ISUPS2B004 Rev 1
Page 17 of 70
Ampcontrol Pty Ltd
– ABN 28 000 915 542
ISUPS 300Wh V2 USER MANUAL
ISUPS2B004 R2
– DEC/17
4.5 Electrical Installation
When installing the ISUPS, consideration must be given to I.S. parameter matching, cable selection,
cable termination, cable marking and cable restraint. The installation must be carried out with reference
to standards appropriate for the application, industry and/or locale. These standards include, but are not
limited to: AS/NZS 3000, AS/NZS 1972, AS/NZS 60079 (Parts 14, 17 & 25) & AS/NZS 4871. Failure to
comply with standards could lead to a dangerously installed system.
Good installation practices are to be followed to minimise the stress on the terminations and the ISUPS.
The various input / output parameters of Section 4.3.1 must be taken into account during installation.
1. Mains power is applied to the Ex e terminal compartment. An IP66 or better, M20 Ex e or Ex d
certified cable gland for group I applications is required.
2. The Ex e compartment must not be opened when an explosive atmosphere is present.
3. Unused cable entries into the Ex e terminal compartment must be closed with Ex e or Ex d
certified blanking elements. The blanking element supplied with the ISUPS must be tightened to
a torque of 20Nm to achieve an adequate seal.
4. Unused cable entries into the Ex i terminal compartment must be closed with IP66 rated blanking
elements.
5. The intrinsically safe output and digital I/O are accessible via the intrinsically safe terminal
compartment. The use of applicable M16 or M20 cable glands is required to ensure the IP66
rating of the enclosure is maintained and that requirements of local Mines Regulations for Exe
and Intrinsically Safe “ia” wiring are complied with.
6. For terminal connection details see Appendix Drawing ISUPS2Z005.
4.5.1 Earthing
1. It is a safety requirement that the UPS is connected to earth. This connection can be to either the
internal Ex e terminals 2 or 3, or the external earth stud.
2. To achieve full EMC compliance the output and user I/O cables must be screened with the
screen connected to the earth stud within the IS terminal compartment.
