Auxiliary contacts for motor circuit-breakers
Auxiliary contacts add extra switching points to circuit breakers, allowing for fault detection, status signaling, and other additional functions such as integration with remote control devices. These accessories are commonly used in motor circuit breakers, which protect electric motors against overloads and short circuits.
Filters
Filtros
Industrial Protection & Control: Efficiency and Safety
Henvi’s industrial protection and control range has been designed to provide complete control over the electrical and mechanical systems within your infrastructure. As specialist distributors, we bring together in a single catalogue the essential components to ensure that your industrial operation is not only productive, but also resilient to failures and safe for all operators.
Control Components for Precise Automation
Industrial control is the brain of any electrical panel. At Henvi, we supply devices that enable direct interaction between people and machines, as well as the automatic control of loads:
- Power Contactors: For starting and stopping motors and large loads.
- Push Buttons and Signalling Devices: Control buttons, emergency stops and indicator lights for local control.
- Control Relays: For auxiliary logic and thermal protection of equipment.
Industrial Protection Against Electrical Faults
To protect your most valuable assets, Henvi selects protection devices that respond quickly to abnormal operating conditions:
Motor Protection: Motor circuit breakers and thermal overload relays that prevent damage caused by overloads or phase failure.
Technical Selectivity: Ensuring that only the affected area is isolated, keeping the rest of the installation operational.
Durability: Equipment designed to withstand intensive switching cycles in factory environments.
The Ideal Partner for Control and Protection Projects
At Henvi, we understand the challenges faced by maintenance technicians. That is why we offer more than electrical equipment: we provide technical specification support. Whether you need to size a starting system for a pump or configure a control console, our team ensures that you receive the right components, with the necessary European certifications and immediate stock availability.
Frequently Asked Questions About Protection & Control
What does industrial protection and control cover?
This area encompasses all devices that control the flow of energy (control, such as contactors and push buttons) and those that protect equipment and people against electrical faults (protection, such as motor circuit breakers and relays).
What is the importance of integrating protection and control in the same panel?
Integration allows the control system to monitor the status of the protection system. For example, if a motor overheats, the protection device can send a signal to the control system to stop operation and indicate the fault with a warning light, preventing further damage.
Are Henvi control devices compatible with automation systems?
Yes. Our contactors and control devices are compatible with industrial standards, allowing integration with PLCs (programmable logic controllers) and other centralised technical management systems through universal coils and auxiliary contacts.
Inductive Sensors for Industrial Metal Detection
The inductive sensors supplied by Henvi are the ideal solution for detecting metal objects without physical contact. Essential for factory automation, these devices provide accurate position monitoring, part counting and speed control, operating with high reliability even in industrial environments with dust, oils or vibrations.
Contactless Detection Technology and High Precision
Our catalogue includes sensors designed for maximum durability. As they have no moving parts that come into contact with the detected object, mechanical wear is virtually eliminated, resulting in an extremely long service life.
- Various Formats: Cylindrical sensors (M8, M12, M18, M30) and rectangular formats for specific mounting requirements.
- Digital Outputs: Models with PNP or NPN outputs and NO (Normally Open) or NC (Normally Closed) configurations.
- Sensing Distances: Different detection ranges to meet the precision requirements of your machine.
Resistance and Performance in Harsh Environments
The inductive sensors we supply are selected for their robustness. With high protection ratings (IP67 or higher), these devices are resistant to:
Humid Environments: Protection against cutting fluids and industrial cleaning processes.
Electromagnetic Interference: Stable signal performance even near motors and drives.
Impacts and Vibrations: Solid construction for installation on demanding production lines.
Why Buy Inductive Sensors from Henvi?
As a reliable partner, Henvi understands that a damaged sensor can cause costly production line downtime. That is why we maintain stock focused on the most common models on the market, facilitating rapid replacement. Our technical team is available to help you identify an equivalent sensor or the best solution for a new installation, ensuring electrical and mechanical compatibility.
Frequently Asked Questions About Inductive Sensors
What does an inductive sensor detect?
An inductive sensor detects metal objects, both ferrous and non-ferrous. It uses an electromagnetic field to detect the presence of metal without physical contact, making it ideal for industrial automation and counting applications.
What is the difference between a PNP and an NPN sensor?
The difference lies in how the sensor switches the load:
- PNP: Connects the load to the positive supply (common in European systems).
- NPN: Connects the load to the negative supply (common in machines originating from Asia).
It is essential to check the type of input on your PLC before selecting the sensor.
What is the difference between flush and non-flush inductive sensors?
A flush (shielded) sensor can be mounted level with the surrounding metal without being affected by lateral interference. A non-flush (unshielded) sensor requires clearance around its sensing face but generally offers a greater sensing distance.
