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$86.63

SJE-Rhombus Float Switch: Wide-Angle, Normally Open (Pump Down), 120V AC, 13 A, Piggyback Plug, PVC Model: 15PMD1WP- QF

Grainger

$86.63

SJE-Rhombus Float Switch: Wide-Angle, Normally Open (Pump Down), 120V AC, 13 A, Piggyback Plug, PVC Model: 15PMD1WP- QF

Grainger

$25.59

Grote 12V 2 To 5 PSI Normally Open Air System Pressure Switch | Stop Lite Switch | 82-2159

FleetPride

$25.59

Grote 12V 2 To 5 PSI Normally Open Air System Pressure Switch | Stop Lite Switch | 82-2159

FleetPride

$106.04

DAYTON Float Switch: Wide-Angle, Normally Open (Pump Down), 115V AC, 15 A, Piggyback Plug, Pump Duty Model: 6PNV3

Grainger

$106.04

DAYTON Float Switch: Wide-Angle, Normally Open (Pump Down), 115V AC, 15 A, Piggyback Plug, Pump Duty Model: 6PNV3

Grainger

$78.65

Little Giant Float Switch: Normally Open (Pump Down), 115V AC, 10 A, Piggyback Plug, Sensor, Nylon Model: 599009

Grainger

$78.65

Little Giant Float Switch: Normally Open (Pump Down), 115V AC, 10 A, Piggyback Plug, Sensor, Nylon Model: 599009

Grainger

$69.82

DAYTON Float Switch: Vertical, Normally Open (Pump Down), 115V AC, 10 A, Piggyback Plug, Top Stop Model: 10A169

Grainger

$69.82

DAYTON Float Switch: Vertical, Normally Open (Pump Down), 115V AC, 10 A, Piggyback Plug, Top Stop Model: 10A169

Grainger

$98.60

DAYTON Float Switch: Normally Open (Pump Down), 115V AC, 20 ft Cord Lg, 45° Below Horizontal, ABS Model: 3BY81

Grainger

$98.60

DAYTON Float Switch: Normally Open (Pump Down), 115V AC, 20 ft Cord Lg, 45° Below Horizontal, ABS Model: 3BY81

Grainger

$190.72

Little Giant Float Switch: Wide-Angle, Normally Open (Pump Down), 115V AC, 13 A, Piggyback Plug, PVC Model: 513632

Grainger

$190.72

Little Giant Float Switch: Wide-Angle, Normally Open (Pump Down), 115V AC, 13 A, Piggyback Plug, PVC Model: 513632

Grainger

$148.64

Little Giant Float Switch: Normally Open (Pump Down), 115V AC, 16 A, Piggyback Plug, Sensor Model: 513636

Grainger

$148.64

Little Giant Float Switch: Normally Open (Pump Down), 115V AC, 16 A, Piggyback Plug, Sensor Model: 513636

Grainger

$30.99

Lennox 15M20 Pressure Switch - Spst - Normally Open - -0.10" Wc Pf - Switches & Buttons

Parts Town

$30.99

Lennox 15M20 Pressure Switch - Spst - Normally Open - -0.10" Wc Pf - Switches & Buttons

Parts Town

$104.99

Little Giant Float Switch: Normally Open (Pump Down), 115V AC, 10 A, Piggyback Plug, Sensor, Nylon Model: 599014

Grainger

$104.99

Little Giant Float Switch: Normally Open (Pump Down), 115V AC, 10 A, Piggyback Plug, Sensor, Nylon Model: 599014

Grainger

$70.00

DAYTON Float Switch: Vertical, Normally Open (Pump Down), 115V AC, 10 A, Piggyback Plug, Top Stop Model: 10A170

Grainger

$70.00

DAYTON Float Switch: Vertical, Normally Open (Pump Down), 115V AC, 10 A, Piggyback Plug, Top Stop Model: 10A170

Grainger

$3,770.00

SP6T Electromechanical Relay Normally Open Switch, DC To 26.5 Ghz, 20W, 28V, SMA

Pasternack

$3,770.00

SP6T Electromechanical Relay Normally Open Switch, DC To 26.5 Ghz, 20W, 28V, SMA

Pasternack

$2,420.00

SP4T Electromechanical Relay Normally Open Switch, DC To 18 Ghz, 12V, N, 1m Lifecycles

