OMRON A3PA-90B21-28

Number of notches: 2 notches.
Output: SPDT.
Reset method: Automatic.
Key release position: Left.
Separate Construction with Cylindrical.
16-dia. Body.
Short mounting depth, less than 28.5 mm below panel.
Wide range of switching capacity from standard to microload.
Oil-resistant IP65 models. Case color: Black .
Control output: Voltage output (for driving SSR) A3PA-90B21-28.
Control mode *1: Standard or heating/cooling A3PA-90B21-28
No. of auxiliary outputs: 2.
Detection of heater burnout, SSR failure, and heater overcurrent: --.
No. of event inputs: --.
Transfer output *2: --.
Communi cations: RS-485.
Previous model: Thermocouple input, --;
Resistance thermometer input, -- A3PA-90B21-28.
New 48 x 24-mm Basic Temperature,
Controller with Enhanced Functions and,
Performance . Improved Indication Accuracy,
and Preventive Maintenance Function.
Indication Accuracy.
Thermocouple input: ±0.3% of PV (previous models: ±0.5%),
Pt input: ±0.2% of PV (previous models: ±0.5%),
Analog input: ±0.2% FS (previous models: ±0.5%),
Models are available with screw terminal blocks or screwless,
clamp terminal blocks A3PA-90B21-28.
A PV/SV-status display function can be set to automatically alternate,
between displaying the status of the Temperature Controller (auto/
manual, RUN/STOP, and alarms) and the PV or SV .
Preventive maintenance for relays in the Temperature,
Controller using a Control Output ON/OFF Counter.
Switch the PV display between three colors.
Compatible with Support Software (CX-Thermo version 4.2 or higher).
Eleven-segment displays.
Models are available with one or two alarm outputs. Output method: Relay.
Inputs: ---.
Outputs: 32.Actuator: Sealed top-roller plunger.
Indicator: LED.
Item: Basic.
Pretravel (PT): 1.7 mm max.
Select the Best Two-circuit Switch for the,
Operating Environment and Application,
from a Wide Range of Models,
A wide selection of models is available, including Generaal-purpose,
Environmennt-resistant, and Spatter prevention Switches A3PA-90B21-28.
Standard-feature gold-clad crossbar contacts provide high reliability.
Applicable to either standard loads or microloads.
Switches with Lever Actuators provide 90° overtravel,
one-side operation, aandd four-direction head mounting A3PA-90B21-28.
Approved standards: EN/IEC, UL, cUL, and CCC.
Contact your OMRON representative for information on approved models.
A3PA-90B21-28 Operation manual / Instructions / Catalog download link: /searchDownload.html?Search=A3PA-90B21-28&select=5