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Altech 1BU05L

CIR BRK THRM-MAG 277VAC LEVER

Answer first: this page is a purchasing reference for the exact part number 1BU05L from Altech. Use it to start datasheet, package, manufacturer and RFQ verification; do not treat page text as a live stock, price or lead-time promise.

Manufacturer: Altech Category: Circuit Breakers Part number: 1BU05L Package: RFQ verification required

Key Parameters

Part Number1BU05L
ManufacturerAltech
CategoryCircuit Breakers
seriesL
packagingBulk
product statusActive
param 1DIN Rail
param 2Thermal Magnetic
param 3500mA
param 4277 V
param 5-
param 6Lever
param 71
param 8-
param 9-
param 10UL489

Parameters are provided for purchasing review. Confirm package, suffix, lifecycle status, datasheet revision and approved substitutes before ordering.

How to Verify 1BU05L Before Ordering

Datasheet and parameter checks

  • Confirm the full manufacturer part number, not only a shortened search keyword.
  • Compare package, pinout, dimensions, voltage or rating fields, temperature range and compliance wording against the released BOM.
  • Use the manufacturer datasheet or drawing for electrical and mechanical limits before approving a substitute.

RFQ fields SENICO needs

  • Send exact part number, manufacturer, quantity, target delivery date, destination and required packaging.
  • State whether alternates are allowed, and list any date-code, certificate, traceability or customer AVL requirement.
  • Keep exact stock, factory lead time and proposed alternatives in separate quote lanes.

For 1BU05L, SENICO recommends checking manufacturer marking, package, date code, requested quantity, approved vendor requirements and replacement risk before issuing a purchase order. If a supplier suggests an equivalent, record the changed fields and approval owner before comparing price.

We do not treat displayed data as a real-time stock or price commitment. The RFQ reply is the verified commercial reference.

Related buying guides: stock and lead-time verification, equivalent IC comparison, and BOM RFQ preparation.