Dry-Type Isolation Transformer — Sizing Reference

Transformer Sizing Tool

Select the primary voltage, secondary voltage and transformer rating to get recommended conductors, overcurrent protection, conduit and grounding — with a live short-circuit calculation as you adjust impedance.

Ambient30°C, dry-type
Protection Scheme

01 Configuration

Primary Voltage
Secondary Voltage
Transformer Rating (kVA)
Conductor Material
Transformer Impedance — editable, defaults to code-minimum for this rating
%

02 Single-Line Overview

03 Recommended Sizing