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Limit Switches

Furnace limit switches are safety devices used to monitor temperature and protect HVAC equipment from overheating conditions. NWF Supply offers a selection of OEM replacement limit switches compatible with major HVAC manufacturers including Nordyne, Trane, and York.

These limit switches are designed to open or close electrical circuits based on temperature, helping to prevent excessive heat buildup and ensure safe furnace operation. All replacement limit switches are matched to original equipment specifications for temperature rating, electrical configuration, mounting style, and physical dimensions to ensure proper system protection and reliable performance.

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$0.00 - $0.00
$0.00
$57.75
$57.75 - $57.75
$57.75

HH19ZA950 Carrier Limit Switch

Carrier
Out of stock

Carrier® Limit Switch, 150 deg F

$0.00 - $0.00
$0.00
$57.75
$57.75 - $57.75
$57.75
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$204.78 - $204.78
$204.78
$204.78 - $204.78
$204.78

L4064B2210 Honeywell Fan and Limit Switch

Honeywell International Inc
Out of stock

Honeywell Fan and Limit Switch, L4064 Series, 14 A, Fan Switch: Makes on Rise, High Limit Switch: Breaks on Rise Switching Action, 100 to 250 deg F...

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$204.78 - $204.78
$204.78
$204.78 - $204.78
$204.78
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$197.12 - $197.12
$197.12
$197.12 - $197.12
$197.12

L4064B2228 Honeywell Fan and Limit Controller

Honeywell International Inc
Out of stock

Honeywell Fan and Limit Controller, SPDT Switching Action, 100 to 250 deg F, Surface Mounting, 4-9/32 in H x 3 in W x 4-9/32 in D

$197.12 - $197.12
$197.12
$197.12 - $197.12
$197.12
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$158.52 - $158.52
$158.52
$158.52 - $158.52
$158.52

L4029E1029/U Honeywell Reset Limit Control

Resideo Technologies Inc
Out of stock

Honeywell Home Reset Limit Control, 125/135/165/200/240 VAC, 0.25 A, SPST, Manual Switching Action, 190 deg F Opening Temperature, 60 A at 120 VAC,...

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$158.52 - $158.52
$158.52
$158.52 - $158.52
$158.52
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$32.02 - $32.02
$32.02
$32.02 - $32.02
$32.02

HH12ZB250 Carrier Limit Switch

Carrier
Out of stock

Carrier® Limit Switch, 210 to 250 deg F

$32.02 - $32.02
$32.02
$32.02 - $32.02
$32.02
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$30.60 - $30.60
$30.60
$30.60 - $30.60
$30.60

HH12ZB160 Carrier Limit Switch

Carrier
Out of stock

Carrier® Limit Switch, 160 deg F, 40 deg F Differential

$30.60 - $30.60
$30.60
$30.60 - $30.60
$30.60
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$33.15 - $33.15
$33.15
$33.15 - $33.15
$33.15

HH12ZB200 Carrier Limit Switch

Carrier
Out of stock

Carrier® Limit Switch, 160 to 200 deg F

$33.15 - $33.15
$33.15
$33.15 - $33.15
$33.15
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$1,071.45 - $1,071.45
$1,071.45
$1,071.45 - $1,071.45
$1,071.45

DC120L10001000 Honeywell Temperature Limit Controller

Honeywell International Inc
Out of stock

Honeywell Temperature Limit Controller, 90 - 264 V, SPDT Switch, 50/60 Hz, -13 to 65 deg F, +/-0.5% Full Scale Accuracy, 3 A at 240 VAC Contact Rating

$1,071.45 - $1,071.45
$1,071.45
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$1,071.45
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$111.14 - $111.14
$111.14
$111.14 - $111.14
$111.14

4520-0011-002 QMARK Linear Limit Protector

Marley Engineered Products
Out of stock

QMARK® Linear Limit Protector

$111.14 - $111.14
$111.14
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$111.14
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$93.05 - $93.05
$93.05
$93.05 - $93.05
$93.05

4520-0011-000 QMARK Linear Limit Protector

Marley Engineered Products
Out of stock

QMARK® Linear Limit Protector, 300 deg F, For Use With: Model MUH-03 Thru MUH-05 Unit Heaters

$93.05 - $93.05
$93.05
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$93.05
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$64.40 - $64.40
$64.40
$64.40 - $64.40
$64.40

100208544 Lochinvar High Limit Outlet Sensor

Lochinvar
Only 1 left!

Lochinvar® High Limit Outlet Sensor, For Use With: FTXL™ FTX400 850(N/L) Heating Boiler

$64.40 - $64.40
$64.40
$64.40 - $64.40
$64.40
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$56.49 - $56.49
$56.49
$56.49 - $56.49
$56.49

10052101 Titus Disc Limit Switch

Titus
Out of stock

Titus Disc Limit Switch, Snap Switching Action, 115 deg F, 30 deg F Differential

$56.49 - $56.49
$56.49
$56.49 - $56.49
$56.49
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$28.60 - $28.60
$28.60
$28.60 - $28.60
$28.60

12A34 Maxitrol Vent Limiting Device

Maxitrol Company
Out of stock

Maxitrol® Vent Limiting Device, 3/8 in, NPT Connection, Brass, Additional Information: For Use With RV81 Regulators

$28.60 - $28.60
$28.60
$28.60 - $28.60
$28.60
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$33.06 - $33.06
$33.06
$33.06 - $33.06
$33.06

12A39 Maxitrol Vent Limiting Device

Maxitrol Company
Out of stock

Maxitrol® Vent Limiting Device, 3/8 in, Threaded Connection, Brass, Additional Information: For Use With 325-3 and 325-3L Regulators

$33.06 - $33.06
$33.06
$33.06 - $33.06
$33.06
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York Coleman Luxaire Limit Switch S1-025-41318-000
$0.00 - $0.00
$0.00
$15.00
$15.00 - $15.00
$15.00

York Coleman Luxaire Limit Switch S1-025-41318-000

Johnson Controls (York)
Only 1 left!

