Siemens SIDOOR AT40 System Manual page 134

Power supply
7.3 SIDOOR TRANSFORMER UL
Installation and maintenance work
Installation and maintenance work may only be performed by qualified personnel.
• If the SIDOOR TRANSFORMER UL is supplied by two ungrounded wires (for example L1, L2),
fusing has to be implemented by a 2-pole miniature circuit breaker with coupled switching
element. When there is a connection between an ungrounded wire (L) and a grounded wire
(N), only a 1-pole miniature circuit breaker in the L-branch is required.
• Make sure that the on-site (customer-provided) fuse meets these requirements:
– For the CE setting with a miniature circuit breaker to IEC60898-1, 10 A tripping
– For the NFPA setting miniature circuit breaker to UL489 listed, CCN DIVQ, UR≥240VAC,
Procedure
• Connect the wires as shown in the drawing.
• Be sure to connect the protective ground (green-yellow) correctly.
• Ensure that there is a mains disconnecting device near the equipment that is easily accessible
clearly marked (for example, using a suitable miniature circuit breaker).
• The description of the complete electrical setting and commissioning of the controller and of
the associated components is available in the section Connecting and commissioning
(Page 157).
132
WARNING
characteristic C or 6 A tripping characteristic D
for example 1-pole miniature circuit breaker: 5SY4110-7 or 5SY4106-8
e.g. 2 pole miniature circuit breakers: 5SY4210-7 or 5SY4206-8
10 A Class C or 6 A Class D
e.g. 1-pole miniature circuit breakers: 5SJ4110-7HG41 or 5SJ4106-8HG41
e.g. 2-pole circuit breaker: 5SJ4210-7HG41 or 5SJ4206-8HG41
AT40 and ATD400V for elevators
System Manual, 06/2022, A5E42192709-AH