🔌 IEC C1 (D‑Style Squared) ↔ NEMA 1‑15P Polarized Power Cable
 
(2‑Wire AC Power Cord • Double‑Insulated Devices Only)

This cable delivers ungrounded AC power from a North American polarized outlet to compact devices with a D‑StyleIEC C1 inlet. The D‑style squared C1 connector is a geometry variant of the IEC C1 standard, and the polarized NEMA plug ensures correct line/neutral orientation for safety compliance.
 
🔧 Cable Form
IEC C1 female (D‑style squared)
Flat D‑Style housing with two round holes
Squared on one end (vs oval variant)
Found on grooming tools, radios, chargers
NEMA 1‑15P polarized male
Two flat blades: one wide (neutral), one narrow (hot)
Ensures proper orientation in polarized wall outlets
2‑wire cable (line + neutral)
Typical length: 6FT
Rated for 120 V AC, ~2.5 A max
 
🖥️ Compatible Devices
Electric shavers and toothbrush bases
Portable radios and cassette players
Battery chargers and grooming tools
✅ Any Class II double‑insulated appliance with a D‑Style IEC C1 inlet
✅ Devices requiring polarized AC input for UL/CSA compliance
 
✅ Common Uses
🔋 Powering small appliances from standard North American outlets
🔌 Replacing OEM cords with correct geometry and polarity
🧩 Ensuring safe polarity alignment for devices with internal AC transformers
🧪 Field compatibility with polarized outlets in homes and hotels
 
🧠 Signal Format
⚡ AC mains power (North America: 120 V, 60 Hz)
🔌 2‑wire ungrounded connection (line + neutral)
📏 Polarized plug ensures neutral blade always aligns correctly
🧪 IEC C1 does not support ground — only for double‑insulated devices
 
⚠️ Things to Watch Out For
📉 Not interchangeable with IEC C7 or C5 cords
🔌 Polarized plug may not fit non‑polarized outlets (older or international)
🧯 Only safe for devices designed with Class II insulation
📏 D‑Style IEC C1 inlet is not compatible with oval C1 plugs
🧪 Always match geometry and plug type to device specs
 
🛠️ Quick Tips for Beginners
🧭 Confirm your device has a D‑Style IEC C1 inlet
🔌 Check for polarized NEMA plug (one blade wider)
🧯 Label clearly: “IEC C1P ↔ NEMA 1‑15P Polarized”