DiversiTech Definite Purpose Contactor C230B

The DiversiTech C230B is a two pole definite purpose contactor rated 30 amps with a 120 volt coil.

Contactor coils fail in two distinct ways, and distinguishing them is useful diagnostically.

An open coil produces no action at all: the contactor does not pull in, and a resistance measurement across the coil terminals reads infinite. This is generally the result of age, overheating, or the coil having been supplied at a voltage above its rating.

A coil that pulls in but chatters, buzzes, or drops out under load is a different fault, and the coil is usually not the cause. Chattering indicates the coil is not receiving enough voltage to hold the armature firmly closed, which points to a weak transformer, a marginal control circuit, loose control connections, or in a 120 volt circuit a voltage drop under load. A persistent buzz with the contactor closed more often indicates dirt or corrosion on the mating pole faces, or a failed shading coil.

Replacing a contactor for chattering without finding the underlying supply problem produces a repeat call.

The 120 volt coil suits line voltage control circuits found in commercial refrigeration and packaged equipment.

Applications include light commercial HVAC and refrigeration.

Brand

DiversiTech

SKU

C230B

Category

Contactors

Weight

0.6 lbs

Dimensions

3.20" x 2.00" x 2.40"

Price

$17.00

Availability

In stock (6 available)

Rating

4.2 / 5.0