Features:

L4029E Reset Limit Control Opens a Line or Low Voltage Circuit If the Air Temperature Reaches a Critical Level L4029E Acts as a Fire Thermostat in the Ducts of Ac and Ventilating Systems If the Air Temperature Indicates a Fire, the Fan is Shut Down
Shuts Off the Fan When Air Temperature is Indicative of Fire
Internal Snap Acting Switch Actuated by a Bimetal Strip Inserted
Directly into the Air Stream Responds Rapidly to Temperature Changes

Specifications:

Manufacturer: Honeywell
Manufacturer Part Number: L4029E1219
Product Type: Fan and Limit Controller
Element Insertion Length: 3"
Temperature Limit: 190 Degrees F (Switch), 350 Degrees F (Element)
Contact Rating: 2 A @ 30 VAC/10 A @ 120 VAC/5 A @ 240 VAC Limit (Full Load), 60 A @ 120 VAC/30 A @ 240 VAC Limit (Locked Rotor), 0.25 A @ 0.25 to 12 VDC (Pilot Duty)
Connection Type: 1/2" Conduit
Switch Type: Normally Closed SPST
Dimensions: 4.55" x 7.4" x 2.7"
Weight: 0.88 lb.