Precision Switching Products
& Linear Position Sensors

AD048 – SPDT / SPST Surface Temperature Switch

CPI’s SnapStat line of bimetallic thermal switches have a bimetal snap disc that actuates a miniature microswitch. This double snap action makes these switches virtually immune to shock and vibration. Epoxy sealing or glass to metal hermetic sealing makes them ideal for demanding industrial or military applications.

SPDT (standard)
Normally-Open (AD048A) and Normally-Closed (AD048B)
Integral 20AWG Teflon-insulated wire leads
.750" (19.05mm) height x .656" (16.66mm) diameter
All-stainless steel construction

Detect surface temperatures from 0F-300F (-17.8C to 148C). All-aluminum construction.

Go To SnapStat (0F-300F)Go To Surface Mount Go To Thermal Switches

Product Dimensions
Wire Diagram
Specifications
Create Part Number

Calibration Temperature (factory set)
0F to +300F (-17.8C to +148C)
(normal operation on rising temperature; contact us for actuation on falling temperatures)

Safe Momentary Undershoot / Overshoot
-65F to +350F (-54C to +177C)

Setpoint Tolerance
±7F (±3.9C) (standard)
- special tolerance ±5F (± 2.8C) available for added fee

Actuation / Deactuation Differential
10F to 25F (5.5C to 13.9C), non-adjustable

Electrical Action
SPDT (standard) or SPST (specify NO or NC)

Electrical Rating
28VDC / 120VAC - 5A resistive, 3A inductive (standard)
220VAC - 5A resistive
Gold contacts*: 28VDC / 120VAC - 1A resistive
*(for special applications, sush as dry circuits or long periods of inactivity)

Endurance
50,000 electromechanical cycles per standard electrical rating

Electrical Terminations
20 AWG, Teflon insulated leads
Leads are insulated from mounting
Special glass-seal connections available

Weight
0.6 oz. to 2.3 oz.

Response Time Per MIL-S-24236, P4.7.5.1
From 15 secs. to 40 secs. (varies with thermal mass of switch body)

Harsh Environments / LVDT-based

Magnetostrictive / Long Stroke

Plunger and Ball Switches

Momentary and Limit Switches

Maintained Contact Switches and Waterproof Switch Panels

Snap Stat (0F–300F)

Plug Stat (0F-650F)

Rod & Tube (0F – 1750F)

AD048 – SPDT / SPST Surface Temperature Switch

Applications