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K-3
STANDARD TERMINAL
BLOCK RELAYS
XRU1D Series
Starts at
$
15
l Pluggable Relay Allows for
Field Replacement
l Functional Plug-In Bridges
l Screw Connections
l LED Status Indication
l DIN Rail Mount
l Only 6.2 mm (0.24") Wide
l All Common Input Voltages
Between 24 Vdc to 120 Vac
l NEMA 6 (IP67) Protection
l Environmentally Friendly,
Cadmium-Free Contact
l Easy, Cost-Effective and
Replacement Using
Engagement Lever
The XR Series Terminal Block Relays are
ideal for applications that require a high
switching capacity and long electrical service
life. The relays are plug-in interfaces that
connect to basic terminal blocks. The XR
Series utilizes screw technology, as well as
offers quick system wiring, superior safety
features, clear labeling and a high level of
modularity.
Application Description
Used in automation systems,
electromechanical relays guarantee a safe
connection between process I/O and
electronic controls. The following functions
are covered by relay coupling elements:
l Electrical isolation between the
input and output circuits
l Independence of the type of
switching current (AC and DC)
l High short-term overload
resistance in the event of short
circuits or voltage peaks
l Low switching losses
l Ease of operation
Accessories
Power Terminal Block
The XRAPLCESK power terminal block has
the same shape as the relay modules and is
used to feed in the bridging potentials. The
nominal current is 32 A. When the total
current is less than or equal to 6 A, supply
can take place directly at the connecting
terminal blocks of one of the connected
relays.
End Cover
The XRAATPBK end cover is required at the
start and stop of a relay strip. It can also be
used for visual separation of groups of
relays as well as separating relays with
voltages greater than 250V and separating
neighboring bridges with different potentials.
It is equipped with pre-scored break out
points at the bridging positions so that
individual bridges can be passed through as
needed. It may also be necessary to use the
end cover between adjacent relays when
three phases (L1, L2, L3) are used on the
contact side of the relay.
Bridges
The XRAFBST colored, insulated plugin
bridge system reduces wiring time by up to
70% compared to conventionally wired
relays. The XRAFBST2, 2-position bridges,
are suited for bridging a smaller number of
relays and total currents <6 A. When a circuit
is supplied from both sides, the circuit can
be opened at any point, allowing all other
modules to continue being supplied at the
same time. The XRAFBST500 allow up to
80 modules to be bridged at one time. If
bridges with different potentials meet in
neighboring modules, the end cover
XRAATPBK should be used. All bridges are
equipped with a groove for removal with a
standard screwdriver.
XRU1D120U, $21, shown
larger than actual size.
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K-4
11
14
12
A2
A1
94 (3.70)
6.2 (0.24)
80 (3.15)
Dimensions:
mm (in)
Schematic for standard
terminal block relays
MODEL NO. PRICE DESCRIPTION
XRU1D120U $21 1 PDT relay, 120 Vac/110 Vdc coil voltage
XRU1D24 15 1 PDT relay, 24 Vdc coil coltage
XRU1D24U 17 1 PDT relay, 24 Vac/Vdc coil voltage
To Order
(Specify Model Number)
AVAILABLE FOR FAST DELIVERY!
Ordering Example: XRU1D120U, 1 PDT relay, $21.
REPLACEMENT RELAYS AND ACCESSORIES
MODEL NO. PRICE DESCRIPTION
XRR1D120U $10.25 Replacement relay for XRU1D120U
XRR1D24 7.00 Replacement relay for XRU1D24 and XRU1D24U
XRAPLCESK-5PK 125.00 Power terminal block, 5 pack
XRAATPBK-5PK 10.50 Black end cover, 5 pack
XRAFBST2RD-10PK 14.00 2-position red snap in jumper, 10 pack
XRAFBST2BU-10PK 14.00 2-position blue snap in jumper, 10 pack
XRAFBST2GY-10PK 14.00 2-position gray snap in jumper, 10 pack
XRAFBST500RD-5PK 110.00 80-position red snap in jumper, 5 pack
XRAFBST500BU-5PK 110.00 80-position blue snap in jumper, 5 pack
XRAFBST500GY-5PK 110.00 80-position gray snap in jumper, 5 pack
SPECIFICATIONS
Input Voltage:
XRU1D24: 24 Vdc
XRU1D24U: 24 Vac/Vdc
XRU1D120U: 120 Vac/110 Vdc
Typical Input Current:
XRU1D24: 9 mA
XRU1D24U: 11 mA (24 Vac),
8.5 mA (24 Vdc)
XRU1D120U: 3.5 mA (120 Vac),
3 mA (110 Vdc)
Connection Type: Screw connection
Rigid Solid AWG (mm2): 26 to 14
(0.14 to 2.5)
Flexible Stranded AWG (mm2):
26 to 14 (0.14 to 2.5)
Typical Response Time:
XRU1D24: 5 mS
XRU1D24U and XRU1D120U: 6 mS
Typical Release Time:
XRU1D24: 8 mS
XRU1D24U and XRU1D120U: 15 mS
Input Protection:
XRU1D24: Polarity protection diode,
free-wheeling diode
XRU1D24U and XRU1D120U:
Bridge rectifier
Contact Type: 1 PDT
Contact Material: AgSnO
Max Switching Voltage: 250 Vac/Vdc
1
Min Switching Voltage: 12 Vac/Vdc
Limiting Continuous Current: 6 A
Min Switching Current: 10 mA
Min Switching Power: 120 mW
Ambient Temp Range: -20 to 60°C
(-4 to 140°F)
Rated Operating Mode:
100% operating factor
Inflammability Class:
V0, in accordance with UL 94
Mechanical Service Life:
2 x 10
7
cycles
1 The separating plate, XRAPLCESK,
should be installed for voltages greater than
250V (L1, L2, L3) between identical terminal
points of adjacent modules. Potential
bridging is then possible with the XRAFBST
bridge system.
Page 3
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