How to find the right Power Entry Modules AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Power Entry Modules
- Inlet type and current
- Match the IEC 60320 inlet to the load and the cord: C14 inlet (C13 cord) for typical 10 A equipment, C20 inlet (C19 cord) for 16 A, C16 inlet (C15 cord) for hot-condition use. The inlet sets the maximum current and which cords will fit.
- Fuse configuration
- Choose single-fuse (line only) or dual-fuse (line and neutral) holders, and confirm the fuse format, for example 5x20 mm. Equipment destined for supplies where line and neutral can be reversed often needs both conductors fused.
- Switch
- Prefer a double-pole switch when the safety standard for your equipment requires disconnecting both conductors; check the illumination and switch rating. A single-pole switch can leave the neutral, or a reversed line, connected to the circuit.
- Integrated EMI filter
- Pick a filtered module sized to the equipment current and its conducted-emission needs; check the leakage current spec against your equipment class. A built-in filter saves board space and wiring, but filter capacitors add leakage current, which is limited in medical and some other equipment.
- Mounting and panel fit
- Match the panel cutout, mounting style (snap-in or screw/flange) and allowed panel thickness to the datasheet; check the termination style (quick-connect or solder). Snap-in modules only latch within a specific panel thickness range.
- Safety approvals
- Require recognized marks such as UL/cUL, VDE or ENEC for the target market. The power entry point is a primary safety component and is scrutinized during product certification.
Brands that matter
- Schurter: Very broad range of modular power entry modules with fuses, switches, filters and voltage selectors.
- TE Connectivity (Corcom): Long-established line of EMI-filtered power entry modules.
- Qualtek: Wide catalog of IEC inlets and power entry modules at practical lead times.
- Delta Electronics: Known for EMI filters, including filtered power inlets.
- Bel Fuse: Offers IEC inlets and fused power entry products.
What to avoid
- Modules without recognized safety approvals, especially in equipment that will be certified.
- Snap-in modules on panels outside the specified thickness range.
- Filtered modules with leakage current above your equipment class allowance.
- Confusing the cord connector (C13) with the panel inlet (C14) when ordering.
Questions
What is the difference between C13 and C14?
C13 is the female connector on the cord; C14 is the male inlet mounted on the equipment. A power entry module uses the inlet (C14), which accepts a C13 cord.