RU
Series
Universal Relays
Full Featured Universal Miniature Relays
Environmental
Measures
•
Lead-free construction
•
Cadmium-free contacts
•
Optional relay sockets are also com-
pletely lead-free.
Latching Lever
Photo shows the lever in the
latched position
Mechanical Indicator
Marking Plate
Dimensions (mm)
20.4
Reliability
•
The simple design without using lead
wires ensures high reliability.
LED Indicator
Versatility
•
Snap-on marking plate as standard.
Optional marking plates are also
available in five colors.
•
Wide switching current ranges
Type
Maximum
Switching Current
Minimum
Applicable Load
∗
∗
Reference values
RU2
10A
24V DC
5 mA
RU4
6A
1V DC
1 mA
RU42
3A
1V DC
0.1 mA
Safety
•
Non-polarized LED indicator and
mechanical flag indicator are stan-
dard provisions for plug-in terminal
type relays, except for simple types.
•
Also available with a latching lever
for operation check without energiz-
ing the coil. The latching lever is
color coded for AC (orange) and
DC (green).
Applicable
Standards
•
UL recognized
•
c-UL recognized
•
CSA certified
(bifurcated contact types only)
•
TÜV approved
•
CE marked
Orange
Yellow
Green
Blue
2
With Latching Lever
AC Coil
Without Latching Lever
AC Coil
With Latching Lever
DC Coil
Without Latching Lever
DC Coil
3.7
19.0
5.1
RU
Series
Universal Relays
Full featured universal miniature relays
Designed with environment taken into consideration
•
Two terminal styles: plug-in and PCB mount
•
Non-polarized LED indicator available on plug-in relays
•
No internal wires, lead-free construction
•
Cadmium-free contacts
•
Mechanical flag indicator available on plug-in relays
•
Manual latching lever with color coding for AC or DC coil
•
Snap-on yellow marking plate; optional marking plates are
available in four other colors
•
Maximum contact ratings: 10A (RU2), 6A (RU4), 3A (RU42)
•
UL, CSA, c-UL, EN compliant
Standard
UL508
CSA C22.2 No. 14
CSA C22.2 No. 14
Mark
Approval Organization / File No.
UL/c-UL File No. E66043
CSA File No. LR35144
(CSA mark on bifurcated contact
types only)
TÜV Product Service
EN61810-1
Self declaration
(EC Low Voltage Directive)
Types
•
Single Contact Type
Termination
Latching Lever
Standard
With Latching Lever
With RC (AC coil only)
With diode (DC coil only)
With diode (DC coil only)
Reverse polarity coil
Standard
Without Latching Lever
With RC (AC coil only)
With diode (DC coil only)
With diode (DC coil only)
Reverse polarity coil
Simple (Note 2)
Simple (Note 2)
Type
Type No.
DPDT
RU2S-∗
RU2S-R-∗
RU2S-D-∗
RU2S-D1-∗
RU2S-C-∗
RU2S-CR-∗
RU2S-CD-∗
RU2S-CD1-∗
RU2S-NF-∗
RU2V-NF-∗
4PDT
RU4S-∗
RU4S-R-∗
RU4S-D-∗
RU4S-D1-∗
RU4S-C-∗
RU4S-CR-∗
RU4S-CD-∗
RU4S-CD1-∗
RU4S-NF-∗
RU4V-NF-∗
Coil Voltage Code
∗
A24, A100, A110, A200, A220
D6, D12, D24, D48, D110
A100, A110, A200, A220
D6, D12, D24, D48, D110
D24
A24, A100, A110, A200, A220
D6, D12, D24, D48, D110
A100, A110, A200, A220
D6, D12, D24, D48, D110
D24
A24, A100, A110, A200, A220
D6, D12, D24, D48, D110
Plug-in Terminal
(Note 1)
PCB Terminal
Without Latching Lever
•
Bifurcated Contact Type
Termination
Latching
Lever
Standard
With
Latching
Lever
Plug-in
Terminal
(Note 1)
Without
Latching
Lever
With RC (AC coil only)
With diode (DC coil only)
With diode (DC coil only)
Reverse polarity coil
Standard
With RC (AC coil only)
With diode (DC coil only)
With diode (DC coil only)
Reverse polarity coil
Simple (Note 2)
Simple (Note 2)
Type
Type No. 4PDT
RU42S-∗
RU42S-R-∗
RU42S-D-∗
RU42S-D1-∗
RU42S-C-∗
RU42S-CR-∗
RU42S-CD-∗
RU42S-CD1-∗
RU42S-NF-∗
RU42V-NF-∗
A24, A100, A110, A200, A220
D6, D12, D24, D48, D100, D110
Coil Voltage Code
∗
A24, A100, A110, A200, A220
D6, D12, D24, D48, D100, D110
A100, A110, A200, A220
D6, D12, D24, D48, D100, D110
D24
A24, A100, A110, A200, A220
D6, D12, D24, D48, D100, D110
A100, A110, A200, A220
D6, D12, D24, D48, D100, D110
D24
Ordering
Information
Specify a coil voltage code in
place of
∗
in the Type No.
