MSR126R/T

Overview

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.

The MSR126R/T is designed for connection to a single channel safety gate, a single channel e-stop or a light curtain that provides cross fault detection. The MSR126.1R/T is designed for connection to a dual channel safety gate or e-stop, as it performs cross fault detection across the inputs.

The MSR126R and MSR126.1R are designed for applications where a monitored manual reset is required. Monitored manual reset requires the use of a manually operated normally open momentary switch to activate the outputs.

The MSR126T and MSR126.1T are designed for applications where automatic/manual reset is required. Automatic/manual reset allows a jumper across the S33-S34 circuit, and therefore does not perform output monitoring.

The outputs are only 2 normally open safety rated outputs. The safety outputs have independent and redundant internal contacts to help ensure the safety function.

Note: that Guardmaster Safety Relays have been marketed by Rockwell Automation under the trade name "Minotaur" in the past.

Specs

1. Category 4 per EN 954-1
2. Stop category 0
3. Two N.O. safety contacts
4. Single/dual channel operation
5. Cross-fault monitoring
6. Monitored or automatic reset