Schneider Electric Micrologic 5.0 A Electronic Trip Unit (Cat: M143R)
Up for sale is an authentic Schneider Electric Micrologic 5.0 A (Cat No: M143R / Part No: AAV73099) electronic trip control unit. Designed for Masterpact NT, NW, and Compact NS series low-voltage power circuit breakers. This model features an integrated digital ammeter LCD screen, current phase bargraph display, and selective LSI protection settings.
Key Technical Specifications:
Manufacturer: Schneider Electric
Product Range: Micrologic 5.0 A
Catalog Number: M143R
Part Numbers: AAV73099, 33072BA, W12156
Protection Functions:
Long-Time Protection (Ir, tr): Adjustable threshold ($0.4$ to $1 \times I_n$) and time delay ($0.5$ to $24\text{ s}$)
Short-Time Protection (Isd, tsd): Adjustable threshold ($1.5$ to $10 \times I_r$) and delay ($0$ to $0.4\text{ s}$) with $I^2t$ on/off
Instantaneous Protection (Ii): Adjustable threshold ($2$ to $15 \times I_n$ and OFF)
Metering / Display: Digital LCD screen for current measurement (Ammeter) and LED bargraph load indicator ($40\%$ to $100\%$)
Compatibility: Compatible with Schneider Electric / Square D / Merlin Gerin Masterpact NW and NT circuit breakers
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Visual Inspection & Order Terms
The item is sold strictly as pictured. Please inspect all high-resolution photos carefully to confirm part numbers, ratings, and cosmetic condition prior to purchasing.
Warranty & Return Policy
30-Day Money-Back Guarantee: 30 days return privilege for functionality assurance.
Exclusions: Warranty coverage is void in cases of physical mishandling, internal burnout/voltage surges, incorrect installation, or broken/tampered warranty seals.
Returns: Please contact us prior to shipping any item back. Items must be returned in the exact original condition dispatched.
Offers & Inquiries
Reasonable offers are always welcome. We provide competitive pricing for repeat buyers and bulk orders.
Shipping & International Delivery
Handling Time: Dispatches within 1 business day.
Carrier: Worldwide shipping via premium courier (DHL Express / FedEx Express).
Delivery Timeline: Estimated 3 to 8 business days worldwide.
Import Taxes & Duties: Customs clearance charges, destination duties, and taxes are the buyer’s responsibility and are not included in the item price.