Data Sheet for Product

Submittal Sheet BT300 HVAC Drives Electronic Bypass (E-Bypass) Options
Document No. 154-129
February 19, 2018
Page 6 of 10 Siemens Industry, Inc.
Wiring Diagrams
NOTES:
1. Branch circuit protection to be provided by installer, per UL508A, if not provided with drive.
2. Control and communication wiring should be 300V UL minimum.
3. Communication wiring should be run with maximum separation possible from all other wiring.
4. Essential service mode operates the motor full speed (bypass) with no protection for the motor or system.
5. Ensure that automatic bypass will not damage the system before activating.
6. See Siemens BT300 Bypass Operator’s Manual (DPD01391) for proper fuse and wire sizes.
7. See Siemens BT300 Operator’s Manual (DPD01149) for BT300 input/output control signal wiring details.
Figure 4. Factory As-Built of Power Wiring
Motor Rotation Correction Wiring
Figure 5. Rotation Correction – VFD Correct, Bypass Reversed.