Magnetic Level Switches

The 528/529 magnetic switches provide switching signals at selected levels on compatible magnetic level gauges. They can add high- or low-level alarms; mounting, magnetic compatibility, contact load and thermal isolation must be checked.

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Model: 528 Series / 529 Series
Category: Level
Revision: Updated 2026-09-24

SPECIFICATIONS

Technical specifications

Parameter	Specification	Unit
Compatible instruments	562/563/564 magnetic level gauges and 640/643 flow meters, subject to mounting compatibility
Electrical connection	528: terminal housing; 529: flying leads
Contact options	SPST or SPDT; latching or non-latching, depending on order code
528 maximum switching ratings	80 W, 1.0 A, 220 V AC/DC; all limits apply simultaneously
529 maximum switching ratings	70 W, 0.7 A, 220 V AC/DC; all limits apply simultaneously
Switching differential	528: 12 mm; 529: 6 mm

Application and selection notes

A switch contact is not a continuous 4–20 mA level signal; continuous measurement requires a compatible transmitter.
For high-temperature service, select thermal isolation based on the actual temperature at the switch.
Confirm protection components and supplied specifications for inductive loads, PLC inputs and hazardous areas.

Verify specifications and options against the documents for your model. Select a technical sheet to enlarge it.