Understanding IDEC’s E-stop ‘Safe Break Action’ Feature: Enhancing Safety in Industrial Environments

 

In the fast-paced world of industrial automation, safety is paramount. With machinery and processes becoming increasingly complex, ensuring the well-being of workers and the reliability of equipment is a top priority for businesses. This is where IDEC’s Safe Break Action technology comes into play, offering a robust solution to enhance safety in industrial environments. 

IDEC E-stop, Emergency Stop

What is an E-Stop? 

An emergency stop, or E-stop, is a safety mechanism designed to halt machinery or processes immediately in emergency situations. It’s a critical component of any industrial setup, allowing operators to swiftly intervene, turn off machinery fast, and prevent accidents or injuries. E-stops need to be easy to use, endure harsh factory conditions and deliver peace of mind.  

E-stops work by signalling a safety device, such as a safety relay, to cut the power to a machine or process.  Traditionally, the terminals within an E-stop are held in a closed position. This is referred to as a Normally Closed (NC) switch. On pressing the E-stop, the contacts disengage, stopping the flow of power and isolating the machine or circuit. Latches maintain the separation of the contacts until the operator resets the switch, typically through a pulling or twisting motion. However, one challenge with conventional E-stop systems is that they may not always provide fail-safe operation if the contact blocks within the switch are, for example, misaligned or incorrectly fitted. 

IDEC’s Solution: ‘Safe Break Action’ 

IDEC, a leading manufacturer of industrial automation and control solutions, addresses this challenge with its E-stop ‘Safe Break Action’ feature. This technology ensures fail-safe operation even in the rare event of contact block failure. 

IDEC’s E-stops are designed with a positive opening mechanism, also known as ‘Safe Break Action’. This means that the E-stop contacts have the spring pressure in the opposite direction meaning it will always fail in the safe position and cannot be defeated by welding or sticking contacts, thus ensuring reliable and consistent operation. 

These E-Stops are also available with 1 to 4NC contacts, depending on the series, and can include 1NO monitor contact to ensure no faults are missed. These additional contact options also mean that these E-stop switches can be used in Level 4 safety category applications. 

To conclude, IDEC’s E-stop ‘Safe Break Action’ feature represents a significant advancement in industrial safety technology. By combining fail-safe operation with ‘Safe Break Action’, IDEC provides a reliable and robust solution to enhance safety in industrial environments. As businesses strive to create safer workplaces and comply with regulatory standard, investing in advance safety technologies like IDEC’s E-stop switches in a proactive step towards achieving these goals.  

New IDEC E-stops boost machine safety

Safe-Break emergency stops that prioritise safety and minimize risks

We’ve recently introduced the latest range of IDEC X-Series Safe-Break emergency stop buttons.  Designed to offer the highest levels of machine and operator safety, the new E-stops use an innovative design that stops a machine the moment an operator hits the emergency stop button.  The IDEC E-stops will also immediately shut-off power if a contact block or actuator is damaged or incorrectly installed. 

With traditional E-stops normally closed (NC) contacts are held in place by spring pressure.  This effectively maintains them in a closed position until actuated, when the pressure is released.  There is therefore the risk that incorrect installation or excessive force in an emergency can break or dislodge a vital part, preventing the contacts opening; the subsequent results can potentially be catastrophic. 

By comparison, the patented Safe-Break technology deployed in the X-Series effectively reverses the direction of applied energy, with spring-pressure being used to ensure that the NC contacts will open if the emergency switch is damaged, or the contact blocks separate due to excessive force.  This is simple, effective and completely safe. 

X-Series E-stops also feature a combined push-to-lock and pull or turn to reset button.  Competing devices normally only offer one option or the other, meaning that OEMs have to hold more stock and specify alternative parts for different types of machines. 

The X-Series has UL approval.  Depending on the product version, this includes NISD and NISD2 approvals, plus certification for use in machine systems where Category 0 or Category 1 stop functions are required (as defined in ANSI/ NFPA79 Electrical Standard for Industrial Machinery). 

We have a wide range of IDEC E-stops in stock, with non-stock items generally being available on short lead-times.  All products are backed by our comprehensive technical and customer support service.