PSC129-2IR Power-One, PSC129-2IR Datasheet - Page 8

• Manufacturer Part Number: PSC129-2IR
• Description: Psc Series Extended Positive Switching Regulators Benign
• Manufacturer: Power-One

Safety and Installation Instructions
Installation Instruction
Installation of the switching regulators must strictly follow
the national safety regulations in compliance with the enclo-
sure, mounting, creepage, clearance, casualty, markings
and segregation requirements of the end-use application.
Check for hazardous voltages before altering any connec-
tions. Connections can be made using fast-on or soldering
technique.
The input and the output circuit are not separated, i.e. the
negative path is internally interconnected!
The units should be connected to a secondary circuit.
Do not open the module.
Ensure that a unit failure (e.g. by an internal short-circuit)
does not result in a hazardous condition. See also: Safety
of operator accessible output circuit.
Cleaning Agents
In order to avoid possible damage, any penetration of
cleaning fluids is to be prevented, since the power supplies
are not hermetically sealed.
Protection Degree
The protection degree is IP 20.
Standards and Approvals
All switching regulators are UL recognized according to UL
1950, UL 1012 and EN 60950, UL recognized for Canada to
CAN/CSA C22.2 No. 234-M90.
The units have been evaluated for:
• Building in,
• Operational insulation from input to output and input/out-
• The use in an overvoltage category II environment,
• The use in a pollution degree 2 environment.
The switching regulators are subject to manufacturing sur-
veillance in accordance with the above mentioned UL and
CSA and with ISO 9001 standards.
Isolation
Electric strength test voltage between input interconnected
with output against case: 500 VDC, 1 s.
This test is performed in the factory as routine test in ac-
cordance with EN50116, IEC/EN 60950 and UL 1950 and
should not be repeated in the field. Power-One will not
honour any guarantee claims resulting from electric
strength field tests.
REV. MAY 12, 2004
put to case,
Page 8 of 12
Positive Switching Regulators (Benign)
Safety of Operator Accessible Output Circuit
If the output circuit of a switching regulator is operator-ac-
cessible, it shall be an SELV circuit according to IEC/EN
60950 related safety standards
The following table shows some possible installation con-
figurations, compliance with which causes the output circuit
of the switching regulator to be an SELV circuit according to
IEC/EN 60950 up to a nominal output voltage of 30 V.
However, it is the sole responsibility of the installer or user
to assure the compliance with the relevant and applicable
safety regulations.
More information is given in: Technical Information: Safety
& EMC .
PSC Series Extended Data Sheet