The undervoltage release is an electronic module used to open the circuit breaker when the monitored voltage drops below 35-60PERC of its rated value. The undervoltage release "resets" when the monitored voltage is re-established allowing the circuit breaker to reclose (the sealing voltage of the UVR is 60-85PERC of its rated voltage). An undervoltage release trip operation is produced by the MicroVersaTrip Plus unit in response to a signal from the undervoltage release module. This allows the trip unit to record, display, distinguish an d comm un icate (in MicroVer saTri p PM trip units) that the breaker opening event was due to undervoltage release. Operation of the undervoltage release module will prevent breaker contact closure, i.e. "kiss-free" operation. When energized, the undervoltage release supplies +24 Vdc power to the trip unit to power the display. Field installable. 5DCR Frame Rating Amps 2500

T-studs mount directly to the breaker and can be rotated for either vertical or horizontal bus connection. 4000 ampere T-studs are for vertical bus bars only. Catalog number includes one stud. Both copper and aluminum T-studs are tin plated. 8FCA Frame Rating Amps 3000

T-studs mount directly to the breaker and can be rotated for either vertical or horizontal bus connection. 4000 ampere T-studs are for vertical bus bars only. Catalog number includes one stud. Both copper and aluminum T-studs are tin plated. 0FCA Frame Rating Amps 2500

T-studs mount directly to the breaker and can be rotated for either vertical or horizontal bus connection. 4000 ampere T-studs are for vertical bus bars only. Catalog number includes one stud. Both copper and aluminum T-studs are tin plated. 8FCC Frame Rating Amps 4000

T-studs mount directly to the breaker and can be rotated for either vertical or horizontal bus connection. 4000 ampere T-studs are for vertical bus bars only. Catalog number includes one stud. Both copper and aluminum T-studs are tin plated. 0FCC Frame Rating Amps 3000

Substructures are available for both standard and Hi-Break Power Break II breakers. Holes are provided for bolting on a shelf or supports. Holes are provided in the primary stabs for bolting to busbars or terminal lugs. Substructure secondary disconnects are ordered and priced separately. OS16 Frame Rating Amps 800

The electrical operator mounts inside the front cover of the manually operated breaker. The accessory can be added to any Power Break II breaker in the factory or the field to provide electrical spring charging and charge indication. For remote closing, the remote close solenoid must be priced and ordered separately. All breakers are prewired to dedicated secondary terminals for easy field installation. When electrical operation is used, either a shunt trip or an undervoltage release accessory is required for remote opening. These accessories must be ordered and priced separately. 240R Frame Rating Amps 3000

Substructures are available for both standard and Hi-Break Power Break II breakers. Holes are provided for bolting on a shelf or supports. Holes are provided in the primary stabs for bolting to busbars or terminal lugs. Substructure secondary disconnects are ordered and priced separately. OS08 Frame Rating Amps 4000

The bell alarm switch provides remote indication of whether the circuit breaker has been tripped via open or closed SPDT switch elements, but remains unchanged during "On/Off" circuit breaker operation and during operation by the push to trip button. 600R Frame Rating Amps 3000

This accessory provides an electrically operated solenoid, which, when energized, closes the breaker. It is suitable for control interlock schemes in which manual closing capability would not be convenient or desirable. The breaker is provided with a manual close button which can be replaced by the Hidden "ON" Button accessory and/or sealed using the Limited Access Pushbutton Cover accessory. The remote closing accessory is continuously rated and has an anti-pump feature which prevents a motor operated breaker from repeatedly closing into a fault. Closing control voltage must be removed and re-applied for each breaker closure. 125R Frame Rating Amps 1600

Control wiring is connected through drawout secondary disconnects in the "TEST" and "CONNECTED" positions only. Up to 72 control circuits are possible through 36 position plug-style secondary disconnects mounted to each side of drawout breakers. One substructure disconnect (SPDOSD36S) must be ordered for each breaker when accessories or communications are used. When auxiliary switches are used along with any other electrical accessory or communications, two disconnects must be ordered. SPDOSD36

The bell alarm with lockout module combines both the bell alram and a manual lockout function. The bell alarm switch provides remote indication of whether the circuit breaker has been tripped via open or closed SPDT switch elements, but remains unchanged during "On/Off" circuit breaker operation and during operation by the push to trip button. Upon occurrence of a trip event, a mechanical pop-out target must be manually reset before the breaker can be reclosed.