Technical Parameters
Parameter Specification
Product Series MLBL Series (Modular Branch Wiring Duct)
Model Decoding MLBL-07G
• MLBL: Series name for branch/finger duct.
• 07: Likely indicates the internal dimensions (Height x Width). "07" often corresponds to a common size, e.g., 45mm x 60mm (H x W, internal). This is a key identifier for size.
• G: Configuration code. Often stands for "with 1 Partition" or "Gris" (French for Gray, indicating color/material type). Most commonly, "G" in this context denotes a partitioned version.
Type Snap-on / Hinged Lid Finger Duct
Material Polyamide 6.6 (PA66), Halogen-free, Flame Retardant (UL94 V-0).
Standard Color Light Gray (similar to RAL 7035).
Internal Dimensions (H x W) Approx. 45mm x 60mm (This is the most critical guess; "07" must be verified against catalog). This is the usable space inside the duct base.
External Dimensions (H x W) Slightly larger than internal dimensions, depending on wall thickness.
Internal Configuration Likely with 1 longitudinal vertical partition, dividing the internal space into 2 compartments of equal or specified unequal width.
Partition Material Integral with the duct base (same material).
Lid Type Flexible, snap-on "finger" lid.
Temperature Range -40°C to +120°C (for continuous use).
Flammability Rating UL 94 V-0 (Self-extinguishing).
Standards Compliance IEC 61439-1/-2 (Low-voltage switchgear assemblies), RoHS, REACH.
Mounting Via integral mounting feet for screwing to backplate, or adhesive backing.
Typical Fill Capacity Should not exceed 50-60% of internal cross-sectional area for proper heat dissipation and wire access.
Packaging Sold in standard lengths (e.g., 1-meter or 2-meter pieces).
The ABB MLBL-07G is a branch circuit wiring duct (also known as a finger duct, terminal duct, or wireway) from ABB's MLBL series. It is a critical panel-building component used for the organized, safe, and professional routing and management of control wires, signal cables, and small power conductors inside electrical enclosures, control panels, and switchgear.