Pasternack

$2,420.00

SP4T Electromechanical Relay Normally Open Switch, DC To 18 Ghz, 12V, N, 1m Lifecycles

Pasternack

$94.36

SJE-Rhombus Float Switch: Wide-Angle, Normally Open (Pump Down), 250V AC, 13 A, Piggyback Plug Model: 20HTMD2WP

Grainger

$94.36

SJE-Rhombus Float Switch: Wide-Angle, Normally Open (Pump Down), 250V AC, 13 A, Piggyback Plug Model: 20HTMD2WP

Grainger

$95.03

Madison Float Switch: Wide-Angle, Normally Open Or Normally Closed (Pump Down Or Up), 250V AC, 16 A Model: M4549

Grainger

$95.03

Madison Float Switch: Wide-Angle, Normally Open Or Normally Closed (Pump Down Or Up), 250V AC, 16 A Model: M4549

Grainger

$129.36

SJE-Rhombus Float Switch: Wide-Angle, Normally Open (Pump Down), 120V AC, 15 A, Piggyback Plug, PVC Model: 20PMPD1WP

Grainger

$129.36

SJE-Rhombus Float Switch: Wide-Angle, Normally Open (Pump Down), 120V AC, 15 A, Piggyback Plug, PVC Model: 20PMPD1WP

Grainger

$83.28

SJE-Rhombus Float Switch: Narrow-Angle, Normally Open (Pump Down), 120/230V AC, 5 A, 2-Wire, 15MWENO Model: 15MWENO

Grainger

$83.28

SJE-Rhombus Float Switch: Narrow-Angle, Normally Open (Pump Down), 120/230V AC, 5 A, 2-Wire, 15MWENO Model: 15MWENO

Grainger

$90.54

SJE-Rhombus Float Switch: Wide-Angle, Normally Open (Pump Down), 120V AC, 13 A, Piggyback Plug, PVC Model: 10PMD1WP

Grainger

$90.54

SJE-Rhombus Float Switch: Wide-Angle, Normally Open (Pump Down), 120V AC, 13 A, Piggyback Plug, PVC Model: 10PMD1WP

Grainger

$170.63

SJE-Rhombus Dual Float Switch: Wide-Angle, Normally Open (Pump Down), 230V AC, 13 A, 3-Wire Model: 20DFMMD2WOP

Grainger

$170.63

SJE-Rhombus Dual Float Switch: Wide-Angle, Normally Open (Pump Down), 230V AC, 13 A, 3-Wire Model: 20DFMMD2WOP

Grainger

$2,184.00

SP4T Electromechanical Relay Normally Open Switch, DC To 12.4 Ghz, 50W, 28V, TTL, N

Pasternack

$2,184.00

SP4T Electromechanical Relay Normally Open Switch, DC To 12.4 Ghz, 50W, 28V, TTL, N

Pasternack

$91.53

DAYTON Float Switch: Normally Open (Pump Down), 115/230V AC, 20 ft Cord Lg, 45° Above Horizontal Model: 10A174

Grainger

$91.53

DAYTON Float Switch: Normally Open (Pump Down), 115/230V AC, 20 ft Cord Lg, 45° Above Horizontal Model: 10A174

Grainger

$55.49

Carrier Hvac Hk06mb021 Pressure Switch - Normally Open - Switches & Buttons

Parts Town

$55.49

Carrier Hvac Hk06mb021 Pressure Switch - Normally Open - Switches & Buttons

Parts Town

$2,310.00

SP6T Electromechanical Relay Normally Open Switch, DC To 12.4 Ghz, 160W, 12V, N

Pasternack

$2,310.00

SP6T Electromechanical Relay Normally Open Switch, DC To 12.4 Ghz, 160W, 12V, N

Pasternack

$9.99

Switching Relay: 1 Relay, DPST, Normally Open, 120V AC Coil Model: 6ACH6

Grainger

$9.99

Switching Relay: 1 Relay, DPST, Normally Open, 120V AC Coil Model: 6ACH6

Grainger

$74.50

SJE-Rhombus Float Switch: Narrow-Angle, Normally Open (Pump Down), 125/250V AC, 5 A, 2-Wire Model: 20SGMWENO

