Enclosure openings with wires 61(Bled/WG40)56 June 2019 Soldered Connections Enclosure openings with wires

Example PCB with soldered connections and the connectors that will be attached to the PCB

PCB in an enclosure per 22.x.1 - Material needs to be metal, ceramic, or 5VA plastic. - opening in side wall of enclosure Opening is OK < 3 mm opening is NOT OK (opening is > 3mm)

Enclosure top is added per 22.x.1 - Material needs to be metal, ceramic, or 5VA plastic. - wires removed to visualize the connector fit - one gap is Ok and the other is too large Gap is NOT OK (gap is > 3mm) Gap is OK

For openings with a gap larger than 3 mm, apply the 20 mm by 50 mm cylinder vertically at the opening on the barrier surface

If wiring is present in the flame cylinder that is above an opening in the barrier and the orientation is more than 30 degrees from the horizontal then the wire must meet ISO 6722-1:2011 clause 5.22 or equivalent. Cylinder applied vertically at the opening on the barrier surface per 22.X.1

Slides to create Figure 15

Example PCB with soldered connections and the connectors that will be attached to the PCB Gap is OK Gap is NOT OK (gap is > 3mm) Opening is OK < 3 mm opening is NOT OK (opening is > 3mm) Enclosure around PCB per 22.x.1 - Material needs to be metal, ceramic, or 5VA plastic. - wires removed to visualize the connector fit - one connector gap is Ok and the other is too large - one housing opening is Ok and the other is too large

For openings with a gap larger than 3 mm, apply the 20 mm by 50 mm cylinder vertically at the opening on the barrier surface If wiring is present in the flame cylinder that is above an opening in the barrier and the orientation is more than 30 degrees from the horizontal then the wire must meet ISO 6722-1:2011 clause 5.22 or equivalent. Cylinder applied vertically at the opening on the barrier surface per 22.X.1