Position Interlock Switches
Safety Limit Switches
Large Metal Senator
Specifications
Standards
EN954-1, ISO13849-1, IEC/EN60204-1,
NFPA79, EN1088, ISO14119, IEC/
EN60947-5-1, ANSI B11.19, AS4024.1
Cat. 1 Device per EN954-1
Dual channel interlocks suitable for Cat.
3 or 4 systems
Category
Approvals
cULus, TUV and CE marked for all
applicable directives
Safety Contacts
Auxiliary Contacts
1 N.C. snap acting, 2 N.C., 3 N.C. or 4
N.C. slow acting
1 N.O. (with 2 N.C.)
Designation/Utilization Cat.
600V 500V 240V 120V
1.2A 1.4A 3A 6A
600V 500V 250V 125V
0.4A 0.55A 1.1A 2.2A
A600/AC-15 (Ue)
(Ie)
N600/DC-13 (Ue)
(Ie)
Description
The large metal Senator safety limit switches conform to EN 50041
and have been developed to provide a range of options including
metal or plastic cases in various sizes, a choice of snap acting, slow
break/make with 2, 3 or 4 contact configurations and a choice of
actuator heads.
Min Current
Thermal Current (lth)
Rated Insulation Voltage
5V, 5mA, DC
10A
600V AC
Rated Impulse withstand Volt 2500V
Travel for Positive Opening
Max Switching Speed
Min Switching Speed
Max Switching Frequency
Case Material
Various (see Product Selection table)
250mm/s
100mm/min
6000 operation per hour
Die cast alloy
See “Product Selection” table
IP 66
The Senator range offers the option of rotating the head in 90°
increments before installation to allow ease of mounting.
Allen-Bradley/Guardmaster limit switches can be used in other
applications other than guard doors, for example on moving
machine beds, crane arms, lifts, elevators, etc.
Actuator Material
Enclosure Protection
Operating Temperature
Pollution Degree ➊
Mechanical Life Expectancy
Min -25°C (-18°F) Max 80°C (+176°F)
3
Operation of these limit switches is achieved by the sliding action of
the guard or other moving object deflecting the plunger or lever. For
safety applications it is important that upon actuation, the guard or
other moving objects should not pass completely over the switch
and allow the plunger or lever to return to its original position.
7
1 x 10
Conduit Entry
Fixing
M20 or 1/2in NPT
2 x M5
Mounting
Colour
Any position
Red
Features
➊ Conductive pollution occurs, or dry, non conductive pollution occurs which
•
•
•
Large selection of actuator heads
becomes conductive due to condensation.
Positive operation, forced disconnection of contacts
Snap-acting, slow make before break or slow break before make
contact blocks
O perating Exam ples
Cam Displacem ent
(A)
•
•
Contacts 1 N.C. + 1 N.O., 2 N.C. + 1 N.O. 3 N.C., 2 N.C. + 2
N.O., 3 N.C. + 1 N.O., or 4 N.C.
30°
Conforms to EN 50041, EN 1088, EN 60947-5-1, EN 292 and
EN 60204-1
Adjustable Lever Arm s
30°
30° 30°
30°
60°
60°
60°
60°
Applications Types
The actuating cam should be profiled at 30° for optimum operation.
(Note: Plunger-type switches operate from a flat profile.
7-8
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