255
SERIES
Y RELA YS
DUAL COIL LATCHING PLUG-IN RELAYS
UL R ecognized
F ile No. E 13224
R
The 255 Series is a two coil latching version of the general purpose type 219 relay. When the
operate coil is momentarily energized, the energized position with the power removed from the
coil. The second coil when momentarly energized, provides electrical reset of the contacts. All
contacts operate from a common armature to prevent contatct overlapping. Coils are rated for
continous duty.
R
NUCLEAR QUALIFIED VERSION AVAILABLE
OUTLINE DIMENSIONS
Dimensions shown Inch & (Millimeters)
4.56
(115.8)
7
1.468
(37.28)
6
3.75
(95.25)
LOC K ING DE VIC E
OPTIONS
12
2.625
(66.67)
1
* Electrical Set Manual Reset
* Manual Set Electrical Reset
o
GENERAL SPECIFICATIONS (@ 25 C)
COIL
DIELECTRIC STRENGTH
All Mutually Insulated Points:
Insulation :
Enclosure:
Weight:
PAGE
12
7
TYPE
CONTACTS
B255ABXP DPDT + 1 NO
B255XBXP
DPDT
B255XCP
3PDT
B255BXBP 2 NO + 2 NC
B 255X C X P
(3 P DT )
6
1500 V rms
1/4" over surface, 1/8" thru Air
o
RESET
1
12
7
o
-10 C to +60 C
MATING SOCKETS
27390 - 12 PIN
B 255AB X P
(DP DT + 1 N.O. )
Clear polycarbonate.
215 g (7.58 oz.) APPROX.
1
7
12
1
6
RESET
6
RESET
10 Million Operations no load
100,000 Operations @ Rated Load.
500,000 Operations 1/2 Rated Load.
B 255B X B P
(2 N.O. + 2 N.C . )
OP E R ATE
MISCELLANEOUS
25 mS Max. @ Nominal Voltage.
20 mS Max. @ Nominal Voltage.
OP E R ATE
Mechanical:
Electrical:
OP E R ATE
Operate Time: (operate coil)
Release Time: (Reset coil
energized)
1
6
OP E R ATE
TIMING
LIFE EXPECTANCY
B 255X B X P
(DP DT )
Silver Alloy & Gold Diffused
(Standard)
Contact Material:
Rated Operation:
(VIEWED FROM TERMINAL END)
RESET
CONTACTS
TEMPERATURE
WIRING DIAGRAMS
85% of Nominal Voltage
80 % of Nominal Voltage
110% of nominal, voltage
Pull-in, min. AC
Pull-in min. DC
Overvoltage, max.
7
12
STRUTHERS-DUNN
WE B S ITE : www.s truthers -dunn.com
E MAIL : info@ s truthers -dunn.com FAX # 1-843-662-8862 P HONE # 1-843-664-3303
DUAL COIL LATCHING PLUG-IN RELAYS
R
UL Recognized
File No. E13224
Y RELA
255 YS
SERIES
R
STRUTHERS-DUNN
ORDERING CODE
T ypical T ype No.
B 255 X C X P L M -
Series
B 255 2 C oil Latch plug-in
Contact Arrangements
XBX DPDT
XCX 3PDT
ABX SPST-NO & 2 Form C
BXB DPST-NO & 2 Form B
Standard Features
Polycarbonate Cover- CODE "P"
Optional Features
Indicator Lamp across both coils - CODE "L"
Manual Actuator- CODE "M"
Perm. Magnet Blowout - CODE "69"
Coil Voltage
Coil Voltages & Frequencies must be specified.
Note: For time delay on energizing reset coil,
specify 256 series in lieu of B255
DC RELAYS, 1.8 WATTS (2.5 W @ 125VDC)
OPTIONS
o
130 C C oil
C oil S uppres s ion
Light & Actuator
F ine S ilver-G old Diffus ed B ifurcated C ontacts
SUFFIX
U
V
LM
33
o
COIL SPECIFICATIONS @ 25 C
*AC COIL, 50/60 HZ
RESET COIL (3VA) OPERATE COIL (5VA)
Nominal Resistance Coil Power Resistance Coil Power
Ohms
(mA)
(mA)
Voltage Ohms
± 10%
± 10%
1.10
3.0
6
840
800
4.20
14.5
12
256
410
15.5
52.0
24
150
200
540
1450
120
26.5
45.0
1815
5000
240
4.8
13.2
Current inrush on all AC coils is less than twice the listed
milliamperes ratings as shown in the AC coil data table.
*Currents shown in table measured at 60 Hz.
DC COIL DATA
OPERATE COIL (1.8W)
Resistance Coil Power
Ohms
(mA)
± 10%
15.5
385
63.5
189
250
96.0
6200
20.0
DC relays, 1.8 Watts (2.5 W @ 125VDC)
RESET COIL 1.4W)
Nominal Resistance
Coil Power
Voltage Ohms
(mA)
± 10%
21.0
6
286
85.0
12
141
300
24
80
115/125 8000
14.4
CONTACT RATINGS
VOLTS
24 VDC
120 VAC
240 VAC
28 VDC
125 VDC
125 VDC
125 VDC
250 VDC
250 VDC
BREAK
MAKE CARRY RESISTIVE INDUCTIVE
10A
10A
10A
30A
3A
10A
10A
30A
1A
30A
10A
5A
3A
10A
10A
30A
0.1A
10A
0.5A
30A
** F or vers ions with s uffix " 69"
P ermanent Magnet B lowouts
0.5A
SM 30A
10A
1.5A
1.5A
DM 30A
4A
10A
150 mA
SM 30A
10A
0.5A
0.5A
DM 30A
10A
1.5A
**Relays with Code 69 feature ( Check with factory for UL & CSA Listing).
STRUTHERS-DUNN
WE B S ITE : www.s truthers -dunn.com
E MAIL : info@ s truthers -dunn.com FAX # 1-843-662-8862 PHONE # 1-843-664-3303
PAGE