Single-Function Safety Relays

Guardmaster® DI Dual Input Safety Relays consolidate the functionality of two safety relays into one dual input relay for  the connection of two dual channel input devices. The single-wire safety connection simplifies cascading and expands safety functions by linking relays with a single-wire. Universal inputs provide compatibility with a broad range of safety devices. Designed to meet the new Functional Safety standards, these relays simplify purchasing and parts management, and offer key functions to simplify installation and reduce system complexity.

Guardmaster® DIS Dual Input Solid-state Safety Relays have solid-state outputs and consolidate the functionality of two safety relays into one dual input relay. Two dual channel input devices can connect to one safety relay. The single-wire safety connection simplifies cascading and expands safety functions by linking relays with a single wire. Universal inputs provide compatibility with a broad range of safety devices. Designed to meet the new Functional Safety standards, our relays simplify purchasing and parts management, and offer key functions to simplify installation and reduce system complexity.

Guardmaster® SI Single Input Safety Relays are for simple safety applications using one dual or single channel safety device. The single-wire safety connection simplifies cascading and expands safety functions by linking relays with a single-wire. Its universal input provides compatibility with a broad range of safety devices. Designed to meet the new Functional Safety standards, our relays simplify purchasing and parts management, and offer key functions to simplify installation and reduce system complexity.

Guardmaster® CI Single Input Safety Relays are for simple safety applications using one dual or single channel safety device. These relays have the same functionality as the Guardmaster SI Safety Relays, however the terminals are arranged in a similar layout to the Guardmaster MSR safety relays. Designed to meet the new Functional Safety standards, this relay simplifies purchasing and parts management, and offers key functions to simplify installation and reduce system complexity.

The Guardmaster® MSR5T has a single-channel input for use with gate interlocks and emergency stop buttons in lower risk applications. This relay also has safety outputs and an auxiliary output. The safety outputs have independent and redundant internal contacts. The auxiliary contact is a nonsafety output that provides an external signal about the status of the safety outputs. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR6R/T has an internal switch to select the single-channel input for use with gate interlock and emergency stop buttons in lower risk applications or the dual channel inputs for higher risk applications. This relay has safety outputs and an auxiliary output. The safety outputs have independent and redundant internal contacts. The auxiliary contact is a nonsafety output that provides an external signal about the status of the safety outputs. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR9T has dual-channel inputs for use with gate interlocks and emergency stop buttons in higher risk applications. The MSR9T is typically used for gate interlocks incorporating the diversity of one positive opening and one non-positive opening interlock. This relay also has safety outputs and an auxiliary output. The safety outputs have independent and redundant internal contacts. The auxiliary contact is a nonsafety output that provides an external signal about the status of the safety outputs. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR18T is a monitoring safety relay unit with a dual-channel input for use with emergency stop operations, safety gate applications and two-hand control applications. This relay also has safety auxiliary outputs. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR30RT/RTP is a microprocessor-based monitoring safety relay with safety-rated, solid-state outputs. This relay connects to gate interlocks, emergency-stop devices and four-wire safety mats. The gate interlocks and emergency-stops can be either single-channel or dual-channel normally-closed circuits. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR33RT/RTP is a microprocessor-based, monitoring safety relay, with safety-rated, solid-state outputs. This relay operates with dual-channel inputs where one channel is normally closed and the other is normally open. The Sipha sensors can be connected to this relay's inputs. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR41 Micro 400 Controller safety relay is a simple on/off control module for the GuardShield™ Micro 400 safety light curtain. This relay has a pair of PNP solid-state, 400 mA OSSDs for direct connection to the final switching device. The MSR41 easily accommodates the interconnection of up to three MSR45E safety relay expansion modules, each providing a pair of safety relay outputs. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR117T has a single-channel input for use with gate interlocks and emergency-stop buttons in lower risk applications. This relay has output monitoring that can accommodate an automatic/manual reset function. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR121RT is a safety monitoring relay that provides safety contacts, an auxiliary contact and a solid-state auxiliary output for interfacing to PLCs. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster®  MSR123RT is a safety monitoring relay that provides safety contacts and a solid-state auxiliary output for use with interfacing to PLCs. This relay connects to either a single- or dual-channel safety gate or emergency-stop, or to a light curtain that provides cross-fault detection. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR124RT is a safety monitoring relay that provides versatile inputs and monitoring capability with a large number of safety outputs in a 100 mm package. This  relay connects as either a single- or dual-channel safety gate or emergency-stop, or to a light curtain that provides cross-fault detection. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR126R/T is a safety monitoring relay that provides the very basics for safety control systems in a 22.5 mm package. The MSR126R/T connects to a single-channel safety gate, a single-channel emergency-stop or a light curtain that provides cross-fault detection. The MSR126.1R/T connects to a dual-channel safety gate or emergency-stop. The MSR126R and MSR126.1R provide a monitored manual reset. The MSR126T and MSR126.1T provide automatic or manual resets. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR127RTP can be connected in three different input wiring configurations: one normally closed, two normally closed, or with two PNP connections from a light curtain. When connected in the two normally closed fashion, the MSR127RTP checks for cross faults across the two inputs. When connected to light curtains, the light curtain must perform the cross-fault detection. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR131RTP can be connected in four different input wiring configurations: one normally closed, two normally closed, two PNP connections from a light curtain, or a four-wire safety mat. When connected in the two normally closed fashion, the MSR131RTP checks for cross faults across the two inputs. When connected to light curtains, the light curtain must perform the cross-fault detection. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR142RTP can be connected in four different input wiring configurations: one normally closed, two normally closed, two PNP connections from a light curtain, or a four-wire safety mat. When connected in the two normally closed fashion, the MSR142RTP checks for cross faults across the two inputs. When connected to light curtains, the light curtain must perform the cross-fault detection. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

The Guardmaster® MSR144RTP can be connected in four different input wiring configurations: one normally closed, two normally closed, two PNP connections from a light curtain, or a four-wire safety mat. When connected in the two normally closed fashion, the MSR144RTP checks for cross faults across the two inputs. When connected to light curtains, the light curtain must perform the cross-fault detection. Note that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.