The NFS40 medical series is a 40 W universal input ac-dc power supply on a 5 x 3 inch card with a maximum component height of 1.2 inches for use in medical applications. The NFS40 medical series has the same generic feature set as the standard NFS40 series but has been designed with lower safety ground leakage and higher isolation as required for medical safety approval. The NFS40 provides 40 W of output power with free air convection cooling which can be boosted to 50 W with 20 CFM of air. Standard features include overvoltage and short-circuit protection. The series, with full medical safety approval to EN60601 and UL2601 and the CE mark, meets conducted emissions EN55022 level A. The NFS40 medical series is designed for use in low power medical, dental and laboratory applications such as dialysis machines, monitoring equipment, instrumentation and infusion pump controls.
The NFS40 medical series is a 40 W universal‑input AC‑DC power supply on a 5 × 3 inch card, with a maximum component height of 1.2 in. It is intended for medical, dental and laboratory equipment such as dialysis machines, monitoring devices, instrumentation and infusion‑pump controls. The series offers the same generic feature set as the standard NFS40 series but adds lower safety‑ground leakage and higher isolation to meet medical safety approvals.
Key specifications include free‑air convection cooling (40 W) that can be boosted to 50 W with 20 CFM forced air, over‑voltage and short‑circuit protection, EN60601, UL2601, CE, VDE and CSA safety approvals, and a wide input voltage range of 85‑264 VAC (120‑370 VDC). The device meets EN55022 Level A conducted emissions and provides typical efficiencies of about 70 %.
| Input Voltage Range | 85‑264 VAC, 120‑370 VDC |
|---|---|
| Efficiency | 70 % typical |
| Isolation Voltage | 4000 Vac input to output, 1500 Vac input to chassis |
| Hold‑up Time | 110 Vac 18 ms, 230 Vac 132 ms |
| Operating Temperature Range | 0 °C to +70 °C (operating) |
| Safety Approvals | EN60601, UL2601, CE, VDE, CSA |
The supply accepts 85‑264 VAC or 120‑370 VDC input.
Typical efficiency is about 70 % at nominal input.