Safety Relays
Monitoring Safety Relays
Minotaur MSR126R/T
Specifications
Standards
EN954-1, ISO13849-1, IEC/
EN60204-1, IEC60947-4-1,
IEC60947-5-1, ANSI B11.19,
AS4024.1
Cat. 4 per EN954-1 (ISO 13849-1)
C-Tick, CE marked for all
applicable directives, cULus
(except 42V AC units) and BG
24V AC/DC, 42/115/230V AC
(0.8 – 1.1 x rated voltage), 50/60Hz
4W
1 N.C., 2 N.C. or Light Curtain
Infinite
90 ohms
Auto./Manual or Monitored Manual
2 N.O. Safety
AC-1: 6A/250V AC
DC-1: 6A/24V DC
B300, AC-15
6A/250V AC, 6A/125V AC
P300, DC-13
3A/24V DC
6A/24V DC @ 6 ops/min
Max 6A in one current path
6A slow blow or 10A quick blow
1 x 6A, 2 x 4A
10mA/10V
300ms
15ms
100ms
Green = Power on
Green = K1 Closed
Green = K2 Closed
2500V
-5°C to +55°C (+23° to +131°F)
90% RH
IP40 (NEMA 1), DIN 0470
IP20, DIN 0470
0.2-4mm
2
(24-12AWG)
C in accordance with VDE 0110
2
35mm DIN rail
160g (0.353 lbs)
215g (0.474 lbs)
100,000 operations
500,000 operations
300,000 operations
100,000 operations
1,000,000 operations
2,000,000 operations
2,000,000 operations
10g 10-55Hz
10g, 16ms 100 shocks
Category
Approvals
Power Supply
Power Consumption
Safety Inputs
Input Simultaneity
Max. Allowable Input Resistance
Description
The Allen-Bradley Guardmaster Minotaur MSR126R/T is a safety
monitoring relay that provides the very basics for safety control
systems in a 22.5mm 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 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.
Reset
Outputs
Output Utilization per IEC
60947-4-1 (Resistive)
➊
Output Utilization per IEC
60947-5-1 (Inductive)
Thermal Current (non switching)
Fuses Output (external)
Maximum Thermal Current, Ie
Min. Switched Current/Voltage
Power On Delay
Response Time
Recovery Time
Indication LEDs
Impulse Withstand Voltage
Operating Temperature
Humidity
Enclosure Protection
Terminal Protection
Conductor Size
Installation Group
Pollution Degree
Mounting
Weight 24V DC
110 and 230V AC
Electrical Life (w/Surge Supp.)
250V AC/6A/1500VA cosϕ=1
250V AC/2.5A/625VA cosϕ=1
250V AC/1.5A/375VA cosϕ=0.35
250V AC/5A/1250VA cosϕ=0.6
24V DC/2A/48W
10V DC/0.01A/0.1W
Mechanical Life
Vibration
Shock
Features
•
•
•
•
•
•
•
Category 4 per EN 954-1
Stop category 0
2 Safety contacts N.O.
Single/dual channel operation
Cross fault monitoring
Monitored or automatic reset
E-stop, safety gate or light curtain applications
➊
See Output Ratings on page 1-29 for details. Consult factory for ratings not
shown.
4-36
Safety Relays
Monitoring Safety Relays
Minotaur MSR126R/T
Product Selection
Safety Outputs
Auxiliary Outputs
Reset
Input
Light Curtain or
Single Channel
(MSR126T)
Automatic/Manual
Dual Channel
(MSR126.1T)
2 N.O.
None
Light Curtain or
Single Channel
(MSR126R)
Monitored Manual
Dual Channel
(MSR126.1R)
Power Supply
24V AC/DC
115V AC
230V AC
24V AC/DC
115V AC
230V AC
24V AC/DC
115V AC
230V AC
24V AC/DC
115V AC
230V AC
Catalogue Number
440R-N23117
440R-N23116
440R-N23115
440R-N23114
440R-N23113
440R-N23112
440R-N23123
440R-N23122
440R-N23121
440R-N23120
440R-N23119
440R-N23118
Dimensions—mm (inches) Block Diagram
22.5 (0.88)
75 (2.95)
13
A1
K1
K2
14 24
S21
14
S22
S11
A2
S12
23
S33
13 23
24
S34
110
(4.33)
Typical Wiring Diagrams
L1
OSSD1
A1 S11 S12
S33 13
23
A1 S11 S12
K1
Reset
L1 L2 L3
L1
Reset
E-Stop
S33 13
23
K1
L1 L2 L3
+
Light
24V DC Curtain
-
A2
MSR126R
S21 S22
S34 14
K1
24
K2
MSR126.1R
K2
K2
A2
OSSD2
N
M
N
S21 S22
S34 14
K1
24
K2
M
115/230V Supply, 24V DC Light Curtain,
Monitored Manual Reset, Monitored Output
L1
Dual Channel E-Stop Input,
Monitored Manual Reset, Monitored Output
L1
Safety Gate
L1 L2 L3
23
K1
Closed
A1 S11 S12 S33 13
E-Stop
A1 S11 S12
S33 13
23
K1
L1 L2 L3
MSR126T
K2
A2
S21 S22
S34 14
K1
N
N
24
K2
MSR126.1T
K2
A2
S21 S22
S34 14
K1
24
K2
M
M
Single Channel Safety Gate
Automatic Reset, No Output Monitoring
Dual Channel E-Stop,
Automatic Reset, No Output Monitoring
4-37