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