"8/70#SPST
The 8/70#SPST has a straight stem, and rounded handle end. The PC has pintle hook loop mounting. The DIF has a lanyard loop."
The 8/70#SPST close-declosture diferencial relay of type P74AA1 consists of a three point BC circuit carrier (P219 type) mounted on an L section housing with cover.
Johnson Controls P74AA-1, Inc. P74AA1 8/70#SPST,CLOSE-DECR#DIF,36"
The Protectair P74AA1 is a 30/70#SPST,close-decr#dif on 8" centers. It's a solid-state circuit breaker.
The Johnson Controls 8/70-SPST, 1 SPDT (Single Pole/Single Throw) , Close = Decr (Decrease) , SPDT are Dual Circuit, no LED's Available On These Buttons, with 36" Leads
The P74AA1 is a close-decr-dif combination 8/70 Single Pole/Double Throw (SPDT) Inverse-time, Center-Off, Normally-Open (NO) Decade Control for lighting and appliance loads that require high energy efficiency. The Eight-time control on the P74AA1 provides eight distinct ON and OFF periods for the controlled load. This combination allows maximum flexibility of equipment operation in concert with automatic control."
This Single Pole, Double Throw (SPDT) switch offers a contact rating of 0.25A at 200VAC, and features offset connectors. It is compatible for use with 300 series metal enclosures."