Data Sheet for Product

Flowrite
TM
599 Series Rack & Pinion Valves Technical Instructions
Document No. 155-541P25
October 15, 2018
Siemens Industry, Inc. Page 5
Figure 1. Acceptable NEMA 2 Mounting Positions.
Wiring
All wiring must conform to NEC, and to local codes and regulations.
Use earth ground isolating step-down Class 2 transformers. Do not use autotransformers.
Determine the supply transformer rating by summing the total VA of all actuators used.
The maximum rating for a Class 2 step-down transformer is 100 VA.
Table 2 shows the recommended maximum actuators per Class 2 circuit and includes a
safety factor of 80% of the transformer VA. Operating additional actuators requires
additional transformers or separate 100 VA power trunks.
Table 2. Recommended Maximum Power Consumption
(VA) for a Class 2 Step-Down Transformer.
Actuator
Power
Consumption
Actuator per Class 2
Supply Circuit
GCA12x.
8 VA
10
GCA16x
9 VA
9