18
Installation
Model 2001-AC
Federal Signal www.fedsig.com
Connecting the Transformer/Rectifier
SHOCK HAZARD: Disconnect AC power and make sure the Transformer is de-
energized before making or changing electrical connections. Failure to do so may
result in property damage, serious injury, or death.
To connect the Transformer/Rectifier:
1. Route 1-inch conduit between the user-supplied fused disconnect switch and the us-
er-supplied conduit fitting in the bottom of the Transformer/Rectifier enclosure.
2. Route two user-supplied wires through the conduit that was just installed between
the Transformer/Rectifier and the fused disconnect switch. Use 10 AWG or larger.
Connect the power wires as follows:
• H1-H2 for 208 VAC
• H1-H3 for 220 VAC
• H1-H4 for 240 VAC
"Figure 6 Transformer/Rectifier Schematic Diagram" on page 19.) Cap the
unused taps.
3. Follow the instructions included with the lightning protector (supplied) and install it in
the AC service disconnect.
4. Route 1-inch conduit between the Transformer/Rectifier Enclosure and the Contactor
Enclosure.
5. Route two user-supplied wires through the conduit that was just installed between
the Transformer/Rectifier and Contactor Enclosure. Use 3 AWG or larger.
6. Connect a red or (+) labeled wire from the Transformer/Rectifier terminal block (+) to
F1-2 of the Contactor Enclosure (user-supplied 5/16-inch ring terminal required).
7. Connect a black or (-) labeled wire from the Transformer/Rectifier terminal block (-) to
TB1 2 of the Contactor Enclosure (user-supplied 5/16-inch ring terminal required).
8. Remove any metal shavings or debris from the enclosures.
9. Ground the Transformer/Rectifier enclosure to earth ground.
