The 255 Series is a two coil latching version of the general purpose type 219 relay. When the operate coil is momentarily energized, contacts transfer and remain so even after coil power is removed. The second coil when momentarly energized, provides electrical reset of the contacts. All contacts operate from a common armature to prevent contatct overlapping. Coils are rated for continous duty. Both coils can be energized at the same time with no damage. The operate coil is dominant.

Additional contact configurations and coil options are available – please use the RFQ/RFI tab above to submit your request.
UL Recognized, UL Listed, & CSA
Unit of Measure



N/A 255

Contact Arrangement

N/A ABX (DPDT & 1 N.O. contact)

Standard Features

N/A Polycarbonate cover

Optional Features

N/A Manual actuator

Coil Voltage

N/A 120 VAC


Contact Configuration

N/A Up to 3PDT or 4PST

Contact Material

N/A Silver Alloy Gold Diffused

Contact Rating

N/A 10 A

Contact Rating 120 / 240VAC Resistive

N/A 10/5 A

Contact Rating 28VDC Resistive

N/A 10 A

Contact Resistance, Initial

N/A 100 milliohms max at 6VDC


Coils Available

N/A AC and DC

Nominal Coil Power AC

N/A 4.9 VA

Nominal Coil Power DC

N/A 1.8 W

Input Voltage Tolerance - AC

N/A 85% to 110% of nominal

Input Voltage Tolerance - DC

N/A 80% to 110% of nominal

Drop-out voltge

N/A 10% of nominal


N/A Continuous


Operate Time (max)

N/A 25 ms

Release Time (max)

N/A 20 ms

Dielectric Strength

Across Open Contacts

N/A 1500 Vrms

Between Mutually Insulated Point

N/A 1500 Vrms

Insulation Resistance

N/A 100 Megohms min at 500VDC



N/A -20 to 60 ºC-4 to 140 ºF


N/A -40 to 105 ºC-40 to 221 ºF

Life Expectancy

Electrical (full load)

N/A 100,000

Mechanical (no load)

N/A 10,000,000


Mounting Position

N/A Any

Mating Socket

N/A 27390D


N/A Clear Polycarbonate


N/A 1.8 oz300 g