The Utility Relay Co. B-291-MP Secondary Injection Test Set Is A Single-Phase Test Set Specifically Designed For Testing The Operation Of The AC-PRO-MPTM Microcontroller Based Trip Units Manufactured By Utility Relay Co
The AC-PRO-MP Is A Plug-In, Direct Replacement Trip Unit For The STR Trip Units On The Merlin Gerin & Square D Masterpact MP Breakers
.png)
