AllPoints 40.03.688 3.75 Inch Contactor B and J K3 10A Industrial Electrical Switch

The Rational Cooking Systems 40.03.688 Contactor B&j K3 10a01 is a high-precision solid-state relay designed for industrial foodservice applications, particularly in commercial kitchens requiring reliable electrical switching. Manufactured by Rational Cooking Systems, this contactor operates with a model number 40.03.688 and employs robust B&j K3 technology, providing a 10A switching capacity. Engineered for integration within sophisticated cooking or heating equipment, it ensures seamless control and durability in demanding environments. Its technical design focuses on precise electrical interfacing for high-performance operational stability, supporting efficient workflow management in food production settings.

Top Rational Cooking Systems 40.03.688 Features

The 40.03.688 Contactor is tailored for commercial foodservice environments, offering reliable switching functions, compact dimensions, and long-lasting construction. Its relay design ensures efficient load control with minimal maintenance, suitable for integration into complex cooking systems. The contactor’s durable internal components, combined with straightforward installation, expand workflow capacity, making it ideal for equipment requiring precise electrical activation or deactivation in high-volume kitchens.

• High switching capacity: Supports up to 10A for robust performance
• Durable construction: Built with premium materials for extended lifespan
• Ease of maintenance: Designed for quick troubleshooting and replacement
• Compact design: Fits seamlessly into tight installation spaces
• Reliable performance: Ensures consistent operation in continuous workflows

Suitable for industrial control panels, kitchen equipment automation, and high-volume food processing lines.

Rational Cooking Systems 40.03.688 Technical Specs

The 40.03.688 Contactor operates with a 10A switching capacity at a standard voltage (derived from typical industrial specifications) with a frequency suitable for 50/60Hz environments. Its construction features high-grade materials designed for long-term durability under continuous operation. The relay is air-cooled, optimizing energy efficiency and thermal management. Compact with dimensions of approximately 3.75" width, 4.2" depth, and 2.15" height, it weighs merely 0.56 lbs, enabling easy integration into existing electrical assemblies. The device is engineered with corrosion-resistant contacts and a sturdy casing, suitable for installation in 24/7 food processing stations or automatic cookers. Additionally, it supports maintenance routines with accessible mounting points, ensuring operational longevity without extensive downtime.

• Electrical requirements: Compatible with 10A, suitable for 50/60Hz power supplies
• Cooling method: Air-cooled for consistent thermal regulation
• Construction & finish: High-grade, corrosion-resistant materials with finish suitable for industrial environments
• Dimensions: 3.75" W x 4.2" D x 2.15" H
• Weight: 0.56 lbs for ease of installation and replacement
• Performance features: Self-cleaning contacts and reliable switching performance

• Electrical compatibility: Requires suitable power supply connections and circuit protection
• Mounting: Designed for panel or DIN rail installation with secure mounting options
• Maintenance: Easy disassembly for inspection and replacement of internal contacts
• Ventilation: Installed in ventilated enclosures to maintain optimal operating temperature
• Integration: Compatible with automated control systems in commercial kitchens

What is a commercial Contactor?

A commercial contactor is an electrically operated switching device used to control high-power circuits in industrial kitchen equipment and food processing systems. The Rational Cooking Systems 40.03.688 Contactor B&j K3 10a01 functions as a durable, high-performance component capable of reliable load switching in demanding environments. Its compact design, supporting 10A operations, makes it suitable for installation within automation control panels, ovens, and cooking stations, ensuring seamless operation for medium-volume commercial kitchens and foodservice facilities that require controlled electrical activation for efficient workflow management and equipment reliability.

Top Commercial Electrical Switches for Medium-Volume Foodservice Settings

Reliable operation in industrial kitchen environments is achieved with the rational 40.03.688 Contactor by AllPoints. Designed to meet demands of moderate throughput kitchens, it ensures precise load control and long-term durability for food processing and cooking automation. Ideal for installation in commercial cooking equipment, this contactor supports efficient operations with its robust metal contacts and compact footprint.

• Operation Type — Medium-volume commercial kitchen automation
• Kitchen Setting — Compact foodservice establishments
• Foodservice Category — Cooking and heating equipment control
• Workload Qualifier — Moderate throughput operation
• Use Case — Electronic control of commercial kitchen appliances

Why Choose AllPoints 40.03.688 Contactors?

Designed for dependable, high-performance operation, the Rational Cooking Systems 40.03.688 model distinguishes itself through superior durability, compact design, and seamless integration with industrial control systems. Its robust construction supports continuous use in demanding foodservice environments, while precise switching helps optimize workflow efficiency, sanitation, and product consistency compared to standard relays or smaller models.

• Self-contained design: Compact footprint ideal for restricted installations
• Heavy-duty materials: Built with corrosion-resistant, wear-resistant components
• Robust performance: Supports continuous operation in demanding kitchens
• Long-lasting durability: Engineered for extended service life with minimal maintenance
• Enhanced control: Facilitates precise automation in diverse commercial kitchen setups