The 286 on delay and 287 off delay are square base, bladed versions of time delay relays. Both AC and DC versions are available. On delays can have up to three poles. The timing circuit is a fully encapsulated precision RC (resistor – capacitor) network typically used in applications where oscillators are not desired. Fixed time and externally adjustable versions are available. The package on this series is typically socket mounted. It can also be panel mounted allowing direct connections to terminals with quick-connects or soldering.

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

Specifications

Series

N/A 287

Contact Arrangement

N/A XBX (DPDT) - (2 form C)

Mounting Options

N/A Plug-in

Timing Range

N/A 6.0 - 60 s

Adjustment Options

N/A Adjustment knob

Operating Voltage

N/A 120 VAC

Timing

Functions Available

N/A Off-delay

Time Range

N/A Up to 300 seconds

Timing Adjustment

N/A Knob

Timing Repeatability (Constant voltage and temperature)

N/A 3%

Reset Time maximum

N/A 150

Input Pulse Length minimum

N/A 50

Contacts

Contact Configuration

N/A SPDT, DPDT, 3PDT

Contact Material

N/A Silver Alloy

Contact Rating

N/A 10 A

Contact Rating 120 / 240VAC Resistive

N/A 10 A / 10 A

Contact Rating 28VDC Resistive

N/A 10 A

Contact Rating Motor 120VAC

N/A 1/3 hp

Contact Rating Motor 240VAC

N/A 1/2 hp

Minimum Contact Load

N/A 500 mW

Contact Resistance, Initial

N/A 100 milliohms max at 6VDC, 1A

Coil

Coils Available

N/A AC and DC

Transient Protection

N/A Yes

Reverse Polarity Protection

N/A Yes

Nominal Coil Power AC

N/A 2.75 VA

Nominal Coil Power DC

N/A 2 W

Input Voltage Tolerance - AC

N/A 85% to 110% of nominal

Input Voltage Tolerance - DC

N/A 80% to 110% of nominal

Duty

N/A Continuous

Dielectric Strength

Across Open Contacts

N/A 500 Vrms

Between Mutually Insulated Point

N/A 1500 Vrms

Insulation Resistance

N/A 1,000 Mohms min at 500VDC

Temperature

Operating

N/A -20 to 70 ºC-4 to 158 ºF

Storage

N/A -40 to 85 ºC-40 to 185 ºF

Life Expectancy

Electrical (full load)

N/A 100,000

Mechanical (no load)

N/A 10,000,000

Miscellaneous

Mounting Position

N/A Any

Mating Socket

N/A SK-SQB11-DS

Enclosure

N/A Clear Polycarbonate

Weight

N/A 5.0 oz142 g