Limit Switches

Limit Switches control equipment movement and detect object positions in HVAC, plumbing, and industrial systems. These crucial safety devices prevent equipment damage by automatically cutting power when preset limits are reached. Jackson Systems stocks quality switches in multiple actuator types and contact configurations – shop our complete selection today!

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Showing 193–240 of 1746 resultsSorted by popularity

300°F Rollout Safety Switch for Utica-Dunkirk Boilers

Utica-Dunkirk

SKU: 14631000
$9.90
MSRP: $11.39
You save 15%
Utica-Dunkirk 14631000 300F Rollout Switch quantity
144°C/291°F Thermal Cutoff Rollout Safety Switch

Utica-Dunkirk

SKU: 14629002
$7.20
MSRP: $8.28
You save 15%
Utica-Dunkirk 14629002 144°C/291°F Thermal Cutoff Rollout Switch quantity
Limit Switch, 210°F Open / 170°F Close

Utica-Dunkirk

SKU: 127000010
$88.25
MSRP: $101.49
You save 15%
Utica-Dunkirk 127000010 Limit Switch, 210°F Open / 170°F Close quantity
High Limit Auto Reset Control, 200°F Set Point

Laars Heating Systems

SKU: RE2217700
$375.50
MSRP: $431.83
You save 15%
Laars Heating Systems RE2217700 High Limit Auto Reset 200°F quantity
Low Water Cut-out for Boiler Protection

Laars Heating Systems

SKU: RE2076500
$573.89
MSRP: $659.97
You save 15%
Laars Heating Systems RE2076500 Low Water Cut-out quantity
Blocked Vent Switch for Laars Heating Systems

Laars Heating Systems

SKU: R2061100
$105.18
MSRP: $120.96
You save 15%
Laars Heating Systems R2061100 Blocked Vent Switch quantity
140/240F Limit Switch for Laars Heating Systems

Laars Heating Systems

SKU: R0061300
$186.16
MSRP: $214.08
You save 15%
Laars Heating Systems R0061300 140/240F Limit Switch quantity
M/R High Limit Switch for Laars Heating Systems

Laars Heating Systems

SKU: E2324200
$157.91
MSRP: $181.60
You save 15%
Laars Heating Systems E2324200 M/R High Limit Switch quantity
High Limit Switch, Manual Reset for Laars Heating Systems

Laars Heating Systems

SKU: E2304800
$114.64
MSRP: $131.84
You save 15%
Laars Heating Systems E2304800 High Limit Switch, M/R quantity
250°F Manual Reset Limit Switch, OEM Replacement Part

Laars Heating Systems

SKU: E2103200
$30.03
MSRP: $34.53
You save 15%
Laars Heating Systems E2103200 250°F Manual Reset Limit Switch quantity
200-230°F Auto-Reset High Limit Switch, SKU 2400-550

Laars Heating Systems

SKU: 2400-550
$127.95
MSRP: $147.14
You save 15%
Laars Heating Systems 2400-550 200-230°F AUTO Limit Switch quantity
140-180°F Auto-Reset Limit Switch, Replacement Part

Laars Heating Systems

SKU: 2400-058
$73.19
MSRP: $84.17
You save 15%
Laars Heating Systems 2400-058 140-180F Auto-Reset Limit Switch quantity
245°F Cutout Auto-Reset Limit Switch

Laars Heating Systems

SKU: 2400-055
$188.19
MSRP: $216.42
You save 15%
Laars Heating Systems 2400-055 245F CO AUTO Limit Switch quantity
125-3000# NEMA 4X SPDT Pressure Switch

United Electric

SKU: H100-612
$386.61
MSRP: $444.60
You save 15%
United Electric H100-612 125-3000# NEMA 4X SPDT Pressure Switch quantity
Replacement High Limit & Low Water Cut-Off (LWCO) Kit

Utica-Dunkirk

SKU: 550002586
$255.91
MSRP: $294.30
You save 15%
Utica-Dunkirk 550002586 Replacement High Limit & LWCO Kit quantity
L150-20F Limit Switch, OEM Replacement Part

Utica-Dunkirk

SKU: 29197
$18.00
MSRP: $20.70
You save 15%
Utica-Dunkirk 29197 L150-20F Limit Switch quantity
LWCO High Limit Temperature Control for Utica-Dunkirk Boilers

