The standard configuration (with no options C, D, or E selected) provides an input power terminal block, and no branch circuit protection.
| Option |
Option Code Letter
|
Description |
| Circuit Breaker |
E
|
This option provides branch circuit protection by means of a circuit breaker with operating handle, and a minimum Interrupting Capacity of 25kA for 240V, 18kA for 480V, and 14kA for 600V packages. |
| Circuit Breaker |
C
|
This option provides branch circuit protection by means of a circuit breaker with operating handle, and an Interrupting Capacity of 65kA and except for 600V packages where the Interrupting Capacity is 50kA for 1 through 150HP, and 25kA for 200 and 250HP. |
| Disconnect |
D
|
This option provides a non-fused disconnect with operating handle.
This option provides no Branch Circuit Protection by itself. |
| Input Fuses |
F
|
This option provides Class J drive input fuses with a 100kA Interrupting Rating and provides drive branch circuit protection. |
| Line Reactor |
R
|
No form of input impedance is normally required for the A1000 Configured. A 3% line reactor is available if additional impedance is desired, usually to reduce the effects of line-side transients and input current THD. |
| DC Bus Reactor |
X
|
Large HP drives include 3% bus impedance. A 3% bus reactor is available for small HP drives (see table) if additional impedance is desired, usually to reduce the effects of line-side transients and input current THD. |
| Load Reactor |
H
|
No form of output impedance is normally required for the A1000 Configured. A 3% load reactor is available if additional output impedance is desired, usually for long lead-lengths or noise reduction. |
| Cap Filter |
N
|
The standard configuration does not include a filter. The cap filter is a delta-wye capacitive network, used to help attentuate electrical noise. |
| Surge Suppressor |
2
|
This option will offer some degree of protection from transient surges coming through the power line cables. Lightning strikes are the most common source of surges. (This option is only available for the NEMA 3R enclosure.) |
| Space Heater |
3
|
This option maintains the internal cabinet temperature to reduce condensation. (This option is only available for the NEMA 3R enclosure.) |
| 50 Degree C Ambient |
4
|
This option will allow the enclosure to be operated in an ambient temperature of 50°C (122°F). The standard basic design is rated for 40°C ambient. (This option is only available for the NEMA 3R enclosure.) |
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