.0–86.9 E96
——87.0–92.9 87.0–92.9 E97
——93.0–100.0 93.0–97.9 E98
———98.0–107.9 E99
———108–113.9 E101
———114–125.9 E102
———126–138.9 E103
———139–153.9 E104
———154–163.9 E106
———164–180.9 E107
Table 238 for Class 48
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