Siemens SIMATIC S7-400 Reference Manual page 32

Rack
2.3 UR2-H Rack 6ES7400-2JAx0-0AA0)
(1)
(2)
Danger of damage to equipment.
If you insert the power supply module in a slot that is not intended for power supply modules,
the module may be damaged. Slots 1 to 4 are permitted, whereby power supply modules
starting from slot 1 must be inserted without leaving gaps.
Make sure that power supply modules are only inserted in permitted slots. Take particular
notice of the option of swapping modules in slot 1 on rack II and slot 9 on rack I.
Specifications of the UR2-H rack
Number of single-width slots
Dimensions W x H x D (mm)
Material of the mounting rail
Weight (in kg)
Busses
32
System I
System II
CAUTION
Rack UR2-H
6ES7 400-2JA00-0AA0
2 x 9
482.5 x 290 x 27.5
Sheet steel
4,1
Segmented I/O bus,
segmented communication bus
Reference Manual, Ausgabe 11/2016, A5E00850736-08
UR2-H
6ES7 400-2JA10-0AA0
2 x 9
482.5 x 290 x 27.5
Aluminum
3,0
S7-400 Automation System Module Data