This is a brand new OEM York Part Number # (S1-025-41318-000) Limit Switch, for Coleman and Luxaire 

$0.00 - $0.00
$0.00
$15.00
$15.00 - $15.00
$15.00
025-30324-000 York Coleman OEM Gas Furnace Limit Control Switch L370
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$0.00 - $0.00
$0.00
$20.00
$20.00 - $20.00
$20.00

025-30324-000 York Coleman OEM Gas Furnace Limit Control Switch L370

Johnson Controls (York)
Out of stock

This is a brand new OEM Part# S1-025-27747-018 York Limit Switch.  This is the OEM replacement switch for part# 024-30324-000 370 Deg F Open, Manua...

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$0.00 - $0.00
$0.00
$20.00
$20.00 - $20.00
$20.00
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S1-7724-3791- York Luxaire Coleman OEM Furnace Limit Switch L180
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$0.00
$20.00
$20.00 - $20.00
$20.00

S1-7724-3791- York Luxaire Coleman OEM Furnace Limit Switch L180

Johnson Controls (York)
Only 2 left!

This is a brand new OEM York Limit Switch Part# S1-7624A3591  This is the replacement for part# S1-7724-3791

$0.00 - $0.00
$0.00
$20.00
$20.00 - $20.00
$20.00
02527747018 York Coleman Gas Furnace Limit Control Switch
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$0.00 - $0.00
$0.00
$20.00
$20.00 - $20.00
$20.00

02527747018 York Coleman Gas Furnace Limit Control Switch

Johnson Controls (York)
Out of stock

02527747018 York Limit Switch 370 Deg F Open, Manual Close, Limit Control Switch for PT8B12N100DH11C/PT8C16N100DH11C/PT8C20N120DH11C 5/6-Burner 2-S...

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$0.00 - $0.00
$0.00
$20.00
$20.00 - $20.00
$20.00
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S1-02527747018 York Coleman Gas Furnace Limit Control Switch
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$0.00 - $0.00
$0.00
$20.00
$20.00 - $20.00
$20.00

S1-02527747018 York Coleman Gas Furnace Limit Control Switch

Johnson Controls (York)
Out of stock

S1-02527747018 York Limit Switch 370 Deg F Open, Manual Close, Limit Control Switch for PT8B12N100DH11C/PT8C16N100DH11C/PT8C20N120DH11C 5/6-Burner ...

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$0.00 - $0.00
$0.00
$20.00
$20.00 - $20.00
$20.00
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S1-02634028002- York OEM Furnace Replacement 3" Limit Switch
S1-02634028002- York OEM Furnace Replacement 3" Limit Switch
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$0.00 - $0.00
$0.00
$30.00
$30.00 - $30.00
$30.00

S1-02634028002- York OEM Furnace Replacement 3" Limit Switch

Johnson Controls (York)
Out of stock

S1-02634028002- York OEM Furnace Replacement 3" Limit Switch Rated At 175 Degrees (L175F-30) (New Part # S1-2702-316P/A)  

$0.00 - $0.00
$0.00
$30.00
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$30.00
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S1-02634726004- York OEM Furnace Replacement 3" Limit Switch
S1-02634726004- York OEM Furnace Replacement 3" Limit Switch
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$0.00 - $0.00
$0.00
$30.00
$30.00 - $30.00
$30.00

S1-02634726004- York OEM Furnace Replacement 3" Limit Switch

Johnson Controls (York)
Out of stock

S1-02634726004- York OEM Furnace Replacement 3" Limit Switch Rated At 175 Degrees (L175F-30) (New Part # S1-2702-316P/A)  

$0.00 - $0.00
$0.00
$30.00
$30.00 - $30.00
$30.00
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36T01B3-42275- Trane OEM Furnace 3" Limit Switch L200-30
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$72.00 - $72.00
$72.00
$72.00 - $72.00
$72.00

36T01B3-42275 Trane American Standard OEM Furnace 3" Limit Switch L200-30

Ingersoll-Rand PLC (Trane)
Out of stock

36T01B3-42275-  Trane Furnace 170-200F AUTO Limit Switch New part number (SWT1260)

$72.00 - $72.00
$72.00
$72.00 - $72.00
$72.00
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Trane American Standard Thermal Limit Switch L220 SWT1273 SWT01273
$0.00 - $0.00
$0.00
$66.00
$66.00 - $66.00
$66.00

Trane American Standard Thermal Limit Switch L220 SWT1273 SWT01273

Ingersoll-Rand PLC (Trane)
Only 2 left!

This is a brand new OEM Trane pressure switch part# SWT1273.  This is the OEM replacement for part's C340056P10

$0.00 - $0.00
$0.00
$66.00
$66.00 - $66.00
$66.00
SWT1277- Trane, American Standard Furnace 3" OEM Limit Switch
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$0.00 - $0.00
$0.00
$70.00
$70.00 - $70.00
$70.00

SWT1277- Trane, American Standard Furnace 3" OEM Limit Switch

Ingersoll-Rand PLC (Trane)
Out of stock

SWT1277- Trane, American Standard Furnace 3" OEM Limit Switch

$0.00 - $0.00
$0.00
$70.00
$70.00 - $70.00
$70.00
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