SICK GTB20 Manual De Instrucciones página 24

OPERATING INSTRUCTIONS
2 Safety information
2.1 General safety notes
2.2 Notes on UL approval
en
2.3 Intended use
24 O P E R A T I N G I N S T R U C T I O N S | GTB20
Connection, mounting and configuration of the product must only be car‐
ried out by qualified personnel.
This product does not constitute a safety component as defined in the
NO
Machinery Directive.
2006/42/EC
SAFETY
Do not install the product in places exposed to direct UV radiation (sun‐
light) or other weather conditions.
The product must be adequately protected against moisture and contami‐
nation.
UL approval
Table 1: UL approval
G20 products with DC voltage supply and con‐
nector or cable or cable with connector
G20 products with UC voltage supply with
cable and cable with connector
G20 products with terminal chamber (DC and
UC voltage supply)
Gxx20x-QK and Gxx20x-QL
The device shall be supplied from an isolating transformer having a secondary overcur‐
rent protective device that complies with UL 248 to be installed in the field rated either:
a) max 5 amps for voltages 0 V ~ 20 V (0 V ~ 28.3 V peak), or
b) 100 / Vp for voltages of 20 V ~ 30 V (28.3 V ~ 42.4 V peak).
Alternatively, they can be supplied from a Class 2 voltage supply.
UL Environmental Rating: Enclosure type 1
For use in NFPA 79 Applications only.
The GTB20 is an opto-electronic photoelectric proximity sensor (referred to as "sensor"
in the following) for the optical, non-contact detection of objects, animals, and persons.
If the product is used for any other purpose or modified in any way, any warranty claim
against SICK AG shall become void.
8026846.1GXN/2022-11-05 | SICK
Subject to change without notice