PAC 1200W Isolation Step Down Transformer | 240V to 100V & 120V Toroidal Voltage Converter (USA / Japan)

PAC Toroidal Voltage Converters — Clean, Noise-Free Continuous Power

Run 100V Japanese and 110V–120V North American electronics safely from standard Australian 230V/240V mains power with the PAC 1200W Isolated Toroidal Step-Down Transformer (SKU: STIS-1200).

Unlike standard autotransformers that share a common internal winding, the PAC STIS isolation series features true galvanic isolation. By physically separating the 240V Australian mains supply from your appliance circuit, it acts as an active power filter—blocking DC voltage spikes, filtering line hash, and eliminating 50Hz ground loop hum in studio audio, Hi-Fi turntables, and precision test instruments.

Simply plug the transformer into any standard Australian 240V wall socket, connect your imported appliance into the dedicated 100V or 120V socket, switch the breaker ON, and power up.

Why Choose PAC (Power and Compressions)?

• True Galvanic Isolation: Complete electrical separation between primary (240V) and secondary (100V/120V) circuits cleans up line distortion and protects delicate equipment.

• Dual Output Outlets: Fitted with1 x 100V (optimised for Japanese 100V gear) and 1 x 120V (for US/Canadian 110V–120V equipment).

• Triple Safety Protection: Built-in front-panel miniature circuit breaker (MCB), rear short-circuit fuse, and internal thermal overload cutoff.

• True 24/7 Continuous Duty: High-efficiency toroidal core runs cooler, quieter, and consumes less idle power than traditional laminated EI transformers.

• Proven Commercial Reliability: Trusted across Australia and New Zealand since 2007, including supply to the US Government Consulate General in Australia.

• Australian Standards Compliant: ACMA and EESS Responsible Supplier registered for Australian electrical safety.

• 2-Year Factory Warranty: Backed by local Australian customer service and replacement support.

Important Electrical Note: Due to the high magnetic efficiency of toroidal cores at initial startup, a standard 6kA C-curve circuit breaker/RCD on your household switchboard is recommended to easily absorb startup inrush current.

Technical Specifications

Appliance Compatibility & Sizing Guide

Recommended for Appliances up to 1200W:

• Kitchen & Beverage: NutriBullet Pro 900 series, KitchenAid Pro & KSM series stand mixers, electric meat grinders, Japanese rice cookers (under 1200W).

• Workshop Power Tools: Milwaukee, DeWalt, Makita, and Porter-Cable 120V tools rated up to 1200W or 10A.

• Audio & Home Theatre: High-end turntables, tube preamplifiers, Yamaha/Onkyo AV receivers, studio monitors, guitar amplifiers.

• Home & Personal Electronics: Shark Rocket upright vacuums, Dyson (120V US versions under 1200W), sewing machines, lab test instruments.

Not Suitable For:

• High-draw heating resistance appliances exceeding 1200W (e.g., standard domestic kettles, 2-slice toasters, commercial espresso machines, induction cooktops, instant pots).

Motor & Surge Sizing Rule:

Appliances featuring electric motors, compressors, or pumps (e.g., refrigeration, power saws, air compressors) experience high startup current surges lasting several seconds. Always select a transformer rated 1.5 to 2 times higher than the appliance nameplate wattage to handle the startup surge safely.

Frequently Asked Questions

Why does my plug feel tight when inserting it the first time?

PAC step-down converters use high-grade, heavy-duty pressed metal socket clamps to ensure a tight, spark-free connection. A firm push is normal during initial use.

What does 60Hz to 50Hz frequency difference mean for my appliance?

Australian mains runs at 50Hz, while North America runs at 60Hz. Transformers convert voltage, not line frequency.

• Pure Heating/Resistive & Electronic items: Unaffected (e.g., mixers with electronic speed control, power supplies, amplifiers).

• AC Synchronous Motors: Will rotate approximately 8–10% slower (e.g., analog mechanical clocks or legacy motorized turntables without digital speed controllers).