Square D Digest 179

Low-Voltage Dry-Type Distribution Transformers

DOE 2016 Energy Efficient Single Phase and Single Phase Watchdog

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Class 7400 / Refer to Catalog 7400CT0601

DOE 2016 Energy Efficient Watchdog Three Phase and Single Phase Watchdog transformers, by design, reduct energy consumption at loads greater than 50% loading, giving fewer BTUs/hour at those loading levels. The life expectancy is greater than that of 150°C rise General Purpose units. • Aluminum or copper windings • Two temperature rise options: 115°C rise on 220°C insulation systems (15% continuous emergency overload capacity); 80°C rise on 220°C insulation systems (30% continuous emergency overload capacity)

Table 14.6: EXN & EX Three Phase 60 Hz; UL Listed kVA Catalog No. Minimum Efficiency 480 V Delta Primary, 208Y/120 Secondary, Aluminum Windings 15 EXN15T3HF 97.89%

Weight (lbs) [11]

Degree C Temp. Rise

Sound Level

Enclosure [12]

Insulation Class

%IZ

@ 35% 75°C Full Capacity Taps

3.98% 2.92% 3.46% 5.07% 3.30% 3.29% 4.5% 30.0% 3.90% 3.98% 3.72% 4.01% 3.42% 4.56% 6.8% 5.0% 4.01% 4.37% 4.10% 5.05% 2.54% 3.92% 4.53% 2.76% 4.12% 5.61% 3.76% 5.45%

184 324 400 527 806

17M 18M 19M 20M 21M 22M 24J 25J 30J 17M 18M 19M 20M 21M 22M 24J 25J 30J 17M 18M 19M 20M 21M 22M 25J 30J 17M 18M 19M 20M 21M 22M 25J 30J

30 45 75

EXN30T3HF EXN45T3HF EXN75T3HF EXN112T3HF EXN150T3HF EX225T3HF EX300T3HF EX500T68HF

98.23% 98.40% 98.60% 98.74% 98.83% 98.94% 99.02% 99.14% 98.23% 98.40% 98.60% 98.74% 98.83% 98.94% 99.02% 99.14% 98.23% 98.40% 98.60% 98.74% 98.83% 98.94% 99.02% 98.23% 98.40% 98.60% 98.74% 98.83% 98.94% 99.02%

39dB

6–2.5%2+4–

112.5

44dB

115

220

150 225 300 500

1012 1825 1975 3100

49dB

4–2.5%2+2–

4.9% 56dB

480 V Delta Primary, 208Y/120 Secondary, Copper Windings 15 EXN15T3HFCU 97.89%

219 358 412 653 899

30 45 75

EXN30T3HFCU EXN45T3HFCU EXN75T3HFCU EXN112T3HFCU EXN150T3HFCU EX225T3HFCU EX300T3HFCU EX500T68HFCU

39dB

6–2.5%2+4–

112.5

44dB

115

220

150 225 300 500

1303 1545 1975 3705

49dB

4–2.5%2+2–

4.8% 56dB

480 V Delta Primary, 208Y/120 Secondary, Aluminum Windings 15 EXN15T3HB 97.89%

195 345 416 580 949

30 45 75

EXN30T3HB EXN45T3HB EXN75T3HB EXN112T3HB EXN150T3HB EX225T3HB EX300T68HB

39dB

6–2.5%2+4–

80

220

112.5

44dB

150 225 300

1208 1975 3100

4.6% 49dB 4.4% 56dB

4–2.5%2+2–

480 V Delta Primary, 208Y/120 Secondary, Copper Windings 15 EXN15T3HBCU 97.89%

235 407 509 690

30 45 75

EXN30T3HBCU EXN45T3HBCU EXN75T3HBCU EXN112T3HBCU EXN150T3HBCU EX225T3HBCU EX300T68HBCU

39dB

6–2.5%2+4–

80

220

112.5

44dB

1146 1424 1975 3705

150 225 300

6.9% 49dB 5.0% 56dB

4–2.5%2+2–

Table 14.7: EE Single Phase: 60 Hz, cULus Listed kVA Catalog No. Minimum Efficiency @ 35% 75°C 240 x 480 Vac Primary, 120 / 240 Vac Secondary, Aluminum Windings 15 EE15S3HF 97.70%

Weight (lbs) [11]

DegreeC Temp.Rise

Insulation Class

Sound Level dB

Full Capacity Taps

Enclosure [12]

%IZ

3.5% 4.0% 3.7% 3.7% 3.5% 3.5% 1.7% 3.9% 3.7% 3.6% 3.4% 3.4%

275 340 395 620 685 985 280 345 400 625 690 995

17D 18H 18H 21D 22D 24D 17D 18H 18H 21D 22D

25

EE25S3HF EE37S3HF EE50S3HF EE75S3HF EE100S3HF EE15S3HB EE25S3HB EE37S3HB EE50S3HB EE75S3HB EE100S3HB

98.00% 98.20% 98.30% 98.50% 98.60% 97.70% 98.00% 98.20% 98.30% 98.50% 98.60%

45dB

37.5

115

50 75 15 25 50 75

480Vac 6–2.5% 2+4– 240Vac 3–5%1+2–

50dB

100

220

45dB

37.5

80

50dB

100

24D Other primary and secondary combinations are available via the Schneider Electric Product Configurator. Contact your local Schneider Electric representative for more information.

14 TRANSFORMERS

[11] Not for construction, Contact your local Schneider Electric representative for certified prints. [12] For enclosure styles, see Enclosure Dimensions and Accessories, page 14-8

14-7

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