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Minicontactors B6-B7
Minicontactors B6-B7 are compact electromechanical switching devices designed for controlling resistive and inductive loads in industrial and commercial automation systems. These components, often referred to as miniature contactors or IEC contactors, feature a modular design with ratings typically ranging from 9A to 20A AC-3 utilization categor...
Minicontactors B6-B7 are compact electromechanical switching devices designed for controlling resistive and inductive loads in industrial and commercial automation systems. These components, often referred to as miniature contactors or IEC contactors, feature a modular design with ratings typically ranging from 9A to 20A AC-3 utilization category, supporting coil voltages from 24VAC/DC to 240VAC. They are characterized by their narrow width (often 45mm or less), allowing high-density mounting in control panels. Key technical parameters include mechanical endurance exceeding 10 million operations, electrical life up to 1 million cycles at rated current, and integrated surge suppression options. The B6-B7 series commonly offers 3-pole or 4-pole configurations with optional auxiliary contact blocks for expanded functionality.
These minicontactors are primarily deployed in motor control centers (MCCs), HVAC systems, lighting control panels, and small machine control cabinets. They excel in applications requiring frequent switching of single-phase or three-phase motors up to 5.5kW (7.5HP), resistive heating loads, and capacitor banks for power factor correction. Typical environments include industrial manufacturing floors, commercial building automation, water treatment facilities, and agricultural equipment. Their compact footprint makes them ideal for retrofitting existing panels where space is constrained, while their compliance with IEC 60947-4-1 ensures global acceptance in distribution boards and automation racks.
The B6-B7 category encompasses several subcategories including standard power contactors (e.g., B6-30-10, B7-40-00), reversing contactors with mechanical interlocks, and DC-operated variants for battery-backed systems. Key article codes follow the pattern B[6/7]-[number of main poles]-[auxiliary contacts], such as B6-30-10 (3 normally open main poles, 1 normally open auxiliary) or B7-40-00 (4 main poles, no auxiliaries). Accessories like snap-on auxiliary contact blocks (e.g., CA4-01, CA4-10), coil surge suppressors (RC units or varistors), and DIN rail mounting adapters are integral to the range. The series also includes thermal overload relays (e.g., RT6-1.6-2.5A) for direct motor protection integration.
Partnering with Electric Automation Network ensures access to genuine B6-B7 minicontactors with real-time pricing and up to 65% discount off list prices. Our engineering team provides personalized technical support for coil selection, auxiliary configuration, and coordination with upstream protection devices. Every order includes detailed technical datasheets and CAD drawings. With express shipping from our global warehouses, we deliver to over 180 countries within 24-72 hours. Whether you need a single unit for prototype testing or bulk quantities for production runs, our supply chain guarantees stock availability and competitive lead times.
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