ERECTA SWITCH® by Compac Engineering
Series 20 · ERECTA SWITCH®

20-613 — Float Switch Set — Kynar PVDF

2" NPT top-mounted receptacle switch set. Low-profile design, outside-in install, no internal access required. Bestact™ inductive switching. Kynar PVDF construction handles aggressive acids, halogens, oxidizers, and ultra-high-purity process fluids.

20-613-WO-KR Float Switch Set

Configure & Order

Material
KR — Kynar PVDF
Switch Mode
Set Components
  • • 20-611 Switch
  • • 20-700-AS Adapter/Seal Set
  • • 20-700-SP Spacer
  • • 20-700-RI Receptacle
SKU: 20-613-WO-KR
Qty
In stock · Ships Wednesday · Made in Paradise, CA · No minimum order
Also Available
Net Price — per unit (Wet Open (WO))
QuantityPrice
1–9$373.02
10–24$320.07
25–49$257.58
50–99$205.87
100+$165.07
As low as $165.07 · OEM pricing quoted upon request.

Product Description

The 20-613-WO-KR is the wet open 2" NPT receptacle switch set in Kynar PVDF — for aggressive chemical service in large-port tanks requiring PVDF wetted parts with Bestact™ inductive switching.

SpecificationValue
Switch ElementYaskawa Bestact™ hermetically sealed
Contact Rating120 VA at 240 VAC Inductive
Mount2" NPT, outside-in, no internal access required
Float Diameter2.0 in (50.9 mm)
Overall Length4.63 in (117.6 mm)
Pressure20 PSI @ 20°C; derate to zero @ 90°C
Temperature Max90°C
ApprovalsClass 1 Div 2, Groups A, B, C, D
ComplianceRoHS
MaterialKynar PVDF

What Makes the 20-613 the Right Choice

Outside-in installation
Installs from outside through 2" NPT port. No internal tank access required. 20-700-AS adapter with integral seal bridges the port to the receptacle.
WO / DO field-selectable mode
Wet Open (WO) or Dry Open (DO) switching action — set by float orientation on the stem. Single switch set covers fill, drain, alarm, and pump control applications.
Low-profile design
Assembly height only 4.63" (117.6 mm) above the tank wall. Compact profile for confined spaces.
ERECTA SWITCH modular architecture
Every component is independently field-replaceable. Snap-and-screw modular design enables part-level replacement in minutes without factory return.
Kynar PVDF construction
Handles aggressive acids, halogens, oxidizers, and ultra-high-purity process fluids. Required for semiconductor, chemical processing, and harsh chemical environments.
RoHS compliant · Made in USA
Manufactured in Paradise, California. RoHS compliant throughout. No minimum order.

Where the 20-613-WO-KR Is Specified

Frequently Asked Questions

Common Questions About This Product

What is the difference between a float level switch and a liquid level sensor?

A float level switch like the 20-613 is a point-level device: a float rides the liquid and actuates a magnetic reed switch at a set height, giving a simple on/off signal — no power, no firmware, no calibration. "Sensors" usually means continuous measurement (ultrasonic, radar, capacitive). ERECTA SWITCH targets reliable discrete-point control.

What are the typical applications for the 20-613?

The 20-613 is used for pump start/stop control, high-level overflow protection, low-level dry-run protection, and tank or reservoir level alarms in OEM equipment. The modular ERECTA SWITCH system is built into laundry, HVAC, water-treatment, hydraulic, and chemical-handling machinery.

What liquid chemistries is the 20-613 compatible with?

Choose the material to match the media: Polypropylene (PP) for general aqueous, acids, and bases; Acetal (AC/Delrin) for solvents, fuels, and hydrocarbons; Kynar PVDF (KR) for aggressive or harsh chemicals. Every ERECTA SWITCH model is offered in all three materials.

Is the 20-613 a point-level or continuous-level device?

The 20-613 is point-level — it provides a discrete on/off signal at a set height. For multiple switch points, use a multi-level extended-stem set (2-, 3-, or 4-level) instead of a single continuous sensor.

What mounting options are available for the 20-613?

ERECTA SWITCH offers vertical top-mount, bulkhead, and extended-stem configurations, plus side-mounted single-point models. The mount style is part of the model number — select the configuration that matches your tank geometry.

How is the actuation level set on the 20-613, and how accurate is it?

Point detection is repeatable and mechanical. The trip height on the 20-613 is set by the 10-715 Precision Nipple, ordered separately in 1-inch increments (1″–70″), so you place the switch point exactly where the application needs it.

Questions About This Product?

Our engineering team can verify compatibility with your application and chemistry before you order.