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$18.04
Rectorseal Safe-T-Switch 97632 Condensate Overflow Switch, Easy Access, Includes 3/4" Adapter
Amazon.com
839
$18.04
Rectorseal Safe-T-Switch 97632 Condensate Overflow Switch, Easy Access, Includes 3/4" Adapter
Amazon.com
839
$12.99
Rectorseal Safe-T-Switch 97647 Condensate Overflow Switch, Slim Design, HVAC
Amazon.com
371
Free shipping
$12.99
Rectorseal Safe-T-Switch 97647 Condensate Overflow Switch, Slim Design, HVAC
Amazon.com
371
$16.99
SS2 AC Float Switch AC Float Safety Switch HVAC 3/4 Inch Condensate Shut Off Sensor Can Prevent Overflow In Drain Pan Or Gravity Drain Used In Various
Amazon.com
3
$16.99
SS2 AC Float Switch AC Float Safety Switch HVAC 3/4 Inch Condensate Shut Off Sensor Can Prevent Overflow In Drain Pan Or Gravity Drain Used In Various
Amazon.com
3
$33.22
Safe-T-Switch - SS2 Secondary Line Condensate Overflow Control Switch
Skip The Warehouse
39
$33.22
Safe-T-Switch - SS2 Secondary Line Condensate Overflow Control Switch
Skip The Warehouse
39
$178.70
Siemens HF361 30-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
63
Free shipping
$178.70
Siemens HF361 30-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
63
$68.05
$83.84
SIEMENS 2P 60A 240V General Duty Safety Switch Indoor, Non-Fusible
Amazon.com
56
Free shipping
18% off
$68.05
$83.84
SIEMENS 2P 60A 240V General Duty Safety Switch Indoor, Non-Fusible
Amazon.com
56
$36.80
$64.08
Rectorseal EZ Trap 83210 Float Switch Overflow Protection, Easy Installation, HVAC, 3/4", 1" Deep
Amazon.com
108
Free shipping
42% off
$36.80
$64.08
Rectorseal EZ Trap 83210 Float Switch Overflow Protection, Easy Installation, HVAC, 3/4", 1" Deep
Amazon.com
108
$52.99
30 Amp Disconnect Switch,3 Pole Safety Switch,Non-Fusible,Indoor&Outdoor,Meeting NEMA 3R Standards,Galvanized Steelanti Corrosion And Rust Prevention
Amazon.com
41
Free shipping
$52.99
30 Amp Disconnect Switch,3 Pole Safety Switch,Non-Fusible,Indoor&Outdoor,Meeting NEMA 3R Standards,Galvanized Steelanti Corrosion And Rust Prevention
Amazon.com
41
$708.65
Siemens HF364R 200-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
6
Free shipping
$708.65
Siemens HF364R 200-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
6
$439.78
Siemens HF363NR 100-Amp 3 Pole 600-Volt 4 Wire Fused Heavy Duty Safety Switches
Amazon.com
6
Free shipping
$439.78
Siemens HF363NR 100-Amp 3 Pole 600-Volt 4 Wire Fused Heavy Duty Safety Switches
Amazon.com
6
$26.99
Rectorseal Aquaguard 96106 1200+ Switch, Easy Installation, HVAC
Amazon.com
124
$26.99
Rectorseal Aquaguard 96106 1200+ Switch, Easy Installation, HVAC
Amazon.com
124
$450.91
Siemens HF363 100-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
10
Free shipping
$450.91
Siemens HF363 100-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
10
$21.65
Goodman-Amana B1370819 Safety Switch, B1370819 | Supplyhouse.Com
SupplyHouse.com
1
$21.65
Goodman-Amana B1370819 Safety Switch, B1370819 | Supplyhouse.Com
SupplyHouse.com
1
$108.09
Siemens Safety Switch: Non-Fusible, 30 A, Three Phase, 240V AC, Galvanized Steel, Indoor Model: GNF321A
Grainger
10
$108.09
Siemens Safety Switch: Non-Fusible, 30 A, Three Phase, 240V AC, Galvanized Steel, Indoor Model: GNF321A
Grainger
10
$70.24
$389.00
GNF321A Siemens Safety Switch
Standard Electric Supply Co.
