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What is the difference between the NSR251 key and the DSR251 key?

Issue:
What is the difference between the NSR251 panelboard key and the DSR251 panelboard key?

Product line:
Circuit breaker panelboards and accessories sold and supported in the USA.

Environment:
Selection

Cause:
Product characteristics

Resolution:
The NSR251(silver colored) key will open all standard Nema 1 trim locks. The DSR251(brass colored) key will open all standard Nema 3R plus all standard Nema 1 trim locks.


 
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