Series 15 · ERECTA SWITCH Side Mount

Side Mount Level Switches — No Stem Required

The 15-650 installs through the tank wall and senses liquid level at the mounting point. Horizontal-pivot magnetic reed float switch — fits horizontal tanks, drums, totes, and tight-clearance enclosures where top-entry is not an option.

1/2 NPT · 1/4 NPT · Bulkhead PP · Acetal · Kynar PVDF No Stem · No Nipple RoHS Compliant Made in USA

How side mount differs from Series 10: Series 10 switches hang vertically on an extended stem — the float travels up and down on the nipple. Series 15 switches mount horizontally through the tank wall — the float pivots on a horizontal axis and senses level at exactly where the switch is installed. No stem, no nipple, no minimum tank depth required.

Products

Series 15 Product Line

Four configurations built on the 15-650 base switch — choose the wiring termination and mounting style that fits your installation.

15-650

Side Mount Liquid Level Switch

The base side mount switch. Lead wire termination. Three mounting options: 1/2 NPT outside-in, 1/4 NPT inside-out, or 0.54″ bulkhead with jam nut.

PP · AC · KRLead Wire3 Mount Options

As low as $17.63

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15-650-R

Side Mount Wire Receptacle Switch Set

15-650 with enclosed wire receptacle housing. 1.66″ dia housing with 1/2″ conduit knockout. 1pk and 10pk available.

PP · AC · KRWire Receptacle1pk + 10pk

As low as $26.97 / 1pk

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15-650-LP

Side Mount Low Profile Receptacle Switch Set

Rain-tight low profile receptacle with 360° nipple rotation for wire exit angle positioning. Installs from outside.

PP · AC · KRLow Profile360° Rotation

Converts the 15-650's 1/2 NPS shank to 3/4 NPT. O-ring sealed. For tanks with 3/4 NPT bosses. Also compatible with Series 10 and Series 20 shanks.

PP · AC · KR1/2 NPS → 3/4 NPTO-Ring Seal

As low as $1.91

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Installation

Three Ways to Install a 15-650

The same base switch handles three mounting configurations — no separate SKU required.

Outside → In on 1/2 NPT

Thread the 15-650 into a 1/2 NPT tank boss from outside the tank wall. The float and sensing section extend into the tank. The most common installation method. No internal access required.

All 15-650 variants

Inside → Out on 1/4 NPT

Pass the switch through the wall from inside the tank, thread the 1/4 NPT section into a 1/4 NPT fitting from inside-out. Useful when outside wall space is constrained or when the fitting is recessed.

15-650 base switch only

Bulkhead through 0.54″ hole

Pass the switch shank through a 0.54″ diameter hole in the tank wall and tighten the jam nut from outside. No tapping required — ideal for plastic tanks, drums, and sheet metal enclosures.

15-650 base switch only

Need Help Selecting the Right Configuration?

Tell us your tank geometry, thread size, and fluid chemistry — we'll confirm the right 15-650 variant and wiring termination for your application.

Request a Quote Free Evaluation Sample