Utica-Dunkirk

SKU: 240011833
$138.20
MSRP: $158.93
You save 15%
Utica-Dunkirk 240011833 LWCO High Limit Temperature Control quantity
HTEX Surface Temperature Switch for Boiler Safety Control

Utica-Dunkirk

SKU: 240009508
$28.80
MSRP: $33.12
You save 15%
Utica-Dunkirk 240009508 HTEX Surface Temperature Switch quantity
High Limit Control for Utica-Dunkirk Boilers

Utica-Dunkirk

SKU: 240009128
$197.44
MSRP: $227.06
You save 15%
Utica-Dunkirk 240009128 High Limit Control quantity
230°F Manual Reset SPST Rollout Limit Switch

Supco

SKU: SRL230
$9.74
MSRP: $11.20
You save 15%
Supco SRL230 230°F Manual Reset SPST Rollout Limit Switch quantity
135°F Fixed Cut-Out Manual Reset Bimetal Rollout Limit Switch

Supco

SKU: SRL135
$9.74
MSRP: $11.20
You save 15%
Supco SRL135 135°F Fixed Cut-Out Manual Reset Bimetal Rollout Limit Switch quantity
1/2″ Bimetal Rollout Limit Switch, 300°F Cut-out, Auto Reset

Supco

SKU: SLS300
$8.26
MSRP: $9.50
You save 15%
Supco SLS300 1/2" Bimetal Rollout Limit Switch, 300°F Cut-out, Auto Reset quantity
1/2″ Bimetal Rollout Limit Switch, 170°F Cut-out, Auto Reset

Supco

SKU: SLS170
$8.88
MSRP: $10.21
You save 15%
Supco SLS170 1/2" Bimetal Rollout Limit Switch, 170°F Cut-out, Auto Reset quantity
Snap Disc Manual Reset Limit Switch with Adapter Flange Plate

Supco

SKU: SHM210
$14.54
MSRP: $16.72
You save 15%
Supco SHM210 Snap Disc Manual Reset Limit Switch with Adapter Flange Plate quantity
200°F Manual Reset Snap Disc Limit Switch with Adapter Flange

Supco

SKU: SHM200
$14.54
MSRP: $16.72
You save 15%
Supco SHM200 200°F Manual Reset Snap Disc Limit Switch with Adapter Flange quantity
Snap Disc Manual Reset Limit Switch with Adapter Flange, 160°F

Supco

SKU: SHM160
$14.54
MSRP: $16.72
You save 15%
Supco SHM160 Snap Disc Manual Reset Limit Switch with Adapter Flange Plate, 160°F quantity
Board Mounted General Purpose Limit Switch, SPST NC, Auto Reset

Supco

SKU: SHL524
$17.94
MSRP: $20.63
You save 15%
Supco SHL524 Board Mounted General Purpose Limit Switch, SPST NC, Auto Reset quantity
Board Mounted General Purpose Limit Switch, SPST NC, Auto Reset

Supco

SKU: SHL519
$18.94
MSRP: $21.78
You save 15%
Supco SHL519 Board Mounted General Purpose Limit Switch, SPST NC, Auto Reset quantity
Board Mounted General Purpose Limit Switch, SPST NC, Auto Reset

Supco

SKU: SHL517
$16.81
MSRP: $19.33
You save 15%
Supco SHL517 Board Mounted General Purpose Limit Switch, SPST NC, Auto Reset quantity
Board Mounted General Purpose Limit Switch, 210°F Open / 170°F Close

Supco

SKU: SHL516
$16.81
MSRP: $19.33
You save 15%
Supco SHL516 Board Mounted General Purpose Limit Switch, 210°F Open / 170°F Close quantity
Board Mounted General Purpose Limit Switch, Auto Reset

Supco

SKU: SHL512
$30.30
MSRP: $34.85
You save 15%
Supco SHL512 Board Mounted General Purpose Limit Switch, Auto Reset quantity
Board Mounted General Purpose Limit Switch, 160°F Open / 140°F Close

Supco

SKU: SHL511
$16.81
MSRP: $19.33
You save 15%
Supco SHL511 Board Mounted General Purpose Limit Switch, 160°F Open / 140°F Close quantity
Board Mounted General Purpose Temperature Limit Switch

