BuyLog Flippingbook MAR 2024

TRANSFORMERS - LOW VOLTAGE, DRY TYPE, BUYLOG SECTION 5

5-5

Low Voltage Dry Type Vented Transformers

K-Factor

Low audible noise Office buildings, Hospitals, Schools, Museums, Libraries

Midtapped

Drive Isolation

Office buildings Silicon controlled rectified (SCR) control circuitry in adjustable speed drives, Elevators, Escalators, People movers

Application

Non-linear loads, Motors

Electrostatic shields

– – – – –

– – – – –

– – – – –

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Noise isolation

– – – –

Harmonic mitigating Surge suppression

Integrated load center and circuit breakers

Phase

1 3

–

–

–

–

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kVA, max

300 480

500 480

500 480

220 575

Primary voltage

Secondary voltage, 3-wire

208Y/120 V

208Y/120 V

240/120 V

460Y/266 V 2

Frequency Windings

60 Hz

60 Hz

60 Hz

60 Hz

Aluminum (AL)

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Copper (CU)

–

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Temperature rise

80 ° C, 115 ° C, 150 °C

80 ° C, 115 ° C, 150 °C Exceeds NEMA ST-20

80 ° C, 115 ° C, 150 °C

150 °C

Audible sound level (dB) NEMA ST-20 std Seismic qualification

Meets or exceeds NEMA ST-20

Meets or exceeds NEMA ST-20

Meets or exceeds NEMA ST-20

CBC 2022 and IBC 2021

CBC 2022 and IBC 2021

CBC 2022 and IBC 2021

CBC 2022 and IBC 2021

Enclosure

NEMA 2

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Optional rain shield kit: NEMA 3R

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Accessible mounting feet

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²See product pages for additional list of voltage variations

 Applicable – N/A