
B255
SERIES
300 VOLT LATCHING PLUG-IN RELAYS
R
UL Recognized
File No. E13224
R
THE SERIES B255
IS A TWO COIL LATCHING VERSION OF THE GENERAL PURPOSE
TYPE 219 RELAY. WHEN THE OPERATE COIL IS MOMENTARILY ENERGIZED, THE
RELAY MECHANICALLY LATCHES IN THE ENERGIZED POSITION AND REMAINS IN THE
ENERGIZED POSITION WITH THE POWER REMOVED FROM THECOIL. THE SECOND
COIL WHEN MOMENTARLY ENERGIZED, PROVIDES ELECTRICAL RESET OF THE
CONTACTS. ALL CONTACTS OPERATE FROM A COMMON ARMATURE TO PREVENT
CONTACT OVERLAPPING. COILS ARE RATED FOR CONTINUOUS DUTY. NUCLEAR
QUALIFIED VERSIONS ARE AVAILABLE. CONTACT THE FACTORY FOR DETAILS.
U
V
LM
33
SUFFIX
OPTIONS
130C Coil
Coil Suppression
Light & Actuator
Fine Silver-Gold Diffused Bifurcated Contacts
B255 XCX P LM -
Series
B255 2 Coil 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
ORDERING CODE
Typical Type No.
DC RELAYS, 1.8 WATTS (2.5 W @ 125VDC)
Struthers-Dunn
PAGE 175
WEBSITE: www.magnecraft.com EMAIL:info@magnecraft.com FAX ON DEMAND 1-800/891-2957, DOCUMENT 100
CONTACTS
DPDT + 1 NO
DPDT
3PDT
2 NO + 2 NC
6
1
7
12
B255XBXP
(DPDT )
6
1
7
12
B255XCXP
(3 PDT)
6
1
7
12
B255ABXP
(DPDT + 1 N.O. )
R
O
O
RESET
R
O
6
1
7
12
B255BXBP
(2 N.O. + 2 N.C. )
R
O
B255ABXP
B255XBXP
B255XCP
B255BXBP
WIRING DIAGRAMS
(VIEWED FROM TERMINAL END)
TYPE
4.56
(115.8)
1
1
6
7
L
2.625
(66.67)
1.468
(37.28)
3.75
(95.25)
OUTLINE DIMENSIONS
Dimensions shown Inch & (Millimeters)
SEE SECTION 10
FOR
MATING SOCKETS