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Stainless steel liquid level switch with 1/2" x 1/4" NPT connections, 5-inch stem and float

Madison

Madison Liquid Level Switch 1/2" x 1/4" NPT Selectable SS

SKU CH-G6ZQ-WY4FE

A selectable stainless-steel liquid-level switch with 1/2" x 1/4" NPT connections, 300 psi rating and 392 °F maximum temperature

  • Size or dimensions1/2 in × 1/4 in NPT
  • Product typeLight Switch
  • Selectable switch function adapts to open or closed tank logic
  • Stainless steel float and stem resist corrosion in harsh fluids
  • Rated for 300 psi and 392 °F max operating temperature
  • Compact 5 in overall length fits tight side-mount installations
  • SPST contact handles 0.28 A at 240 V for reliable signalling

Alternator Liquid Level Switch

The Madison switch monitors coolant or oil level in alternator systems using a side-mounted stainless-steel float. A selectable function lets the installer choose normally-open or normally-closed operation for the SPST contact. Rated for 240 V and 0.28 A, it suits low-voltage control circuits in industrial and heavy-duty automotive applications.

1/2 x 1/4 NPT Tank Connection

The 1/2 in x 1/4 in NPT fitting threads directly into a matching tank port without adapters. A 1/2 in conduit entry protects the wiring run. The 5 in overall length and 0.75 in float length keep the profile compact for tight engine compartments. Stainless-steel body, stem and float resist corrosion from coolant additives and oil.

Sustained High-Temperature Operation

The assembly withstands continuous exposure up to 392 degrees F and 300 psi without seal degradation. The 30 VA contact rating remains stable during prolonged duty cycles, avoiding the drift seen in snap-action switches that heat internally. Stainless construction eliminates plastic fatigue that can cause false trips after thousands of thermal cycles.

How it compares

Measured against everything we stock in Electrical Switches & Dimmers, at today’s prices. Recalculated every night.

Price $102.99
Pricier than about 76% of the 791 comparable items (median $39.99).

Specifications

Product
Brand nameMadison
Product typeLight Switch
Size & build
Size or dimensions1/2 in × 1/4 in NPT

Questions about this item

At what temperature does the switch reach its operating limit?

The stainless-steel switch is rated for a maximum operating temperature of 392 Degrees F.

How much power does the switch draw when it runs continuously?

With a 30 VA rating and 0.28 A maximum current at 240 V, power consumption stays very low during all-day operation.

What size NPT fitting must the tank already have for this switch to install?

The tank needs a 1/2 in x 1/4 in NPT connection to match the switch's side-mount conduit size.

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