MSR126R/T
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Description
The Allen-Bradley Guardmaster Minotaur 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 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 momentary normally open switch to activate the outputs.
The MSR126T and MSR126.1T are designed for applications where automatic/manual reset is required.
The outputs are only two normally open safety-rated outputs. The safety outputs have independent and redundant internal contacts to support the safety function.
Features
- Category 4 per EN 954-1
- Stop category 0
- Two safety contacts N.O.
- Single/dual channel operation
- Cross fault monitoring
- Monitored or automatic reset
- E-stop, safety gate or light curtain applications
LED Indicators
| Green | Power On |
| Green | K1 Closed |
| Green | K2 Closed |
Specifications
| Safety Ratings | ||
| Standards | EN 954-1, ISO 13849-1, IEC/EN 60204-1, IEC 60947-4-1, IEC 60947-5-1, ANSI B11.19, AS 4024.1 | |
| Safety Classification | Cat. 4 per EN 954-1 (ISO 13849-1), SIL CL3 per EN IEC 62061, PLe per ISO 13849-1 | |
| Functional Safety Data ⋆ Note: For up-to-date information, visit http://www.ab.com/safety/ |
PFHD: < 1.45 x 10-9 MTTFd: > 398 years Suitable for performance levels Ple (according to ISO 13849-1:2006) and for use in SIL3 systems (according to IEC 62061) depending on the architecture and application characteristics |
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| Certifications | CE Marked for all applicable directives, cULus, c-Tick, and BG | |
| Power Supply | ||
| Input Power Entry | 24V AC/DC, 115/230V AC | |
| Power Consumption | 4 W | |
| Inputs | ||
| Safety Inputs | 1 N.C., 2 N.C., or LC | |
| Input Simultaneity | Infinite | |
| Input Resistance, Max. | 90 W | |
| Reset | Auto./Manual or Monitored Manual | |
| Power On Delay/ Recovery Time |
300 ms/100 ms | |
| Response Time | 15 ms | |
| Outputs | ||
| Safety Contacts | 2 N.O. | |
| Thermal CurrentIlth | Max 6 A in one current path (nonswitching) | |
| Rated Impulse withstand Voltage | 2500V | |
| Switching Current @ Voltage, Min. | 10 mA @ 10V | |
| Fuses, Output | External 6 A slow blow or 10 A fast acting | |
| Electrical Life (Operations) | (With surge suppression) 250V AC/6 A/1500VA cosf = 1…0.1 M 250V AC/2.5 A/625VA cosf = 1…0.5 M 250V AC/1.5 A/375VA cosf = 0.35…0.3 M 250V AC/5 A/1250VA cosf = 0.6…0.1 M 24V DC/2 A/48 W = 1 M 10V DC/0.01 A/0.1 W = 2 M |
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| Mechanical Life | 2,000,000 operations | |
| Utilization Category | UL: B300, 5 A/250V AC, 24V AC, 6 A/24V DC | |
| Resistive: AC-1 | 6 A/250V AC | |
| Resistive: DC-1 | 6 A/24V DC | |
| Inductive: AC-15 | 6 A/250V AC | 6 A/125V AC |
| Inductive: DC-13 | 3 A/24V DC | 6 A/24V DC @ 6 ops/min |
| Environmental and Physical Characteristics | ||
| Enclosure Type Rating/ Terminal Protection |
IP40 (NEMA 1), DIN 0470/ IP20, DIN 0470 |
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| Operating Temperature [C (F)] | -5…+55 ° (23…131 °) | |
| Vibration | 10…55 Hz, 0.35 mm | |
| Shock | 10 g, 16 ms 100 shocks | |
| Mounting | 35 mm DIN Rail | |
| Weight [g (lb)] | 24V DC: 160 (0.35); 115/230V AC: 215 (0.47) | |
| Conductor Size, Max. | 0.2…4 mm2 (24…12 AWG) | |
| ⋆ Usable for ISO 13849-1:2006 and IEC 62061. Data is based on the following assumptions: - Mission time/Proof test interval of 20 years - Functional test at least once within six-month period |
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Product Selection
| Inputs | Safety Outputs | Auxiliary Outputs | Terminals | Reset Type | Power Supply | Cat. No. |
| Light Curtain or Single Channel (MSR126T) | 2 N.O. | None | Fixed | Auto./Manual | 24V AC/DC | 440R-N23117 |
| 115V AC | 440R-N23116 | |||||
| 230V AC | 440R-N23115 | |||||
| Dual Channel 2 N.C. (MSR126.IT) | 24V AC/DC | 440R-N23114 | ||||
| 115V AC | 440R-N23113 | |||||
| 230V AC | 440R-N23112 | |||||
| Light Curtain or Single Channel (MSR126R) | Monitored Manual | 24V AC/DC | 440R-N23123 | |||
| 115V AC | 440R-N23122 | |||||
| 230V AC | 440R-N23121 | |||||
| Dual Channel 2 N.C. (MSR126.IR) | 24V AC/DC | 440R-N23120 | ||||
| 115V AC | 440R-N23119 | |||||
| 230V AC | 440R-N23118 | |||||
Approximate Dimensions
Dimensions are shown in mm (in.). Dimensions are not intended to be used for installation purposes.
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Block Diagram
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Typical Wiring Diagrams
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| 115/230V Supply, 24V DC Light Curtain, Monitored Manual Reset, Monitored Output |
Dual Channel E-Stop Input, Monitored Manual Reset, Monitored Output |
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| Single Channel Safety Gate, Automatic Reset, No Output Monitoring |
Dual Channel E-Stop, Automatic Reset, No Output Monitoring |
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