This product brochure provides general information on our standard product line of

relays. Complete product information can be obtained by visiting our website at

www.deltrol–controls.com. The following is a description of just some of the relay

features that make up the Deltrol Dierence.

All Deltrol Controls relay frames incorporate a small but important feature, the frame

gusset. This small buttress is created by an extra stamping process during frame

fabrication. This gusset supplies rigidity to the frame, which in turn maintains the

alignment of the contact panel assembly and the moving armature. This assures

long–life and resistance to changes during shipment and handling.

Studies have shown that there is a substantial reduction in the copper wire diam-

eter when soldering takes place. While this is not a problem with heavier wire, ner

gauge wires are seriously compromised. Over time the stresses of thermocycling can

cause the wire to break, leaving an open circuit. That’s why Deltrol Controls skeins

all ne gauge wire when constructing its coil. This process triples the thickness of

the wire gauge at the ends where it is soldered to the terminal, allowing it to easily

handle the stresses of heating and cooling.

Deltrol Controls utilized the latest improvements in contact metallurgy. An example

is our Series 270/275, which now has a 35 amp rating in a DPDT conguration – the

highest in the industry for this package.

Deltrol Controls pioneered the plastic encapsulated coil. Virtually all our general

purpose relays are available with DuPont Rynite® PET encapsulation; a UL recognized

Class F insulation system. Encapsulation locks the coil terminals into place, eliminat-

ing breakage, puts the copper winding in direct contact with its wrap, allowing for the

most ecient heat transfer and protects against moisture and fungus problems that

can occur with other wraps. Insist on Deltrol Controls encapsulated coils; look–alike,

snap–on plastic covers do not oer the same protection.

Deltrol Controls takes many extra steps in the assembly of our relays. An example is

a riveted retainer/stop that eliminates the chance the armature will pop o during

handling and shipping, and it provides a stop for armature movement. Relays

without this feature are subject to bending and setting of the moveable contact

points on impact, which can cause the response characteristics to change.

Relay Product Features

Molded Coils

Precision Contacts

Skeined Wire

Gusseted Frames

Armature Stop/Retainer

Deltrol

CONTROLS

www.deltrol–controls.com

Rynite® is a registered trademark of DuPont