The 326 on delay and 327 off delay are “octal” base constructed 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 versions are available. Single pole and double pole versions have 8 pin bases. The 3 pole version has 11 pins. All are intended for socket mounting.

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



N/A 326

Contact Arrangement

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

Construction Style

N/A Octal style plug-in

Timing Range

N/A 6.0 - 60 s

Operating Voltage

N/A 12 VDC


Functions Available

N/A On-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


Contact Configuration


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


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


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



N/A -20 to 70 ºC-4 to 158 ºF


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


Mounting Position

N/A Any

Mating Socket

N/A 8 pin = SK-CIR8-DS
11 pin = SK-CIR11-DS


N/A Clear Polycarbonate


N/A 5.0 oz142 g