65www.ittcannon.com
Dimensions shown in mm
Specifications and dimensions subject to change
VBN PRODUCT SAFETY INFORMATION
THIS NOTE MUST BE READ IN CONJUNCTION WITH THE PRODUCT DATA SHEET/CATALOG. FAILURE
TO OBSERVE THE ADVICE IN THIS INFORMATION SHEET AND THE OPERATING CONDITIONS
SPECIFIED IN THE PRODUCT DATA SHEET/ CATALOG COULD RESULT IN HAZARDOUS SITUATIONS.
1. MATERIAL CONTENT AND PHYSICAL FORM
Electrical connectors do not usually contain hazardous materials. They
contain conducting and non-conducting materials and can be divided into
two groups.
a) Printed circuit types and low cost audio types which employ all plastic
insulators and casings.
b) Rugged, Fire Barrier and High Reliability types with metal casings and
either natural rubber, synthetic rubber, plastic or glass insulating materials.
Contact materials vary with type of connector and also application and are
usually manufactured from either: Copper, copper alloys, nickel, alumel,
chromel or steel. In special applications, other alloys may be specified.
2. FIRE CHARACTERISTICS AND ELECTRIC SHOCK HAZARD
There is no fire hazard when the connector is correctly wired and used
within the specified parameters. Incorrect wiring or assembly of the
connector or careless use of metal tools or conductive fluids, or transit
damage to any of the component parts may cause electric shock or burns.
Live circuits must not be broken by separating mated connectors as this
may cause arcing, ionization and burning. Heat dissipation is greater at
maximum resistance in a circuit. Hot spots may occur when resistance is
raised locally by damage, e.g. cracked or deformed contacts, broken
strands of wire. Local overheating may also result from the use of the
incorrect application tools or from poor quality soldering or slack screw
terminals. Overheating may occur if the ratings in the product Data Sheet/
Catalog are exceeded and can cause breakdown of insulation and hence
electric shock. If heating is allowed to continue it intensifies by further
increasing the local resistance through loss of temper of spring contacts,
formation of oxide film on contacts and wires and leakage currents
through carbonization of insulation and tracking paths. Fire can then result
in the presence of combustible materials and this may release noxious
fumes. Overheating may not be visually apparent. Burns may result from
touching overheated components.
3. HANDLING
Care must be taken to avoid damage to any component parts of electrical
connectors during installation and use. Although there are normally no
sharp edges, care must be taken when handling certain components to
avoid injury to fingers. Electrical connectors may be damaged in transit to
the customers, and damage may result in creation of hazards. Products
should therefore be examined prior to installation/ use and rejected if
found to be damaged.
4. DISPOSAL
Incineration of certain materials may release noxious or even toxic fumes.
5. APPLICATION
Connectors with exposed contacts should not be selected for use on the
current supply side of an electrical circuit, because an electric shock could
result from touching exposed contacts on an unmated connector. Voltages
in excess of 30 V ac or 42.5 V dc are potentially hazardous and care should
be taken to ensure that such voltages cannot be transmitted in any way to
exposed metal parts of the connector body. The connector and wiring
should be checked, before making live, to have no damage to metal parts
or insulators, no solder blobs, loose strands, conducting lubricants, swarf,
or any other undesired conducting particles. Circuit resistance and
continuity check should be made to make certain that there are no high
resistance joints or spurious conducting paths.
Always use the correct application tools as specified in the Data Sheet/
Catalog. Do not permit untrained personnel to wire, assemble or tamper
with connectors. For operation voltage please see appropriate
national regulations.
IMPORTANT GENERAL INFORMATION
(i) Air and creepage paths/Operating voltage.
The admissible operating voltages depend on the individual applications
and the valid national and other applicable safety regulations. For this
reason the air and creepage path data are only reference values. Observe
reduction of air and creepage paths due to PC board and/or harnessing.
(ii) Temperature
All information given are temperature limits. The operation temperature
depends on the individual application.
(iii) Other important information
Cannon continuously endeavors to improve their products. Therefore,
Cannon products may deviate from the description, technical data and
shape as shown in this catalog and data sheets.