10
81% off
$70.24
$389.00
GNF321A Siemens Safety Switch
Standard Electric Supply Co.
10
$83.11
Siemens Safety Switch: Non-Fusible, 60 A, Single Phase, 240V AC, Galvanized Steel, Indoor/Outdoor Model: LNF222RA
Grainger
319
$83.11
Siemens Safety Switch: Non-Fusible, 60 A, Single Phase, 240V AC, Galvanized Steel, Indoor/Outdoor Model: LNF222RA
Grainger
319
$804.97
Eaton Safety Switch: Fusible, 30 A, Three Phase, 600V AC, Galvanized Steel, Indoor Model: DH361FGK
Grainger
$804.97
Eaton Safety Switch: Fusible, 30 A, Three Phase, 600V AC, Galvanized Steel, Indoor Model: DH361FGK
Grainger
$29.95
Little Giant Auxiliary Condensate Overflow Safety Switch - 5A, 18"L Wire, 599122
Global Industrial
13
$29.95
Little Giant Auxiliary Condensate Overflow Safety Switch - 5A, 18"L Wire, 599122
Global Industrial
13
$442.14
Siemens HNF364R 200-Amp 3 Pole 600-Volt 3 Wire Non-Fused Heavy Duty Safety Switches
Amazon.com
16
Free shipping
$442.14
Siemens HNF364R 200-Amp 3 Pole 600-Volt 3 Wire Non-Fused Heavy Duty Safety Switches
Amazon.com
16
$8.06
$11.91
Bloomfield 2T-47499 High Limit Switch Metal Safety Device For HVAC | Mavrik | Commercial Restaurant Supply
RestaurantSupply.com
32% off
$8.06
$11.91
Bloomfield 2T-47499 High Limit Switch Metal Safety Device For HVAC | Mavrik | Commercial Restaurant Supply
RestaurantSupply.com
$324.92
Siemens Safety Switch: Non-Fusible, 30 A, Three Phase, 600V AC, Galvanized Steel, Indoor Model: HNF361
Grainger
$324.92
Siemens Safety Switch: Non-Fusible, 30 A, Three Phase, 600V AC, Galvanized Steel, Indoor Model: HNF361
Grainger
$24.78
Nordyne 626352R Vent Safety Switch, 626352R | Supplyhouse.Com
SupplyHouse.com
1
$24.78
Nordyne 626352R Vent Safety Switch, 626352R | Supplyhouse.Com
SupplyHouse.com
1
$65.36
ABB TFN60RGFRCP 60A AC GFCI Disconnect Disconnect Switch A/C Type Pull Out 60A, 240V AC GFCI Receptacle NEMA 3R Metal
Amazon.com
11
Free shipping
$65.36
ABB TFN60RGFRCP 60A AC GFCI Disconnect Disconnect Switch A/C Type Pull Out 60A, 240V AC GFCI Receptacle NEMA 3R Metal
Amazon.com
11
$34.99
Rectorseal 97637 SS2 Safe-T-Switch® Secondary Drain Line Switch
Alpine Home Air Products
39
$34.99
Rectorseal 97637 SS2 Safe-T-Switch® Secondary Drain Line Switch
Alpine Home Air Products
39
$7,686.86
HF368NR - Siemens 1200A 600VAC 3-Pole Type VBII Enclosed Fusible Heavy Duty Safety Switch NEMA 3R Surface Mount
Essential Electric Supply
86% off
$7,686.86
HF368NR - Siemens 1200A 600VAC 3-Pole Type VBII Enclosed Fusible Heavy Duty Safety Switch NEMA 3R Surface Mount
Essential Electric Supply
$551.96
Rheem 62-21426-02 Pilot Safety Switch, 62-21426-02 | Supplyhouse.Com
SupplyHouse.com
$551.96
Rheem 62-21426-02 Pilot Safety Switch, 62-21426-02 | Supplyhouse.Com
SupplyHouse.com
$1,839.38
Siemens HNF363S 100-Amp 3 Pole 600-Volt 3 Wire Non-Fused Heavy Duty Safety Switches
Amazon.com
Free shipping
$1,839.38
Siemens HNF363S 100-Amp 3 Pole 600-Volt 3 Wire Non-Fused Heavy Duty Safety Switches
Amazon.com
Free shipping
$52.78
