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What are the UVR undervoltage releases available for the Powerpact B-frame circuit breakers?
Issue:
Part numbers for B-frame breaker MN shunt trip modules
Product Line:
Circuit Breakers
Resolution:
Following are the part numbers and voltage ratings of undervoltage trip accessories for Powerpact B circuit breakers.
LV426801 (24 Vac and 24 Vdc)
LV426802 (48 Vac and 48 Vdc)
LV426803 (110-130 Vac and 125 Vdc)
LV426804 (220-240 Vac)
LV426805 (208-277 Vac)
LV426806 (380-415 Vac)
LV426807 (380-480 Vac)
LV426815 (250 Vdc)
*Operating voltages for the undervoltage releases are visible through the front cover
Part numbers for B-frame breaker MN shunt trip modules
Product Line:
Circuit Breakers
Resolution:
Following are the part numbers and voltage ratings of undervoltage trip accessories for Powerpact B circuit breakers.
LV426801 (24 Vac and 24 Vdc)
LV426802 (48 Vac and 48 Vdc)
LV426803 (110-130 Vac and 125 Vdc)
LV426804 (220-240 Vac)
LV426805 (208-277 Vac)
LV426806 (380-415 Vac)
LV426807 (380-480 Vac)
LV426815 (250 Vdc)
- Trips the circuit breaker when the control voltage drops below 35% of its rated voltage.
- Between 35% and 70% of the rated voltage, opening is possible but not guaranteed.
- Above 70% of the rated voltage, opening does not take place.
- Continuous duty rated coil
- Circuit breaker closing is possible only if the voltage exceeds 85% of the rated voltage. If an undervoltage condition exists, operation of the closing mechanism of the circuit breaker will not permit the main contacts to touch, even momentarily (this is commonly called “Kiss Free”).
| Undervoltage Release | Voltage | Factory-Installed Suffix | Field-Installable Catalog Number | |
| MN | Standard AC | 24 Vac 50/60 Hz | UK | |
| 48 Vac 50/60 Hz | UL | |||
| 110–130 Vac 50/60 Hz | UA | |||
| 208–240 Vac 50/60 Hz | UC | |||
| 277 Vac 60 Hz | UD | |||
| 380–415 Vac 50 Hz | UF | |||
| 440–480 Vac 60 Hz | UH | |||
| Standard DC | 24 Vdc | UO | ||
| 48 Vdc | UP | |||
| 125 Vdc | UR | |||
| 250 Vdc | US | |||
| Pre-wired MN | Pre-wired AC | 24 Vac 50/60 Hz | UKYH | |
| 48 Vac 50/60 Hz | ULYH | |||
| 110–130 Vac 50/60 Hz | UAYH | |||
| 208–240 Vac 50/60 Hz | UCYH | |||
| 277 Vac 60 Hz | UDYH | |||
| 380–415 Vac 50 Hz | UFYH | |||
| 440–480 Vac 60 Hz | UHYH | |||
| Pre-wired DC | 24 Vdc | UOYH | ||
| 48 Vdc | UPYH | |||
| 125 Vdc | URYH | |||
| 250 Vdc | USYH | |||
*Operating voltages for the undervoltage releases are visible through the front cover
Released for:Schneider Electric USA
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