286/287 Series - Squre Base Time Delay Relay SPDT - 3PDT, 10 Amp 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 E13324 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. GENERAL SPECIFICATIONS (@ 25 C) Timing: Functions Available Time Range Timing Adjustment Timing Repeatability (Constant voltage and temperature) Reset Time maximum Input Pulse Length minimum Contacts: Contact Configuration Contact Material Contact Rating 120 / 240VAC Resistive 28VDC Resistive Motor 120VAC Motor 240VAC Minimum Contct Load Contact Resistance, Initial 10 Amp / 10 Amp 10 Amp 1/3Hp 1/2Hp 500mW 100 milliohms max @ 6VDC, 1A AC and DC 2.75VA 2W 85% to 110% of nominal 80% to 110% of nominal Yes Yes Continuous Dielectric Strength: Across Open Contacts Between Mutally Insulated Points Insulation Resistance Life Expectancy: Electrical (full load operations) Mechanical (no load operations) Miscellaneous: Mounting Position Mating Socket Enclosure Weight 7/11 150mS 50mS SPDT, DPDT, 3PDT Silver Alloy Coil: Coils Available Nominal Coil Power Input Voltage Tolorance -AC Input Voltage Tolorance -DC Transient Protection Reverse Polarity Protection Duty Temperature: Operating Storage On-delay, Off-delay Up to 300 seconds Knob 3% 500Vrms 1500Vrms 1,000 Mohms min @ 500VDC -20 to 70C (-4 to 158F) -40 to 85C (-40 to 185F) 100,000 10,000,000 Any SK-SQB11-DS Clear Polycarbonate 5.0oz (142 grams) www.struthers-dunn.com (843) 664-3303 Timer / Sensor - Time Delay & Sensor Relays 5 - 25 Amp C 001 F 120VAC 286/287 Wire Diagram Series External switch 287 Model Only 286 - On delay 287 - Off delay Contact Arrangement1 XAX (SPDT) - (1 form C) XBX (DPDT) - (2 form C)4 XCX (3PDT) - (3 form C) Mounting Options7 C - Plug-in C1 - Bracket A CS1 - Top stud C2 - Side tapped hole CS2 - Side stud Timing Ranges 0.1 - 1.0 Seconds - CODE 001 0.2 - 2.0 Seconds - CODE 002 1.0 - 10 Seconds - CODE 010 3.0 - 30 Seconds - CODE 033 6.0 - 60 Seconds - CODE 060 18 - 180 Seconds - CODE 180 30 - 300 Seconds - CODE 300 Adjustment Options Adjustment knob - No CODE Fixed - Specify fixed time - CODE F Remote adjustment - CODE R Operating Voltage AC: 24, 48, 120, 240, (Add VAC) DC: 12, 24, 48, 115-125 (Add VDC) 2 3 5 6 8 9 B Input 286XAX 1 2 3 4 5 6 7 8 9 A External switch 287 Model Only B Input Section 7 Ordering Code 286 XAX 286XBX 287XBX 1 2 3 4 5 6 7 8 9 A Input B On delay 286XCX 286XCX www.struthers-dunn.com (843) 664-3303 7/12 286/287 Series - Squre Base Time Delay Relay SPDT - 3PDT, 10 Amp Outline Dimensions Dimensions Shown in inches & (millimeters) Plug-in, Adjustable Timing Side Stud or Tapped Hole, Adjustable Timing 0.65 (16.5) 0.65 (16.5) 0.16 (4.2) 0.43 (11.0) 2.89 (73.4) 0.83 (21.2) 6-32 Stud 1.40 (35.6) 0.26 (6.7) 0.26 (6.7) 1.51 (38.4) 1.40 (35.6) Plug-in Fixed or Remote Timing 1.39 (35.3) 1.39 (35.3) 1.89 (47.9) 0.26 (6.7) www.struthers-dunn.com 1.51 (38.4) 1.48 (37.6) 0.17 (4.3) 1.89 (47.9) 2.48 2.75 (63.1) (69.8) 286 Series 7/13 6-32 Tapped hole or 6-32 stud Bracket Fixed or Remote Timing 1.48 (37.6) 0.26 (6.7) 2.89 (73.4) Anti-rotation tab fits 0.177 DIA. hole (No. 16 Drill) (843) 664-3303 Timer / Sensor - Time Delay & Sensor Relays 5 - 25 Amp Outline Dimensions Dimensions Shown in inches & (millimeters) Side Stud, Fixed or remote Timing 0.14 (3.6) 1.39 (35.3) Anti-rotation tab fits 0.177 DIA. hole (No. 16 Drill) 1.48 (37.6) 0.83 (21.2) 6.-32 Stud 0.34 (8.7) Side Tapped Hole, Fixed or Remote Timing 1.39 (35.3) 0.12 (3.17) 0.43 (11.0) 1.89 (47.9) 1.48 (37.6) 0.83 (21.2) 0.26 (6.7) Anti-rotation tab fits 0.177 DIA. hole (No. 16 Drill) 6-32 Tapped hole 0.28 (7.14) Top Stud Fixed or Remote Timing 6-32 Stud 0.37 (9.52) 0.28 (7.1) 0.43 (11.1) 1.50 Max. (38.1) 1.87 Max. (47.6) A 1.37 Max. (34.9) 1 4 2 5 3 6 7 8 9 B Note: Bracket & top stud not available with adjustable timing All terminals 0.18 x 0.02 (4.7 x 0.5) Section 7 0.12 (3.2) 287 Series www.struthers-dunn.com (843) 664-3303 7/14