7SR45 Performance Specification
© 2017 Siemens Protection Devices Limited Chapter 3 Page 8 of 10
Table 1-14 Product Safety Test
Type Test Reference Parameters Values
Clearances and
Creepage Distances
IEC/EN 60255-27: Edition 2:
2013-10
Clearances and
creepage distances
between external
circuits mutual and
to the enclosure
≥ 4 mm
IP Rating IEC/EN 60255-27: Edition 2:
2013-10
For Unit Front side IP52
For Unit Rear side IP20
Impulse Voltage
#
IEC/EN 60255-27: Edition 2:
5 kV, 5 +ve, -ve pulses
AC Dielectric Voltage
#
IEC/EN 60255-27: Edition 2:
2013-10
Test voltage (AC): 2 kV After test, the
relay should be
operative
(Reinforced
Insulation with
communication
circuit)
Test frequency: 50 Hz
Test duration: 1 min
Insulation Resistance
#
IEC/EN 60255-27: Edition 2:
2013-10
Test voltage: 500 V DC
> 100 M ohm
Test duration: > 5 s
Protective Bonding
Resistance
IEC/EN 60255-27: Edition 2:
2013-10
Test voltage: < 12V
AC/DC
< 0.1 Ohm
Test duration: 1 min
Bonding resistance
Protective Bonding
Continuity
IEC/EN 60255-27: Edition 2:
2013-10
Accessible conductive
parts should be bonded
with the protective
conductor terminal
Low current
continuity test
Flammability of
Insulating Materials,
Components and Fire
enclosures
IEC/EN 60255-27: Edition 2:
2013-10
Structure Part Standard for
insulating
material of
flammability class
Terminals Class UL 94 V-0
Terminal Mounting Class UL 94 V-0
Wiring (CT) (N)2GFAF (VDE)
Components mounting Class UL 94 V-0
Enclosure Class UL 94 V-0
PCB Class UL 94 V-0
LCD Class UL 94 V-0
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