Item # 286XBXC-030-24VAC, 286/287 Series - Squre Base Time Delay Relays on Struthers-Dunn

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	Item # 286XBXC-030-24VAC 286/287 Series - Squre Base Time Delay Relays

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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.

For Additional Configuration please contact the manufacturer.

286/287 Series - Squre Base Time Delay Relays

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286/287 Series - Squre Base Time Delay Relays - Dimensional Picture

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Specifications · Timing · Contacts · Coil · Dielectric Strength · Temperature · Life Expectancy · Miscellaneous

Specifications

Series		286

Contact Arrangement		XBX (DPDT) - (2 form C)

Mounting Options		Plug-in

Adjustment Options		Adjustment knob

Operating Voltage		24 VAC

Timing

Functions Available		On-delay

Time Range		Up to 300 seconds

Timing Adjustment		Knob

Timing Repeatability (Constant voltage and temperature)		3%

Reset Time maximum		150

Input Pulse Length minimum		50

Contacts

Contact Configuration		SPDT, DPDT, 3PDT

Contact Material		Silver Alloy

Contact Rating		10 A

Contact Rating 120 / 240VAC Resistive		10 A / 10 A

Contact Rating 28VDC Resistive		10 A

Contact Rating Motor 120VAC		1/3 hp

Contact Rating Motor 240VAC		1/2 hp

Minimum Contact Load		500 mW

Contact Resistance, Initial		100 milliohms max at 6VDC, 1A

Coil

Coils Available		AC and DC

Transient Protection		Yes

Reverse Polarity Protection		Yes

Nominal Coil Power AC		2.75 VA

Nominal Coil Power DC		2 W

Input Voltage Tolerance - AC		85% to 110% of nominal

Input Voltage Tolerance - DC		80% to 110% of nominal

Duty		Continuous

Dielectric Strength

Across Open Contacts		500 Vrms

Between Mutually Insulated Point		1500 Vrms

Insulation Resistance		1,000 Mohms min at 500VDC

Temperature

Operating		-20 to 70 ºC -4 to 158 ºF

Storage		-40 to 85 ºC -40 to 185 ºF

Life Expectancy

Electrical (full load)		100,000

Mechanical (no load)		10,000,000

Miscellaneous

Mounting Position		Any

Mating Socket		SK-SQB11-DS

Enclosure		Clear Polycarbonate

Weight		5.0 oz 142 g

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		286/287 Series - Squre Base Time Delay Relays - Product Brochure (PDF, 570KB)

Item # 286XBXC-030-24VAC 286/287 Series - Squre Base Time Delay Relays

Series

Contact Arrangement

Mounting Options

Adjustment Options

Operating Voltage

Functions Available

Time Range

Timing Adjustment

Timing Repeatability (Constant voltage and temperature)

Reset Time maximum

Input Pulse Length minimum

Contact Configuration

Contact Material

Contact Rating

Contact Rating 120 / 240VAC Resistive

Contact Rating 28VDC Resistive

Contact Rating Motor 120VAC

Contact Rating Motor 240VAC

Minimum Contact Load

Contact Resistance, Initial

Coils Available

Transient Protection

Reverse Polarity Protection

Nominal Coil Power AC

Nominal Coil Power DC

Input Voltage Tolerance - AC

Input Voltage Tolerance - DC

Duty

Across Open Contacts

Between Mutually Insulated Point

Insulation Resistance

Operating

Storage

Electrical (full load)

Mechanical (no load)

Mounting Position

Mating Socket

Enclosure

Weight