Io HVAC Controls IO-WWPC Io-Wwpc Warning Watchdog Encapsulated Pressure Control Switch | Supplyhouse.Com
SupplyHouse.com
$52.78
Io HVAC Controls IO-WWPC Io-Wwpc Warning Watchdog Encapsulated Pressure Control Switch | Supplyhouse.Com
SupplyHouse.com
$1,024.81
Siemens Safety Switch: Fusible, 30 A, Three Phase, 600V AC, Galvanized Steel, Indoor Model: HF361J
Grainger
$1,024.81
Siemens Safety Switch: Fusible, 30 A, Three Phase, 600V AC, Galvanized Steel, Indoor Model: HF361J
Grainger
$31.99
Rectorseal Safety Switch 4.53 in. W X 4.33 in. H White
Ace Hardware
10
$31.99
Rectorseal Safety Switch 4.53 in. W X 4.33 in. H White
Ace Hardware
10
$18.76
Rectorseal 97091 SC1 Safe-T-Switch
Skip The Warehouse
4
$18.76
Rectorseal 97091 SC1 Safe-T-Switch
Skip The Warehouse
4
$29.10
Little Giant 599125 ACS-4 Auxiliary In-Line Condensate Overflow Safety Switch | Supplyhouse.Com
SupplyHouse.com
3
$29.10
Little Giant 599125 ACS-4 Auxiliary In-Line Condensate Overflow Safety Switch | Supplyhouse.Com
SupplyHouse.com
3
$90.29
GNF322A Siemens Safety Switch
Standard Electric Supply Co.
154
$90.29
GNF322A Siemens Safety Switch
Standard Electric Supply Co.
154
$89.99
Rectorseal Safety Switch 2.75 in. W X 1.25 in. H White
Ace Hardware
$89.99
Rectorseal Safety Switch 2.75 in. W X 1.25 in. H White
Ace Hardware
$51.99
$69.99
30 Amp Disconnect Box, 3 Pole Fusible Safety Switch, 110/240V, Heavy Duty Metal Structure, Reserved Knout-Outs Design, NEMA 3R Enclosure For Outdoor,
Amazon.com
34
Free shipping
25% off
$51.99
$69.99
30 Amp Disconnect Box, 3 Pole Fusible Safety Switch, 110/240V, Heavy Duty Metal Structure, Reserved Knout-Outs Design, NEMA 3R Enclosure For Outdoor,
Amazon.com
34
$126.48
Rectorseal SS610E Safe-T-Switch Electronic Condensate Overflow Switch
Alpine Home Air Products
8
$126.48
Rectorseal SS610E Safe-T-Switch Electronic Condensate Overflow Switch
Alpine Home Air Products
8
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Shop safety switch hvac

Sponsored
About our ads
$18.04
Rectorseal Safe-T-Switch 97632 Condensate Overflow Switch, Easy Access, Includes 3/4" Adapter
Amazon.com
839
$18.04
Rectorseal Safe-T-Switch 97632 Condensate Overflow Switch, Easy Access, Includes 3/4" Adapter
Amazon.com
839
$12.99
Rectorseal Safe-T-Switch 97647 Condensate Overflow Switch, Slim Design, HVAC
Amazon.com
371
Free shipping
$12.99
Rectorseal Safe-T-Switch 97647 Condensate Overflow Switch, Slim Design, HVAC
Amazon.com
371
$16.99
SS2 AC Float Switch AC Float Safety Switch HVAC 3/4 Inch Condensate Shut Off Sensor Can Prevent Overflow In Drain Pan Or Gravity Drain Used In Various
Amazon.com
3
$16.99
SS2 AC Float Switch AC Float Safety Switch HVAC 3/4 Inch Condensate Shut Off Sensor Can Prevent Overflow In Drain Pan Or Gravity Drain Used In Various
Amazon.com
3
$33.22
Safe-T-Switch - SS2 Secondary Line Condensate Overflow Control Switch
Skip The Warehouse
39
$33.22
Safe-T-Switch - SS2 Secondary Line Condensate Overflow Control Switch
Skip The Warehouse
39
$178.70
Siemens HF361 30-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
63
