DiversiTech Contactor 3P 50AM TMX350B2

The DiversiTech TMX350B2 is a three pole contactor rated 50 amps with a 120 volt coil.

The environment inside a commercial control panel affects contactor life in ways that are straightforward to manage but frequently neglected.

Panel temperature is the main factor. Contactor coils and contacts are rated for operation within an ambient temperature range, and a panel in direct sun, adjacent to hot equipment, or containing several heat producing devices in a sealed enclosure can exceed it. Elevated ambient temperature shortens coil life and reduces the current the contacts can carry without overheating. Derating may be required where panel temperatures are high.

Ventilation, shading, and where necessary panel cooling address it. Simply relocating a panel out of direct sun can make a substantial difference on rooftop equipment.

Dust and contamination are the secondary factor. Panels in industrial, agricultural, or dusty commercial environments accumulate material on contactor mechanisms and pole faces, producing sticking armatures and poor contact. Sealed enclosures with appropriate ingress protection address this where the environment warrants it.

Both are worth assessing when a contactor fails prematurely and no electrical cause is apparent.

At 50 amps in three poles this suits substantial commercial three phase loads with line voltage control.

Brand

DiversiTech

SKU

TMX350B2

Category

Contactors

Weight

1.7 lbs

Dimensions

3.80" x 2.70" x 3.60"

Price

$105.00

Availability

In stock (4 available)

Rating

0 / 5.0