circuit board. The quality control on the PCB and the thorough type-testing performed by
the testing agency (ETL) eliminates the need for further testing on the devices that are
downstream from the mains isolation device.
Devices with an Internal Power Supply
The internal power supplies are CB Certified and UL Registered. These power supplies
are an open frame style (no protective enclosure). Therefore, the products that contain
an internal power supply require electrical safety testing. Open case repairs of devices
with an internal power supply require the recommended testing because those devices
contain the open frame power supply, and the testing involves the manipulation of wiring
that carries 120 or 240 volts AC. Welch Allyn does not recommend HiPot / Dielectric
Withstand testing because of a potential stress on the insulation system, which could
cause premature failures.
Ground stud connector
This device is equipped with a ground stud (equipotential terminal) for electrical safety
testing, and to connect a potential equalization conductor. To ensure use of the proper
connector for safety testing, the ground stud is recessed into the system’s housing. Do
not use “alligator” style clamps or connectors. The mating electrical connector requires
self assembly by crimping it to appropriate connecting leads.
The mating connector (Type POAG-KBT6DIN, order number 15.0010) consists of the
right-angled socket and insulator, as shown in the next figure. You can purchase the
mating connector and the crimping pliers from the manufacturer, Multi-Contact:
http://www.multi-contact.com.
Item
Description Type Order no.
The mating electrical connector, a right-angled socket made of nickel-
plated brass with Multilam™ made of gold-plated, hard-drawn copper
alloy.
POAG-WB6DIN 01.0404
Insulator T-POAG6 15.5004-24
Crimping pliers with mandrel crimp for 4 mm² and 6mm² flexible
conductors.
POAG-PZ-N 14.5009
164 Electrical safety testing Welch Allyn Connex
®
Integrated Wall System
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