SERIES
10 AMP SQUARE BASE TIME DELAY RELAY
286/287
SERIES 286 ON DELAY, 287 OFF DELAY
AC OR DC INPUT
1, 2 OR 3 POLE 10 AMP CONTACTS.
UL Recognized
File No. E13224
GENERAL SPECIFICATIONS SERIES 306 TIMER
INPUT
Coil Voltage
Nominal Voltage:
AC: 24 to 240, DC: 12 to 125
AC - 85% of Nominal
Minimum Oper. Voltage:
DC - 80% of Nominal
Max. allowed voltage:
110% of nominal voltage
CONTACTS
Contact Material:
Rating:
Silver Cadmium Oxide.
10 Amps @ 120/240 VAC
10 Amps @ 28 VDC
1/3 Hp@ 120AC
1/2 Hp @ 240 VAC
OPERATIONAL CHARACTERISTICS
Repeatability:
The series 286 On Delay & 287 Off Delay
Time Delay Relays have timing ranges
from 0.1 to 300 Seconds. The 286 timer has
up to three poles and the 287 timer has up to
two poles. The 286 & 287 time delay relays
are rated at 10 Amps, 120/240 Vac, 28 Vdc.
± 3% @ 20˚C to 25˚C (AC +16 mS)
Adjustable ± 10% Within temperature
& voltage range. Fixed: ± 10% @ 25˚C
100 mS up to 60 Seconds\
Accuracy:
Recycle Time:
150 mS, 60 to 300 Seconds
INSULATION CHARACTERISTICS
Dielectric Strength:
500 V rms across open contacts
1500 V rms between current carrying
parts
1000 Megohms min. @ 500 VDC.
5 mS, 0 to 2000 V 20 uSec peak
No false contacting is power is
interupted during timing.
DC coil are polarity protected.
-
All Mutually Insulated Points:
SEE SECTION 10
FOR
MATING SOCKETS
Insulation Resistance:
Transient Protection:
False Contacting:
Inverse polarity protection:
ENVIRONMENTAL CAPABILITIES
Ambient Temperature Rating:
10˚C to +70 ˚C
LIFE EXPECTANCY
Mechanical:
10 Million Operations no load
100,000 Operations @ Rated Load.
Electrical:
MISCELLANEOUS
Enclosure:
Clear Polycarbonate
5.0 oz approx. (142 g)
Weight:
Struthers-Dunn
286 XAX C 001 F 120A
WIRING DIAGRAM
Viewed from Terminal Side
Typical Part Number
Series
286 - ON DELAY
287 - OFF DELAY
EXTERNAL
RESISTOR
EXTERNAL
RESISTOR
EXTERNAL
SWITCH
Contact Arrangements
XAX (SPDT)
XBX (DPDT)
XCX (3PDT)
287 MODEL
ONLY
1
4
2
5
3
6
1
4
2
5
3
6
Mounting Options
C
Plug-in
C1Note 1 Bracket
7
9
8
CS1Note 1 Top Stud
C2
CS2
7
8
9
Side Tapped Hole
Side Stud
EXTERNAL
SWITCH
287 MODEL
ONLY
B
A
A
+
B
+
-
-
INPUT
INPUT
Timing Ranges
0.1 - 1.0 Sec - Code 001
0.2 - 2.0 Sec - Code 002
1.0 - 10 Sec - Code 010
3.0 - 30 Sec - Code 030
6.0 - 60 Sec - Code 060
18 - 180 Sec - Code 180
30 - 300 Sec - Code 300
286XBX (DPDT)
287XBX (DPDT)
286XAX (SPDT)
287XAX (SPDT)
1
4
2
5
3
6
SEE SECTION
10
FOR MATING SOCKETS
Adjustment Options
Adjustment Knob) - No Code
Fixed Delay - Specify Fixed Time & Code F *
Remote Adjustment - Code R **
7
8
9
Operating Voltage
AC; 24, 48, 120, 240 (Add "A" )
DC; 12, 24, 48, 115-125 (Add "D")
B
A
+
-
INPUT
ON DELAY
286XCX
(F * Models) - timing code does not apply. Specify single delay time requirement
(R ** Models)- Available only for SPDT and DPDT models. External potentiometer
required.
Notes:
Note 1: Bracket & top stud Not available with
adjustable timing.
Example of typical fixed time delay relay part number- 286XBXCS1-3.5F-120A
(ON DELAY, DPDT, TOP STUD, 3.5 SEC FIXED, 120 VAC COIL INPUT)
PAGE 125
WEBSITE: www.magnecraft.com EMAIL:info@magnecraft.com FAX ON DEMAND 1-800/891-2957, DOCUMENT 100
ETC [ ETC ]