Free shipping
$178.70
Siemens HF361 30-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
63
$68.05
$83.84
SIEMENS 2P 60A 240V General Duty Safety Switch Indoor, Non-Fusible
Amazon.com
56
Free shipping
18% off
$68.05
$83.84
SIEMENS 2P 60A 240V General Duty Safety Switch Indoor, Non-Fusible
Amazon.com
56
$36.80
$64.08
Rectorseal EZ Trap 83210 Float Switch Overflow Protection, Easy Installation, HVAC, 3/4", 1" Deep
Amazon.com
108
Free shipping
42% off
$36.80
$64.08
Rectorseal EZ Trap 83210 Float Switch Overflow Protection, Easy Installation, HVAC, 3/4", 1" Deep
Amazon.com
108
$52.99
30 Amp Disconnect Switch,3 Pole Safety Switch,Non-Fusible,Indoor&Outdoor,Meeting NEMA 3R Standards,Galvanized Steelanti Corrosion And Rust Prevention
Amazon.com
41
Free shipping
$52.99
30 Amp Disconnect Switch,3 Pole Safety Switch,Non-Fusible,Indoor&Outdoor,Meeting NEMA 3R Standards,Galvanized Steelanti Corrosion And Rust Prevention
Amazon.com
41
$708.65
Siemens HF364R 200-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
6
Free shipping
$708.65
Siemens HF364R 200-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
6
$439.78
Siemens HF363NR 100-Amp 3 Pole 600-Volt 4 Wire Fused Heavy Duty Safety Switches
Amazon.com
6
Free shipping
$439.78
Siemens HF363NR 100-Amp 3 Pole 600-Volt 4 Wire Fused Heavy Duty Safety Switches
Amazon.com
6
$26.99
Rectorseal Aquaguard 96106 1200+ Switch, Easy Installation, HVAC
Amazon.com
124
$26.99
Rectorseal Aquaguard 96106 1200+ Switch, Easy Installation, HVAC
Amazon.com
124
$450.91
Siemens HF363 100-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
10
Free shipping
$450.91
Siemens HF363 100-Amp 3 Pole 600-Volt 3 Wire Fused Heavy Duty Safety Switches
Amazon.com
10
$21.65
Goodman-Amana B1370819 Safety Switch, B1370819 | Supplyhouse.Com
SupplyHouse.com
1
$21.65
Goodman-Amana B1370819 Safety Switch, B1370819 | Supplyhouse.Com
SupplyHouse.com
1
$108.09
Siemens Safety Switch: Non-Fusible, 30 A, Three Phase, 240V AC, Galvanized Steel, Indoor Model: GNF321A
Grainger
10
$108.09
Siemens Safety Switch: Non-Fusible, 30 A, Three Phase, 240V AC, Galvanized Steel, Indoor Model: GNF321A
Grainger
10
$70.24
$389.00
GNF321A Siemens Safety Switch
Standard Electric Supply Co.
10
81% off
$70.24
$389.00
GNF321A Siemens Safety Switch
Standard Electric Supply Co.
10
$83.11
Siemens Safety Switch: Non-Fusible, 60 A, Single Phase, 240V AC, Galvanized Steel, Indoor/Outdoor Model: LNF222RA
Grainger
319
$83.11
Siemens Safety Switch: Non-Fusible, 60 A, Single Phase, 240V AC, Galvanized Steel, Indoor/Outdoor Model: LNF222RA
Grainger
319
$804.97
Eaton Safety Switch: Fusible, 30 A, Three Phase, 600V AC, Galvanized Steel, Indoor Model: DH361FGK
Grainger
$804.97
Eaton Safety Switch: Fusible, 30 A, Three Phase, 600V AC, Galvanized Steel, Indoor Model: DH361FGK
Grainger
$29.95
Little Giant Auxiliary Condensate Overflow Safety Switch - 5A, 18"L Wire, 599122
Global Industrial
13
$29.95
Little Giant Auxiliary Condensate Overflow Safety Switch - 5A, 18"L Wire, 599122
Global Industrial
13