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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

Environment:
Powerpact B-Frame Circuit Breakers

Resolution:
Following are the part numbers and voltage ratings of undervoltage trip accessories for Powerpact B circuit breakers.
LV426801 (24Vac and 24Vdc)
LV426802 (48Vac and 48Vdc)
LV426803 (110-130Vac and 125Vdc)
LV426804 (220-240Vac)
LV426805 (208-277Vac)
LV426806 (380-415Vac)
LV426807 (380-480Vac)
LV426815 (250Vdc)
  • 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

Standard AC

24 Vac 50/60 Hz

UK

LV426801

48 Vac 50/60 Hz

UL

LV426802

110–130 Vac 50/60 Hz

UA

LV426803

208–240 Vac 50/60 Hz

UC

LV426804

277 Vac 60 Hz

UD

LV426805

380–415 Vac 50 Hz

UF

LV426806

440–480 Vac 60 Hz

UH

LV426807

Standard DC

24 Vdc

UO

LV426801

48 Vdc

UP

LV426802

125 Vdc

UR

LV426803

250 Vdc

US

LV426815

Pre-wired MN
(18 AWG wire lead length = 1 m)

Pre-wired AC

24 Vac 50/60 Hz

UKYH

LV426821

48 Vac 50/60 Hz

ULYH

LV426822

110–130 Vac 50/60 Hz

UAYH

LV426823

208–240 Vac 50/60 Hz

UCYH

LV426824

277 Vac 60 Hz

UDYH

LV426825

380–415 Vac 50 Hz

UFYH

LV426826

440–480 Vac 60 Hz

UHYH

LV426827

Pre-wired DC

24 Vdc

UOYH

LV426821

48 Vdc

UPYH

LV426822

125 Vdc

URYH

LV426823

250 Vdc

USYH

LV426835



*Operating Voltages for the Undervoltage releases are visible through the front cover.

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