112.5 kVA Transformers

In Stock Since 1973

112.5 kVA Transformers | 3-Phase Step-Up & Step-Down Units.

Weight 400–1,200 lbs depending on copper or aluminum windings. Most popular: 480V to 208Y/120V. K-Factor rated K-1 through K-20, harmonic mitigating, low-noise (-3 dB), and autotransformer configurations. 50/60 Hz dual-rated models available.

✔ 438+ units in inventory    ✔ NEMA 1, 2, 3R, and 3R Heavy Duty enclosures    ✔ Reconditioned units backed by warranty

Request a Quote Contact Support Used & Reconditioned

Technical Specifications of a 112.5 kVA Transformer

The table below covers the full specification range across the 112.5 kVA dry-type transformer inventory we carry and source.

Bruce Electric also supports specialty and custom transformer configurations depending on manufacturer availability and application requirements.

112.5 kVA Transformer Weight

Weight varies by phase, winding material, and enclosure. Use the table below for freight planning and structural load assessment. For certified dimensions and exact shipping weight, request the manufacturer datasheet with your quote.

112.5 kVA Transformer Amps

Output amps depend on secondary voltage and phase configuration.

Formulas:

Three-phase: Amps = 112,500 ÷ (Volts × 1.732)

Single-phase: Amps = 112,500 ÷ Volts.

The tables below cover primary amps and secondary amps for the voltage levels present in our 112.5 kVA transformer inventory. Use these values for overcurrent device sizing per NEC Article 450, feeder conductor ampacity selection, and panel schedule design. Always verify against the unit nameplate before finalizing protection settings.

112.5 kVA Transformer Primary Amps

112.5 kVA Transformer Secondary Amps

112.5 kVA Step-Up vs. Step-Down Transformer

A 112.5 kVA step-down transformer reduces voltage from primary to secondary most commonly 480V to 208Y/120V for North American commercial power distribution. A 112.5 kVA step-up transformer increases voltage, for example from 208V to 480Y/277V, to feed higher-voltage equipment from a lower-voltage source. In most dry-type designs, the same physical unit can serve either function depending on wiring but always specify intended primary and secondary voltage to ensure correct nameplate design, warranty coverage, and NEC compliance.

Common Step-Down Configurations

Common Step-Up Configurations

Key Features of Our 112.5 kVA Dry-Type Transformers

1. Three-phase configurations across all standard and specialty types

2. Air-cooled dry-type construction no oil, no liquid maintenance, no spill risk

3. Copper or aluminium windings to balance performance requirements and project budget

4. NEMA 1, NEMA 2, and NEMA 3R enclosures for indoor and outdoor installation

5. DOE 2016 compliant on all new units; Super-Efficient models available (Acme TPC3-series, Hammond HPS Super centurion)

6. Specialty types: K-Factor rated, Harmonic Mitigating, Low Noise (–3 dB), and Autotransformer configurations in inventory

7. 50 Hz / 60 Hz dual-rated models available for international equipment compatibility

Applications of 112.5 kVA Dry-Type Transformers

1. Commercial buildings and office facilities – 480V to 208Y/120V step-down for tenant panels and lighting

2. Manufacturing and industrial plants – motor control centers, CNC equipment, and process line distribution

3. Healthcare and medical facilities – isolated power systems for ORs and critical care areas, often paired with UPS systems

4. Data centers and IT infrastructure – 480V to 208V step-down feeding server PDUs and UPS bypass panels

5. Transportation and infrastructure – transit stations, airports, and rail facility power distribution

6. Construction sites – temporary 480V-to-208Y/120V distribution for site panels and temporary power

Why Choose Bruce Electric for 112.5 kVA Transformers

Bruce Electric is a trusted supplier of 112.5 kVA dry-type transformers, offering a wide selection of new units to meet diverse project specifications. With over 50 years of industry experience, we provide fast access to in-stock transformers in multiple voltage configurations, phases, and NEMA enclosure types. Customers benefit from expert technical support for accurate sizing and configuration, and equipment that meets UL, DOE, and NEC standards. Used and reconditioned 112.5 kVA transformers are available upon request through our sourcing and RFQ process contact us for current availability. Backed by nationwide shipping and warranty coverage, Bruce Electric delivers reliable, cost-effective transformer solutions with quick turnaround times.

FAQs

Q1. What are the secondary amps of a 112.5 kVA transformer at 208V?

For a three-phase secondary at 208Y/120V: Amps = 112,500 ÷ (208 × 1.732) = approximately 312 A. For single-phase at 240V: 112,500 ÷ 240 = approximately 469 A. Always confirm against the nameplate for final NEC 450.3 overcurrent device sizing.

Q2. What are the primary amps of a 112.5 kVA transformer at 480V?

At a 480V three-phase primary: Amps = 112,500 ÷ (480 × 1.732) = approximately 135 A. This figure is used for feeder conductor sizing and upstream overcurrent protection selection per NEC Article 450.

Q3. How much does a 112.5 kVA transformer weigh?

Weight typically ranges from 400 to 1,200 lbs depending on phase (single vs. three-phase), winding material (copper vs. aluminum), and enclosure type. Three-phase copper-wound units in NEMA 1 enclosures are at the upper end. Always request certified shipping weight for structural loading and freight planning.

Q4. What is the typical price of a 112.5 kVA transformer?

New unit pricing varies by manufacturer, voltage configuration, winding material, and efficiency class. Contact Bruce Electric for a current quote. Used and reconditioned 112.5 kVA transformers are available upon request through our RFQ process and can offer 20–50% savings versus new.

Q5. Is a 112.5 kVA transformer DOE 2016 compliant?

Yes. All new low-voltage dry-type distribution transformers sold in the U.S. must meet DOE 2016 minimum efficiency standards. Super-Efficient series units (Acme TPC3-series, Hammond HPS Super-centurion) exceed these minimums and deliver additional lifecycle energy savings.