Ordering/electrical specifications, General specifications, Mounting configurations – Edwards Signaling 181 Series User Manual
Page 2
Ordering/Electrical Specifications
PART NUMBER
1
CONTACT
2
LOAD RATING
SWITCHING VOLTAGE
SWITCHING CURRENT
CONTACT
SENSE RANGE
3
BREAK RANGE
TERMINAL
CONFIG.
AC/DC
MAXIMUM, AC/DC
MAXIMUM, AC/DCRESISTANCE
NOMINAL
NOMINAL
TYPE
181-4Z
SPDT
100VA/84W
3.0A@34V
3.0A@28V
0.2 Ohms
1.4"(3.5cm)
1.8"(4.6cm)
#6 Screw
181-7Z
N.O.
100VA/84W
4
3.0A
4
@34V
3.0A
4
@28V
0.2 Ohms
1.4"(3.5cm)
1.8"(4.6cm)
#6 Screw
181-8Z
6
N.O./
150VA/NA
NA
1.25A@120V
5
NA
NA
1.9"(4.8cm)
2.2"(5.6cm)
#6 Screw
183-4Z
SPDT
100VA/84W
3.0A@34V
3.0A@28V
0.2 Ohms
1.4"(3.5cm)
1.8"(4.6cm)
#6 Screw
183-7Z
N.O.
100VA/84W
3.0A@34V
3.0A@28V
0.2 Ohms
1.4"(3.5cm)
1.8"(4.6cm)
#6 Screw
183-8Z
N.O./
150VA/NA
NA
1.25A@120V
NA
NA
1.9"(4.8cm)
2.2"(5.6cm)
#6 Screw
Warning— Each electrical rating is an individual maximum and cannot be exceeded!
1
The part number 183 is the same as 181 in all respects except the conduit connection, 181 is left and 183 is right.
2
Configuration with actuator away from the switch
3
Proximity of ferrous materials usually reduces sense range — typically by 50%. The shape and type of material cause a wide diversity of effects.
Testing is required to determine actual sense range for specific applications.
4
Rated at 3.0A for 6,000 cycles only. Other ratings are at 100,000 cycles.
5
Can withstand inrush surge up to 4 amps. Voltage Drop 1.5V, minimum switch current 30mA.
6
Maximum 10 switches in series.
General Specifications
Enclosure
Coated Aluminum
Temperature Range
-40
°
F to 180
°
F (-40
°
C to 80
°
C)
Environmental
Hermetically Sealed Contact Switch
Sealed in Polyurethane
NEMA Rating
1, 2, 5
Protection Class
IP 64
Response Time
1 msec; 10msec (150VA)
Life Cycles
100,000 Under Full Load;
Up to 200,000,000 Under Dry Circuit
Conduit Connection
1/2" Threaded NPT
Parallel Actuation
Not Recommended
Perpendicular
Actuation
Door
Actuation
Pivot Actuation
Best
Best
Figure 2
Good
Mounting Configurations
Three configurations are appropriate for interlock applications. The parallel
actuation can result in on/off/on signal if the actuator passes by the switch rather
than coming to rest in proximity to it. This is NOT a recommended configuration for
interlock applications.
triac
output
triac
output
2. Mount the switch on the stationary frame of the machine and connect the electrical
wiring. When mounting the switch on an ungrounded machine, connect the ground
lead to one of the mounting screws.
3. Mount the actuator on the movable guard, door, or gate.
SPDT Connection for
181-4Z and 183-4Z
P/N 11506 • REV D • REB 17MAY13