🎛️ Safety Interlocks (Ground-First-Break-Last Auxiliary Contacts, Rotary Interlock Mechanism)

Tap-Off Box Rotary Interlock & Safety Ground Calculator

Model mechanical and electrical safety interlocks on busway tap-off boxes (Schneider Canalis / Siemens Sivacon): engineer Ground-First / Break-Last mechanical grounding stabs and door-defeat interlock switches preventing plug insertion or removal while energized under load, and electrical safety contracting profits.

1. Project & Operating Inputs

Installed Tap-Off Units (Unit Count e.g. 40 High-Current Tap-Off Drops)

Interrupting Current (kA e.g. 35 kA Withstand Short-Circuit Rating)

Customer Bid Price for Supplied Safety Interlock Array ($)

Silver-Plated Grounding Fingers, Rotary Cam Interlocks, Microswitches ($)

2. Financial Breakdown & Yield

GROUND-FIRST-BREAK-LAST

Turnkey Tap-Off Interlock Upgrade Profit

Industrial Electrical Safety Hardware Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost