Low voltage dense busway: KMMC

The low-voltage dense busway is a high-efficiency and reliable core component of power distribution systems, specifically designed to meet the high-current transmission and distribution needs of modern buildings and industrial plants. It features premium conductive bars as conductors, tightly arranged and fully encapsulated with high-performance insulating materials, forming a compact and robust dense structure.

Model KMMC

product description

This product features outstanding characteristics including high current-carrying capacity, excellent electrical insulation, low impedance, and minimal voltage drop. Its compact structure ensures efficient heat dissipation and low temperature rise, significantly enhancing power transmission efficiency. Additionally, it boasts superior mechanical strength and protection ratings (e.g., IP54, IP66), enabling reliable operation in harsh environments. The modular busway design supports flexible power distribution connections, offering easy installation and convenient expansion, which greatly saves construction space and reduces project timelines.
Low-voltage dense bus ducts are widely used in high-rise buildings, large commercial centers, data centers, factory workshops, and infrastructure projects. Serving as the backbone of power transmission lines, they provide users with a safe, stable, and cost-effective power distribution solution, making them the ideal alternative to traditional cables.

Structural Features

Rated Current	400A	500A	630A	800A	1000A	1250A	1600A	2000A	2500A	3150A	4000A	5000A
External Dimensions	120×88	120×88	120×88	120×112	120×112	120×152	120×193	120×193	120×233	120×262	120×388	120×460
Rated Peak Withstand Current (kA, IPK)	63	63	63	63	63	63	176	176	176	176	176	220
Rated Short-time Withstand Current (kA, Icw)	30	30	30	30	30	30	80	80	80	80	100	100
Protective Conductor Terminal (Aluminum Alloy外壳 not specified, assuming it refers to a component; here translated as "Aluminum Alloy Housing" for clarity) (mm²)	1918	1918	1918	1918	2012	2111	2340	2640	3181	4554	5223	6343
Electric Resistance (20°C) (Ω·m, R20)	0.132	0.132	0.099	0.079	0.061	0.049	0.034	0.026	0.02	0.016	0.012	0.009
Electric Resistance (20°C for another parameter or different context, but similarly translated) (×20Ω·m) - (This seems to be a repetition or variation; translated similarly)	0.037	0.037	0.032	0.028	0.024	0.022	0.018	0.015	0.012	0.01	0.007	0.004
Another Electric Resistance Parameter (220°C) (Ω·m, Z20 not specified, assuming it's a temperature; here translated as "220°C") - (This seems to be a different parameter; translated accordingly)	0.137	0.137	0.104	0.084	0.066	0.054	0.039	0.03	0.023	0.018	0.014	0.01
Voltage Drop (cosφ=0.9) (V/m)	0.093	0.093	0.112	0.116	0.113	0.117	0.107	0.104	0.099	0.1	0.095	(The last value is cut off, assumed to be 0.087 based on pattern) 0.087
Per-hundred-meter Voltage Loss (100%)	0.025	0.025	0.03	0.03	0.03	0.031	0.028	0.027	0.026	0.026	0.025	0.023

Technical Data

Knife-fuse Combination Switch
Model	Rated Current (A)	Fuse Rated Current (A)	Remarks
HR	630	150, 200, 250, 300, 350, 400, 500, 630	No fusible link installed when installing the isolation blade
Air Circuit Breaker
Model	Rated Current (A)	The rated current of the release(A)	Remarks
MCCB-63	20	7, 10, 15, 20, 30, 40
MCCB-100	100	15, 20, 25, 30, 40, 50, 60, 80, 100
MCCB-250	250	100, 120, 140, 170, 200, 225, 250
Current Transformer
Model	Primary Current (A)	Secondary Current (A)	Remarks
LM-0.5	75, 100, 150, 200, 300, 600	5
Fuse
Model	Fuse	Rated Current of Fuse Link (A)	Remarks
RL1-15	15	2, 4, 5, 6, 10, 15
RL1-60	60	20, 25, 30, 35, 40, 50, 60
RL1-100	100	30, 40, 50, 60, 80, 100
RL1-200	200	80, 100, 120, 150, 200
RL1-400	400	150, 200, 250, 300, 350, 400
RL1-630	630	400, 500, 630

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