APL-4 Limit Switch Box
Series 4A
APL-4 Limit Switch Box
Explosion proof
• Aluminum die casting that is robust.
• Up to 20 terminal points
• With spring loaded cams, limit positions can be easily set without tools.
• High visibility dome indicator with a double sealed structure prevents water ingress in case of a dome failure.
The SIMMEL Valve limit switch is a field instrument used in automatic control systems to detect the status of valves. It is used to output the opening or closing position of the valve as a switch signal, which is received by the remote controller or sampled by the computer. After confirmation, the next step of the program is executed. This product can also be used as an important valve interlock protection and remote alarm indication in automatic control systems.
APL-4 Limit Switch Box
CE, cULus (most models), SIL 3 capable
IECEx (Ex db IIB T6 Gb)
ATEX (II 2G Ex db IIB T6 Gb)
CSA (Class I, Division 1, Groups C & D T6)
EAC (1 Ex d IIB T6 Gb)
KCs (Ex d IIB T6 IP67)
CCC (Ex d IIB T6 Gb)
SIL 3
ABS type approval
RMRS type approv
RINA type approval
Enclosure Ratings
IP66
IP67
IP68
Ex db IIB T6
NEMA 4/4X, UL50E Salt Spray
Watertingt enclosure: IP68 (10m, 72 hours)
Visual Display
High Visibility Indicator
Beacon Color Options: Red/Yellow (Standard), Red/Green, Black/Yellow, Red/Green InverseSwitch Options
Mechanical: SPDT, SPDT (Low Power)
Proximity: PNP, NPN, 140V 2-Wire, 250V 2-Wire, Reed,
NAMUR Intrinsically Safe
Mounting
VDI/VDE 3845 Compliant (NAMUR)
Switch Quantities
2 / 3 / 4 / 6
Temperature Range
-13°F to 149°F (-25°C to 65°C)
Conduit Ports
2x ½” NPT or 2x M20, 2x ¾” NPT or 2x M25”
Model / Type
APL-410N APL-411N APL-412N APL-414N
APL-416N APL-420N APL-421N APL-430N
Material
Aluminium alloy
Features & Benefits
International standards
IP66/67, NEMA 4/4X, UL50E Salt Spray
NAMUR mounting design
Mechanical: SPDT, SPDT (Low Power)
Multi functional adjustable mounting bracket
Proximity: PNP, NPN, 140V 2-Wire, 250V 2-Wire
High performance and long lifespan
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