Safety Relays
Two Hand Relays
Minotaur MSR125H/HP
Specifications
Standards
EN 574, EN 954-1, ISO 13849-1,
IEC/EN 60204-1, IEC 60947-4-1,
IEC 60947-5-1, ANSI B11.19,
AS4024.1
Cat. 4 per EN 954-1 (ISO 13849-1)
Cat. IIIC per EN 574
C-Tick, CE marked for all
applicable directives, cULus & BG
24V DC, 115V AC or 230V AC
2W
1 N.C. and 1 N.O.
<0.5s
40 ohms
Automatic
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
1x6A, 2 x 4A
6A slow blow or 10A quick blow
10mA/10V
1s
20ms
500ms
Green = Power on
Green = CH1 Output Active
Green = CH2 Output Active
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
0.4-0.5N·m (3.54-4.43lb•in)
Polyamide PA 6.6
35mm DIN rail
210g (0.463 lbs)
260g (0.573 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
0-55Hz 0.35mm
10g, 16ms, 100 shocks
Category
Approvals
Power Supply
Power Consumption
Safety Inputs
Input Simultaneity
Maximum Input Resistance
Reset
Outputs
Output Utilization per IEC
60947-4-1 (Resistive)
➊
Output Utilization per IEC
60947-5-1 (Inductive)
Description
The Allen-Bradley Guardmaster Minotaur MSR125H/HP is a logic
unit for monitoring and interfacing two hand control devices with a
safety related circuit. The MSR125H/HP is for use with mechanical
switches and the Allen-Bradley Bulletin 800Z Zero-Force Touch
Buttons.
The MSR125H/HP has 2 N.O. safety outputs. The safety outputs
have independent and redundant internal contacts to help ensure the
safety function.
The MSR125H/HP requires the two switches to be operated within
0.5 seconds of each other and will only authorize the ON state while
both switches are held down. If one of the switches is released, the
output goes to the OFF state and the machine cannot be restarted
until both buttons are released and then operated simultaneously.
The MSR125H/HP conforms to EN574 Category IIIC, which gives
specific requirements for two hand control units and logic devices.
The MSR125H has fixed terminals and the MSR125HP has
removable terminals.
Thermal Current (non switching)
Fuses Output (external)
Min. Switched Current/Voltage
Power On Delay
Response
Recovery Time
Indication LEDs
Impulse Withstand Voltage
Operating Temperature
Humidity
Enclosure Protection
Terminal Protection
Conductor Size
Installation Group
Pollution Degree
Torque Settings—term. screws
Case Material
Mounting
Weight 24V DC
115 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
Safety category IIIc per EN 574
Two-hand control unit
2 N.O. safety outputs
Removable terminals
22.5mm wide housing
➊
See Output Ratings on page 1-29 for details. Consult factory for ratings not
shown.
4-54
Safety Relays
Two Hand Relays
Minotaur MSR125H/HP
Product Selection
Inputs
Input Buttons
Safety Outputs
Terminals
Removable
MSR125HP
1 N. C.
1 N. O.
Mechanical
or Bulletin 800Z
2 N. O.
Fixed MSR125H
Power Supply
24V DC
115V AC
230V AC
24V DC
115V AC
230V AC
Catalogue Number
440R-D23171
440R-D23169
440R-D23168
440R-D23166
440R-D23164
440R-D23163
Dimensions—mm (inches) Block Diagram
99 (3.89)
22.5 (0.88)
A1(+) S11
S12
S13
Y1
Y2
13
13
23
23
A1 S11 S12 S13 Y1 Y2
+
–
–
+
A2
A2(-)
114.5
(4.5)
S21
S21 S22 S23
S22
S23
14
14
24
24
Typical Wiring Diagrams
L1
S1
L1
S1
A1
L1 L2 L3
S11
S12
S13
Y1
13
23
K1
K2
L1 L2 L3
A1
S11
S12
S13
Y1
13
23
K1
MSR125H/HP
MSR125H/HP
S21
S2
K1
N
S22
S23
14
24
A2
S21
S2
S22
S23
Y2
14
24
A2
Y2
M
K1
K2
M
N
Two-Hand Control, Dual Channel,
Auto Reset, Output Monitoring
Two-Hand Control, Dual Channel,
Auto Reset, Output Monitoring
4-55
NXP MCU
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