800-257-3526 | contact us Product Selector

1/2" Disc CA/OA Automatic Series

Selco’s comprehensive line of highly reliable switches utilize a temperature sensitive bi-metal disc, electrically isolated from the switch. Contacts will close (CA Series) or open (OA Series) on temperature rise when the surface or ambient temperature increases to the snap point of the calibrated bi-metal disc. The entire switch is enclosed in a phenolic dust-free housing. The bi-metal disc is retained by a metal heat conducting sensing cap and are all single pole, single throw non-adjustable switches. To provide flexibility for customer specific applications, we offer a variety of terminal and mounting configurations.

CA/OA Series
OA-100-LPH
CA-107-QCV
OA-130-ST

Custom Manufacturing options are available including: brackets, pipe and tube mounts, lead termination, over-molding and epoxy sealing.

TECHNICAL SPECIFICATIONS

  Environmental Temperature Electrical Ratings Insulation Resistance Circuit Resistance Dielectric Strength Certifications
Silver Contacts -40°F - 350°F (-40°C-177°C)  125VAC, 15A, Resistive, 100,000 Cycles ≥100mΩ (with a 500VDC Megger) ≤50mΩ (initial value)

1,500VAC/1-min

or 1,800VAC/1-sec

UL (E145478, XAPX2),
CSA (1061290), RoHS
Gold Contacts

-40°F - 350°F (-40°C-177°C)

30VDC, 1A, Resistive, 100,000 Cycles

120VAC, 125VA (Pilot Duty), 1A

≥100mΩ (with a 500VDC Megger) ≤10mΩ (initial value) 1,200VAC/1-min UL (E145478, XAPX2),
c-UL (E145478, XAPX8), RoHS

TEMPERATURE RANGES AND TOLERANCES

Temperature Range Temperature Tolerance (Open)

Temperature Tolerance (Close)

Differential
32°-122°F (0°-50°C) ±7.2°F (4°C) ±9°F (5°C) Customer Specified
123°-212°F (51°-100°C) ±7.2°F (4°C) ±10.8°F (6°C) Customer Specified
213°-302°F (101°-150°C) ±9°F (5°C) ±12.6°F (7°C) Customer Specified

EVERYDAY APPLICATIONS

Warming Equipment, Fan Heaters, Refrigerators, Dryers, Washing Machines, Electric Heaters, Furnaces, Boilers, Microwave Ovens, Water Heaters, Fireplaces, Coffee Makers, Seat Heaters Toasters, And More...

DOWNLOADS:
1/2" CA/OA Series

 

Find a Product

Can’t Find the Product You’re Looking For?

Talk to a Sales Expert Today. 800-257-3526