Allen Bradley 440R / MSR131RTP Safety Relay, 24V ac/dc, Dual-Channel, 3 Safety Contacts

Enhance your safety control system and establish dependable monitoring and fault detection with the Minotaur MSR131RTP Safety Relay(s) by Rockwell Automation.

This versatile safety relay can be connected in four different input wiring configurations to suit your application requirements: one normally closed, 2 normally closed, 2 PNP connections from a light curtain, or a four-wire safety mat. The MSR131RTP relay checks for cross faults across the two inputs when connected in the 2NC fashion. The light curtain must perform the cross fault detection when the safety relay is connected to light curtains. It can accommodate either automatic/manual reset or a monitored manual reset. This unit features three normally open safety rated outputs, two normally closed auxiliary outputs, and two solid-state outputs.

The Minotaur Safety Relay is the ideal solution for relatively small safety applications and helps protect personnel and machinery, minimising downtime and ensuring greater efficiency.

• Monitored or automatic reset
• Stop category 0
• Removable terminals
• Reliable cross fault monitoring
• Compatible with light curtains, safety mats, and E-stop inputs
• Safety outputs have independent and redundant internal contacts to help ensure the safety function
• Non-safety auxiliary output provides an external signal to indicate the status of the safety outputs
• Cat. 4 per EN954-1

The 440R-C23139 unit is dual channel and has a 24 V dc power supply and removable (screw) terminals. It has 3NO immediate safety outputs, and 2 NC, 2 PNP Solid State immediate auxiliary outputs. The rated impulse withstand voltage is 2500V. The enclosure is IP40 (NEMA 1) rated and the terminals are protected to IP20. It has an operating temperature of -5°C to +55 °C (23…131 °F). Reset is configured Automatic/Manual or Manual Monitored Reset. This type of relay is the most economical solution for smaller machines.

Inputs: 1 N.C., 2 N.C., Light Curtain, Safety Mat

Safety relays are monitoring devices which are used to continuously check for errors or faults in a machine safety system, and can implement safety commands when they detect these errors to bring the risk down to an acceptable level. By doing this, they defend against hazards which could cause injury to personnel and damage to machinery. Single function relays manage one specific function, while multi-function relays can oversee different activities. Safety relays can also be connected to each other. They are often used in industrial environments such as factories, as part of a safety control circuit for dangerous machines. Typical applications include: safety mats, emergency stop push-buttons, light curtains, and magnetic switches. Rockwell Automation offer high-quality, reliable safety relays which give exceptional performance and ensure maximum protection and productivity.