Power isolation transformer series now certified

Additionally, M4L transformers can be customised within a variety of configurations while maintaining all their UL Safety Agency approvals, usually at no additional cost. Incorporating double reinforced insulation, the M4L series is suited for a diversity of safety-critical applications such as fire alarms and security systems, emergency lighting, deep mining exploration, hot tubs, spas and patient-connected medical devices. 

The series' construction utilises low-loss silicon steel for higher efficiency and UL 94V0 flame rated polymers. In addition, their UL Class F rated insulation system permits operation in high ambient temperatures up to 80°C. Moreover, their non-concentric construction provides superior isolation, less than 30µA leakage current, and more than 12mm of creepage distance between the primary and secondary windings. All M4L transformers are rated to 4KV hipot, however they were successfully tested to 12KV without breakdown.

The UL certification of the M4L series includes safety standards UL 60601-1, UL 60950-1, UL 1097 and UL 2097. Certification to these standards assures the parts can be used in products and appliances covered by a variety of UL standards including 864, 913, 916, 924, 1012, and 1238.

Engineered to facilitate secure and rapid connectivity as well as to prevent accidental shock, the M4Ls incorporate Touch-Safe terminals (IP20) that provide a screw/binding clamp for hard wiring, together with 3/16" and 1/4" Fast-On connections. Their compact size and vertical-mount configuration accommodates space-restricted enclosures, optimises installation flexibility and allows easy access for terminating.

Parts are offered with power ratings of 300, 450, 600 or 1000VA and input voltage's range from 100 to 480V to further promote design flexibility.