It operates on a 48 V AC supply at 50/60 Hz or a 48 to 60 V DC control circuit, drawing 4.5 VA / 4.5 W holding power. The undervoltage release opens the breaker when the voltage falls between 0.35 and 0.7 Un, and allows closing only above 0.85 Un. Response time is 40 ms ± 5% for the MTZ1 frame, and 90 ms ± 5% for MTZ2 and MTZ3 frames — fast enough to protect sensitive loads from sustained undervoltage events.
Sourcing Decision — What to Do Next
If your BOM line calls for LV839261, the part is available through our supply network — sourced and quoted to order. Submit an RFQ with your target quantity and required delivery window; we will confirm availability and pricing at that point. No direct pin-compatible replacement is listed in the official Schneider lifecycle documentation for this order code. For cross-reference support, include the breaker frame (MTZ1, MTZ2, or MTZ3) and the existing control voltage in your RFQ notes so we can match the closest available alternative.