Specifications

Crestron Commercial Lighting Design Guide

24 Doc. 4775B | Crestron.com

Find the row in the table that matches your choice in step 1. In that row is the maximum number of loads for each

cabinet size. Choose a cabinet size, and do not exceed the maximums when designing the panel. See page 28

for more information on the cabinet sizes.

Cabinets

Medium

Large

Extra Large

Max Combined Size

Maximum #

of Loads

MLO 30 42 42

MCB 27* 39* 39*

*If using 120/208V and 125A MCB, reduce the maximum number of loads shown by three.

Now choose quantities of SW10, SW16, HSW8, HSW12, and FLV8 modules, but do not exceed the maximum

combined size and maximum number of loads just determined. Example:

1SW10, 1SW16, 2FLV8

Combined Size = (1 × 2) + (1 × 3) + (2 × 3) = 11

# of loads = (1 × 10) + (1 × 16) + (2 × 8) = 42

The cabinet will need to be Extra Large because it fits 11 spaces and 42 loads. This will only work with

the MLO feed type.

3. Voltage GLPS-C-___-___-___-___-___-___-___-___

To specify the circuit breaker voltage, enter “120” for 120/208V or “277” for 277/480V.

4. AIC Rating GLPS-C-___-___-___-___-___-___-___-___

Choose one of the following values from the appropriate column to specify the Ampere Interrupting Capacity of

the circuit breakers.

120 Volt

277 Volt

10K

18K

22K

35K

65K

What is AIC?

When a short circuit occurs, a large amount of current flows into the circuit breaker

and it trips. The Ampere Interrupt Capacity rating is the maximum current the breaker

can safely interrupt. If the short circuit current exceeds the AIC rating of the breaker,

the circuit breaker may fail. For safe operation, the AIC rating must exceed the

available fault current at the panel.

Note: It is possible to wire in fractions of modules when there are not enough breakers available for the modules

you want. In this circumstance please call Crestron Sales Support Services.