Datasheet

Relays for functional safety
Safety relays PNOZsigma
PNOZ s50
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: [phone], Telefax: [phone], E-Mail: [e-mail]
2016-09
938
Supplementary data
The max. permitted load current at the power circuits O1+/O1- and O2+/O2- depends on
the
} Ambient temperature.
} Distance between the PNOZ s50 and adjacent devices.
} Number of power circuits connected (one or two).
} Size of the supply voltage to the power circuits at B1/B2.
Distance re-
quired between
adjacent
devices
Ambient tem-
perature
Number of
power circuits
Max. permitted
output current
at U
B1/B2
= 24 V
Max. permitted
output current
at U
B1/B2
= 48 V
Yes 45°C 1 6.5 A 3.25 A
Yes 55°C 1 5.5 A 2.75 A
Yes 45°C 2 4.5 A 2.25 A
Yes 55°C 2 4.0 A 2.0 A
No 45°C 1 6.0 A 3.0 A
No 55°C 1 5.0 A 2.5 A
No 45°C 2 4.0 A 2.0 A
No 55°C 2 3.5 A 1.75 A
Use of the devices in accordance with UL
Ambient tem-
perature
Number of
power circuits
Max. permitted
output current
at U
B1/B2
= 24 V
Max. permitted
output current
at U
B1/B2
= 48 V
Utilisation cat-
egory
45°C 1 6.5 A 3.25 A Pilot Duty
55°C 1 5.5 A 2.75 A
45°C 2 4.5 A 2.25 A
55°C 2 4.0 A 2.0 A
When using the devices in accordance with UL, please note the following:
} The ambient temperature is understood to be the Surrounding Air Temperature.
} Appropriate measures e.g (tempering of the control cabinet) should be used to ensure
that the stated values are maintained when devices are installed without a distance.