Netra T4 Dc100 System - Sun Microsystems Netra T4 AC100 Service And System Reference Manual

B.2.1.3 Overcurrent Protection
The AC outlet socket should be protected by a 15 A double-pole double-throw circuit
breaker.
B.2.2

Netra T4 DC100 System

B.2.2.1 DC Input
TABLE 12-1
Electrical Element
Voltage
Max. operating current
Max. inrush current
1. The DC power supply range is -40VDC to -75VDC.
B.2.2.2 Source Site Requirements
The DC source must be:
–48 VDC or –60 VDC nominal centralized DC power system
Electrically isolated from any AC power source
Reliably connected to earth (that is, the battery room positive bus is connected to
the grounding electrode)
Rated for a minimum of 20 A per feed pair
Note – The Netra T4 DC100 system must be installed in a restricted access location.
The IEC, EN and UL 60950 define a restricted access location as an area intended for
qualified or trained personnel only and having access controlled by a locking
mechanism, such as a key lock or an access card system.
DC Power Supply Input Requirements
Requirement
1
-48 VDC / -60 VDC
12 A @ -48 VDC / 10 A @ -60 VDC
30 A @ -48 VDC / 24 A @ -60 VDC
Appendix B Product Specification B-3