Supco

SKU: SHL510
$16.81
MSRP: $19.33
You save 15%
Supco SHL510 Board Mounted General Purpose Temperature Limit Switch quantity
Board Mounted General Purpose Limit Switch, 240°F Open / 210°F Close

Supco

SKU: SHL509
$16.81
MSRP: $19.33
You save 15%
Supco SHL509 Board Mounted General Purpose Limit Switch, 240°F Open / 210°F Close quantity
Board Mounted General Purpose Limit Switch, 140°F Open / 110°F Close

Supco

SKU: SHL507
$16.81
MSRP: $19.33
You save 15%
Supco SHL507 Board Mounted General Purpose Limit Switch, 140°F Open / 110°F Close quantity
Board Mounted General Purpose Limit Switch, 240°F/200°F Auto Reset

Supco

SKU: SHL504
$23.64
MSRP: $27.19
You save 15%
Supco SHL504 Board Mounted General Purpose Limit Switch, 240°F Open/200°F Close quantity
Board Mounted Limit Switch, 190°F Open / 150°F Close, Auto Reset

Supco

SKU: SHL503
$23.64
MSRP: $27.19
You save 15%
Supco SHL503 Board Mounted General Purpose Limit Switch, 190°F Open / 150°F Close quantity
Board Mounted General Purpose Limit Switch, 180°F/150°F

Supco

SKU: SHL502
$23.64
MSRP: $27.19
You save 15%
Supco SHL502 Board Mounted General Purpose Limit Switch, 180°F Open / 150°F Close quantity
Snap Disc Auto Reset Limit Switch with Adapter Flange Plate

Supco

SKU: SHL250
$8.69
MSRP: $9.99
You save 15%
Supco SHL250 Snap Disc Auto Reset Limit Switch with Adapter Flange Plate quantity
Snap Disc Auto Reset Limit Switch with Adapter Flange Plate

Supco

SKU: SHL200
$8.69
MSRP: $9.99
You save 15%
Supco SHL200 Snap Disc Auto Reset Limit Switch with Adapter Flange Plate quantity
Snap Disc Auto Reset Limit Switch with Adapter Flange Plate

Supco

SKU: SHL180
$8.69
MSRP: $9.99
You save 15%
Supco SHL180 Snap Disc Auto Reset Limit Switch with Adapter Flange Plate quantity
Snap Disc Auto Reset Limit Switch with Adapter Flange Plate

Supco

SKU: SHL170
$8.69
MSRP: $9.99
You save 15%
Supco SHL170 Snap Disc Auto Reset Limit Switch with Adapter Flange Plate quantity
Snap Disc Auto Reset Fan Switch, 140°F Cut-In, 120°F Cut-Out

Supco

SKU: SHF140
$8.26
MSRP: $9.50
You save 15%
Supco SHF140 Snap Disc Auto Reset Fan Switch, 140°F Cut-In, 120°F Cut-Out quantity
Snap Disc Auto Reset Fan Switch, 110°F Cut-In, 90°F Cut-Out, Deep Cup

Supco

SKU: SHF110DC
$11.18
MSRP: $12.86
You save 15%
Supco SHF110DC Snap Disc Auto Reset Fan Switch, 110°F Cut-In, Deep Cup quantity
Thermal Cutoff Kit – Overtemperature Protection

Supco

SKU: SET184
$9.40
MSRP: $10.81
You save 15%
Supco SET184 Thermal Cutoff Kit quantity
SPDT Snap Disc Auto Reset Limit Switch, 185°F Cut-in / 225°F Cut-out

Supco

SKU: LD225
$10.99
MSRP: $12.64
You save 15%
Supco LD225 SPDT Snap Disc Auto Reset Limit Switch, 185°F Cut-in / 225°F Cut-out quantity
SPDT Snap Disc Auto Reset Limit Switch, 160°F/200°F

Supco

SKU: LD200
$9.89
MSRP: $11.37
You save 15%
Supco LD200 SPDT Snap Disc Auto Reset Limit Switch 160°F/200°F quantity
SPDT Snap Disc Auto Reset Limit Switch, 105°F/120°F

Supco

SKU: LD120
$10.23
MSRP: $11.76
You save 15%
Supco LD120 SPDT Snap Disc Auto Reset Limit Switch, 105°F/120°F quantity