Item number: 2-539-198, Version: 3 241016TK 17 of 20
EN
3.4. Tightening Torques of the Terminal Box
Fixing screw for terminal box
4Nm
Grounding screw
2Nm
During installation of cable gland and cable, the tightening torque is to be defined according to the
manufacturer’s instructions and requirements of the valid standards and regulations.
Grounding screw
Cable gland
Fixing screw for terminal box
3.5. Explosion Protection Classification
Hengstler explosion - proof shaft encoders are classified according to
EC-TYPE-Examination Certificate: ITS14ATEX17991X
IECEx Certificate: IECEx ITS 14.0062X
Gas:
Ex II 2 G Ex d IIC T4 Gb
Dust:
Ex II 2 D Ex tb IIIC T130 Db
Ambient temperature: -40°C
≤
Ta
≤
70°C
(as per EN 60079-0:2012; EN 60079-1:2007, EN60079-31:2009; IEC 60079-0:2011
;
IEC 60079-1:2007-04
;
IEC
60079-31:2008)
This encoder is designed for a connection to a SELV power supply. It is not allowed to connect the
encoder to a direct current line voltage
.
According to Norm EN 61326-1 DC supply connections to the encoder are treated as input/ output
signal lines. For cable lengths greater than 30 m and outdoor applications additional measures must
be implemented in order to comply with CE.
Installation environment and wiring are influential on the encoder`s EMC: Thus the machine builder
must secure EMC of the whole facility (device) by appropriate filtering measures .
In further processing of the encoder ensure a neat ESD - protection.
The occurring temperature and the ambient conditions (influence of media, UV-light) need to be con-
sidered. In addition, self-heating needs to be considered!
The terminal block in the terminal box is suitable for wire cross-sections of 0.5-1.5 mm².
The gap width are smaller then specified in the standard. Moreover some gap lengths are exceeding
tabular values. Therefore repairs according to tabular values are not allowed.
