Description

Masoneilan 496-557 Rotary Switches

Product name : Masoneilan 496-557 Electric Rotary Switches ( 496 Series)

Condition: Brand New

Origin: GE ( USA)

Masoneilan 496-557 Rotary Switches are configurable as electro-mechanical switches, proximity switches, or opto-electronic position transmitters.

Key Applications :

Steam Turbine Generator, Condenser, Cooling Tower, Reactor Building, Turbine Building, Reactor Facility Grounds & BOP, Steam Turbine, Gas Turbine, Heat Recovery Steam Generator,  Balance Of Plant, Distillation, Hydroprocessing  Reforming, Cracking, Secondary, Blending, Quenching & Fractioning, Charge Gas Compression, Seperation, Pipeline Integrity, Operations, Dehydration, Refrigeration, Liquifaction, Loading/Shipping, Regasification, Auxillary, Dehydration/Treating, Compression.

Material:

Body and cover: Aluminum with anti-corrosion treatment, epoxy or polyurethane painted.
Option: 316L type stainless steel with passivation.
Shaft: stainless steel.
0-ring seals: Buna® N.
No part made of copper or copper bearing alloy is exposed to the atmosphere.
Stroke
Maximum rotary travel: 90°
Linear travel: 25 mm to 102 mm (1” – 4”) through a linkage.
Rotary or linear travel to be specified when ordering separate instruments.
Ratings
Temperature range: upon the type of switch and the approval used.
Enclosure Rating: IP 66 / IP 67 according to EN 60529..more

Electrical Data
Detector: By flux variation actuating a power relay located outside the hazardous area, by means of an oscillator and
an amplifier.
One or two detectors can be used.
Ratings: Determined by the power relay selected, not supplied with the device.
Connections: 3/4’’ NPT
Other connection types allowed using adaptors or reducers.
In case of separate cables requested by additional functions, a 3 outputs cable output type Y237 is available.
Performance
Differential gap (percent of full scale):
Rotary valves: 1.5 percent
Linear motion valves:
Travel Differential gap
25 mm (1”) 3 percent
50 mm (2”) 1.5 percent
100 mm (4”) 1.5 percent
Repeatability: 0.3 percent

For complete datasheet: TSP Controls – 496-557- Datasheet2

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