K8AB-TH11S AC100-240 Omron, K8AB-TH11S AC100-240 Datasheet - Page 4

• Manufacturer Part Number: K8AB-TH11S AC100-240
• Description: Low Temp 0-399 C Monitor Relay
• Manufacturer: Omron
• Series: K8ABr
• Type: Temperature Monitorr

Specifications of K8AB-TH11S AC100-240

• Input Type: RTD, Thermocouple (Multiple)
• Controller Type: On/Off
• Temperature Range: Selectable, Varies By Input Type
• Output Type: Relay
• Supply Voltage: 100 ~ 240VAC
• Size: DIN Rail Module
• Coil Voltage: 100 VAC to 240 VAC
• Contact Termination: Screw
• Mounting Style: DIN Rail
• Power Consumption: 5 VA
• Operating Temperature Max: 55°C
• Operating Temperature Min: -10°C
• Temperature Accuracy ±: 2%
• Output Voltage Max: 250VAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Display Type: -
• Communications: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: K8AB-TH11S-AC100-240; K8ABTH11SAC100240; Z2808

4
Measuring and Monitoring Relays
The K8AB-AS 1-Phase Current Relay can be
used with commercial CTs for current
measurement.
Commercial
Usable as a Simple Sensor
Controller Accepts 4 to 20 mA or
0 to 10 V inputs.
Compatible with Commercial CTs
Many customers require the individual upper and lower limit outputs that are
normally available only in larger 45-mm relays. For the first time from any
manufacturer, OMRON has achieved this and more in a slim-body design
measuring just 22.5 mm. These relays not only offer advantages such as 3-
phase power supply compatibility and a resistive load contact capacity of 6 A at
250 VAC, but they also reduce panel production cost because they use 50% less
space than previous models.
* The relay output capacity for the K8AB-TH is 3 A at 250 VAC (resistive load).
Over voltage and under voltage can be set for the full
span of the allowable input range, so over voltage and
under voltage can now be monitored with flexibility.
* The setting range for operation time can be set within -30% to +25% of the range selected
using the DIP switch on the Unit.
Provides individual over voltage and under voltage
settings and outputs.
Mode 1 Over Voltage/Under Voltage Mode 2 Over Voltage/Over Voltage Mode 3 Under Voltage/Under Voltage
AL1
AL2
Ry1
Ry2
OMRON-compatible CT: K8AC-CT200L
1
2
3
CTs
Only the K8AB-AS3 can be used for
AC operation at both 100 and 200 A.
0 to 1 A AC
0 to 5 A AC
CT current on
secondary side
Slim 22.5-mm Design Features
Two SPDT Relay Outputs
(K8AB-VW, K8AB-PM, and K8AB-PW)
Pre-alarm Monitoring Mode
Provides Advanced Warning (K8AB-VW Only)
Expanded Setting Range Ensures Over Voltage and
Under Voltage Monitoring Flexibility
Applicable model
K8AB-AS2
AL1
AL2
Ry1
Ry2
Pre-alarm warning
1-/3-phase Power Supply
Various relay functions can be selected using a DIP switch. This means that the number
of models required can be reduced to 1/8 what it had been simply by installing a relay like
the K8AB-AS. An added advantage is that it reduces the inventory of maintenance parts.
AL1
AL2
Ry1
Ry2
DIP Switch Function Selection
Example: K8AB-PW 3-phase Voltage Relay
Pre-alarm warning
• Three-phase, three-wire Mode
• 480-VAC setting
Rated input voltage
* The operating time can be set to 0.1 to 30 s.
* SW1 is not used.
Example: K8AB-AS 1-Phase Current Relay
Resetting method
Relay drive
method
Operating mode
In plants and other sites that operate 365 days a
year, unexpected shutdowns must be kept to an
absolute minimum. OMRON addresses this problem
with the K8AB-VW featuring a pre-alarm monitoring
mode that can be set to two levels for two outputs.
K8AB-VW makes scheduled maintenance possible
because the pre-alarm monitoring mode provides
advance warning of impending trip alarms.
Relay 1 over voltage
Two SPDT Relay Outputs
600 VAC
336 VAC
SW2
SW3
SW4
DIN-sized at 22.5 mm
DIP switch
Under voltage
Contact capacity:
6 A at 250 VAC
(Compared to previous models)
OFF
ON
OFF
ON
OFF
ON
Cut by 50%
Setting
range
Space savings
Relay 2 under voltage
Manual reset
Automatic reset
Normally open
Normally closed
Over current
Under current
600 VAC
336 VAC
Function
Over voltage
Setting
range