Grainger

$74.50

SJE-Rhombus Float Switch: Narrow-Angle, Normally Open (Pump Down), 125/250V AC, 5 A, 2-Wire Model: 20SGMWENO

Grainger

$975.00

SP6T Electromechanical Relay Normally Open Switch, DC To 18 Ghz, Up To 90W, 24V, TTL, SMA

Pasternack

$975.00

SP6T Electromechanical Relay Normally Open Switch, DC To 18 Ghz, Up To 90W, 24V, TTL, SMA

Pasternack

$99.99

Little Giant Float Switch: Vertical, Normally Open (Pump Down), 115V AC, 13 A, Piggyback Plug, PVC Model: 599261

Grainger

$99.99

Little Giant Float Switch: Vertical, Normally Open (Pump Down), 115V AC, 13 A, Piggyback Plug, PVC Model: 599261

Grainger

$3,690.00

SP8T Electromechanical Relay Normally Open Switch, DC To 18 Ghz, Up To 90W, 12V, SMA

Pasternack

$3,690.00

SP8T Electromechanical Relay Normally Open Switch, DC To 18 Ghz, Up To 90W, 12V, SMA

Pasternack

$182.79

SJE-Rhombus Float Switch: Narrow-Angle, Normally Open Or Normally Closed (Pump Down Or Up), 125V AC Model: 100MGMSPDT

Grainger

$182.79

SJE-Rhombus Float Switch: Narrow-Angle, Normally Open Or Normally Closed (Pump Down Or Up), 125V AC Model: 100MGMSPDT

Grainger

$63.29

SJE-Rhombus Float Switch: Narrow-Angle, Normally Open (Pump Down), 125/250V AC, 5 A, 2-Wire Model: 20SGMPCNO

Grainger

$63.29

SJE-Rhombus Float Switch: Narrow-Angle, Normally Open (Pump Down), 125/250V AC, 5 A, 2-Wire Model: 20SGMPCNO

Grainger

$2,860.00

SP4T Electromechanical Relay Normally Open Switch, DC To 12.4 Ghz, 160W, 28V, N

Pasternack

$2,860.00

SP4T Electromechanical Relay Normally Open Switch, DC To 12.4 Ghz, 160W, 28V, N

Pasternack

$180.49

Lennox 51M87 Pressure Switch - Spst - 1.60" Wc - Normally Open - Switches & Buttons

Parts Town

$180.49

Lennox 51M87 Pressure Switch - Spst - 1.60" Wc - Normally Open - Switches & Buttons

Parts Town

$9.99

Switching Relay: 1 Relay, DPDT, Normally Closed/Normally Open, 120V AC Coil Model: 6AZU0

Grainger

$9.99

Switching Relay: 1 Relay, DPDT, Normally Closed/Normally Open, 120V AC Coil Model: 6AZU0

Grainger

$9.34

Switching Relay: 1 Relay, SPDT, Normally Closed/Normally Open, 120V AC Coil Model: 6AZU5

Grainger

$9.34

Switching Relay: 1 Relay, SPDT, Normally Closed/Normally Open, 120V AC Coil Model: 6AZU5

Grainger

$64.31

Madison Float Switch: Wide-Angle, Normally Open Or Normally Closed (Pump Down Or Up), 250V AC, 16 A Model: M4548

Grainger

$64.31

Madison Float Switch: Wide-Angle, Normally Open Or Normally Closed (Pump Down Or Up), 250V AC, 16 A Model: M4548

Grainger

$6.09

Tramec 12V 60 To 70 PSI Normally Open Air System Pressure Switch | Air Pressure Switch, Contact Open At Ris | 422705

FleetPride

$6.09

Tramec 12V 60 To 70 PSI Normally Open Air System Pressure Switch | Air Pressure Switch, Contact Open At Ris | 422705

FleetPride

Normally Open and Normally Closed Switches - MCG Industrial

1:02

YouTubeTAMCO

Normally Open and Normally Closed Switches - MCG Industrial

What Normally Open and Normally Closed Switches are and how they work? Normally Open and Normally Closed electrical contacts make up electrical switches, relays, circuit breakers, and most any other electrical component that switches something on and off. A “normally open” is a contact that does not flow current in its normal state ...

21.5K viewsJun 22, 2020

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