Prosafe Trapped Key Interlock Switches
Stopped Motion Units
Specifications
Standards
EN292-1&2, EN1954-1, IEC/EN60204-1,
EN1088, IEC/EN60947-5-1, ISO13849-
1, ISO12100-1&2, ISO14119, GS-ET-19,
AS4024.1
Cat. 3 per EN 954-1 (ISO 13849-1)
BG and CE marked for all applicable
directives
0°C to +40°C (32°F to +104°F)
95% RH
100,000
15.1kN (3398lbs)
14Nm (124lb•in)
316L Stainless Steel
316L Stainless Steel
ABS Plastic
Stainless Steel Barrel, Plastic Face
Tamper resistant screws
2.0kg (4.4lbs)
24V DC, 110V AC and 230V AC
0.1 second to 40 minutes
2x inductive sensors
Category
Approvals
Operating Temperature
Humidity
Mechanical Operations
Maximum Shear Force to
Key
Maximum Torque to Key
Material
Trapped Key Components
Face Plate
Optional Box
Inductive Sensors
Assembly Fixing
Weight
Inputs
Time Range
Zero Speed Sensors
Description
The Stopped Motion Unit (SMU) is used in applications that require
the detection of stopped motion of mechanical parts of a machine.
The SMU uses inductive proximity sensors to detect motion and the
CU2 control unit to monitor the sensors.
The CU2 requires a PNP and an NPN output type proximity
sensors. When the proximity sensors stop detecting movement, the
CU2 activates its output, powering an internal solenoid. With the
solenoid energized, one or two trapped keys can be removed from
the SMU.
The removable trapped keys (one or two) can be used to continue
the next sequence in allowing access to the hazardous area.
See the CU2 control unit for details on setting the delay time.
Additional proximity sensors can be found in the
Sensors
catalogue.
Features
•
•
•
•
•
•
Stopped motion detection
NPN and PNP proximity sensors
Timed-delay output up to 40 minutes
Category 1 Stop
Replaceable code barrel assembly
Optional IP65 enclosure
The Prosafe Advantage
Stainless steel
construction.
5-16
Prosafe Trapped Key Interlock Switches
Stopped Motion Units
Product Selection (sensors not included)
Type
Solenoid Voltage
24V DC
Single Key Out
Panel Mounted
110V AC
230V AC
24V DC
Dual Key Out
Panel Mounted
110V AC
230V AC
Contact Set 1
3 N.O. 40A
2 N.O. 20A
3 N.O. 40A
2 N.O. 20A
3 N.O. 40A
2 N.O. 20A
3 N.O. 40A
2 N.O. 20A
3 N.O. 40A
2 N.O. 20A
3 N.O. 40A
2 N.O. 20A
Contact Set 2
1 N.O. 20A
1 N.C. 20A
1 N.O. 20A
1 N.C. 20A
1 N.O. 20A
1 N.C. 20A
1 N.O. 20A
1 N.C. 20A
1 N.O. 20A
1 N.C. 20A
I N.O. 20A
1 N.C. 20A
Catalogue Number
440T
-MSMSE10➊
440T
-MSMSE11➊
440T
-MSMSE20➊
440T
-MSMSE22➊
440T
-MSMSE30➊
440T
-MSMSE33➊
440T
-MDMSE10➊➊
440T
-MDMSE11➊➊
440T
-MDMSE20➊➊
440T
-MDMSE22➊➊
440T
-MDMSE30➊➊
440T
-MDMSE33➊➊
➊
Substitute the desired primary code for this symbol (key not included). See page 5-6 for code selection.
Accessories
Description
Replacement Key
Replacement Code Barrel
Replacement Dust Cap
Replacement Fuse
Optional IP65 Plastic
Enclosure
12mm
Inductive Proximity
Sensors
18mm
30mm
Size
Type
—
—
250V 500mA
—
NPN
PNP
NPN
PNP
NPN
PNP
Page Number
5-33
NA
For use with 20A units
For use with 40A units
Catalogue Number
440T
-AKEYE10⊗
440T
-ASCBE14➊
440T
-ASFC10⊗
440R-A31562
440T
-AIPB20
440T
-AIPB23
872C-D3NN12-E2
872C-D3NP12-E2
872C-D5NN18-E2
872C-D5NP18-E2
872C-D10NN30-E2
872C-D10NP30-E2
4-67
➊
Substitute the desired primary code for this symbol (key not included). See page 5-6 for code selection.
⊗
Substitute the desired code for this symbol. See page 5-6 for code selection.
Approximate Dimensions—mm (inches)
250 (9.84)
160 (6.30)
150 (5.91)
70 (2.76) 70 (2.76)
226 (8.90)
216 (8.50)
118 (4.65)
Optional ABS Box
(440T-AIPB20) for
20 Amp Isolator
One Key for STU
(key not included)
Nonremovable Key
Two Keys for DTU
(keys not included)
98 (3.86)
300 (11.81)
8 Holes 4.6
(0.18) Dia.
95 (3.74)
110 (4.33)
90 (3.54)
230 (9.06)
Optional ABS Box
(440T-AIPB23) for
40 Amp Isolator
5-17
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