Specifications

Page 1–10
FOCUS System Manual
Ambient temp. range of air- -20° to 60° C (derated per Table 1-6) ANSI C37.90
contacting equipment
Relative humidity Up to 95% (non-condensing) at 40° C (for 96 hours
cumulative) (ANSI/UL508)
Altitude Up to 1500 m (without derating) Up to 6000 m (using
Table 1-7)
SWC and FAST Transient All external user relay interfaces meet SWC and
FAST Transients of ANSI C37.90.1 and IEC 255-6
Dielectric Only isolated units and outputs, and all alarms;
2500 Vdc from each terminal to ground, derated per
Table 1-7, (IEC 255.5)
Electro-Magnetic Interface IEEE/ANSI C37.90.2
Compatibility
Table 1–4. Environmental Specifications
Rack
Net Weight (avg) Height Width Depth
Space
Lbs. Kg Inches mm Inches mm Inches mm
21 9.53 5.25 133.4 17.5 444.5 13.50 342.9 3 RU
Table 1–5. FOCUS Chassis Dimensions