Coil Voltage
Code
∗
A24
A100
A110
A200
A220
D6
D12
D24
D48
D100
D110
Coil Rating
24V AC
100-110V AC
110-120V AC
200-220V AC
220-240V AC
6V DC
12V DC
24V DC
48V DC
100V DC
110V DC
PCB
Terminal
Without
Latching
Lever
Note 1: Plug-in terminal types, except for simple types, have an LED indicator and a mechanical indicator as standard.
Note 2: Simple types do not have an LED indicator, a mechanical indicator, and a latching lever.
Accessory
Name
Marking Plate
Type No.
RU9Z-P∗
Ordering Type No.
RU9Z-P∗PN10
Color Code
∗
A (orange), G (green), S (blue), W (white), Y (yellow)
Package Quantity
10
Note: Specify a color code in place of the Type No. When ordering, specify the Ordering Type No.
3
RU Series Universal Relays
Coil Ratings
Rated Voltage (V)
24
100-110
AC
(50/60 Hz)
110-120
200-220
220-240
6
12
DC
24
48
100
110
Coil
Voltage
Code
A24
A100
A110
A200
A220
D6
D12
D24
D48
D100
D110
Rated Current (mA)
±15% (at 20°C)
50 Hz
49.3
9.2-11.0
8.4-10.0
4.6-5.5
4.2-5.0
155
80
44.7
18
9.7
8.9
60 Hz
42.5
7.8-9.0
7.1-8.2
4.0-4.6
3.6-4.2
Coil Resistance (
Ω
)
±10% (at 20°C)
164
3,460
4,550
14,080
18,230
40
160
605
2,560
10,000
12,100
110%
80% maximum
10% maximum
110%
80% maximum
30% minimum
Operating Characteristics (against rated values at 20°C)
Maximum Continuous
Applied Voltage
Minimum Pickup
Voltage
Dropout Voltage
Note 1: The rated current includes the current draw by the LED indicator.
Note 2: Rated voltage 100V DC is available for the bifurcated contact type only.
Contact Ratings
Contact
Continu- Allowable Contact Power
ous
Resistive
Inductive
Current
Load
Load
10A
6A
3A
2500VA AC 1250VA AC
300W DC
150W DC
1500VA AC
180W DC
750VA AC
90W DC
600VA AC
90W DC
200VA AC
45W DC
Voltage
(V)
250 AC
30 DC
250 AC
30 DC
250 AC
30 DC
Rated Load
Res.
Load
10A
10A
3A
3A
3A
3A
Ind.
Load
5A
5A
0.8A
1.5A
0.8A
1.5A
Specifications
Type (Contact)
Contact Material
Contact
Resistance
∗
1
Minimum
Applicable Load
∗
2
Operate Time
∗
3
Release Time
∗
3
Power
Consumption
Insulation
Resistance
RU2 (DPDT)
Silver alloy
50 m
Ω
maximum
24V DC, 5 mA
1V DC, 1 mA
1V DC, 0.1 mA
(reference value)
20 msec maximum
20 msec maximum
AC: 1.1 to 1.4VA (50 Hz), 0.9 to 1.2VA (60 Hz)
DC: 0.9 to 1.0W
100 M
Ω
minimum (500V DC megger)
Between contact and coil: 2500V AC, 1 minute
Between contacts of different poles:
2500V AC,
2000V AC, 1 minute
1 minute
Between contacts of the same pole:
1000V AC, 1 minute
Electrical: 1800 operations/h maximum
Mechanical: 18,000 operations/h maximum
Damage limits:
10 to 55 Hz, amplitude 0.5 mm
Operating extremes: 10 to 55 Hz, amplitude 0.5 mm
Damage limits:
1000 m/s
2
Operating extremes: 150 m/s
2
50,000,000
AC: 50,000,000 operations
DC: 100,000,000 operations
operations
See table below
Simple types:
–55 to +70°C (no freezing)
Others:
–55 to +60°C (no freezing)
5 to 85% RH (no condensation)
Approx. 35g
RU4 (4PDT)
Silver
(gold clad)
RU42 (4PDT)
Silver-nickel
(gold clad)
DPDT
4PDT
4PDT
bifurcated
Note 1: On 4PDT relays, the maximum allowable total current of neighboring
two poles is 6A. At the rated load, make sure that the total current of
neighboring two poles does not exceed 6A (3A + 3A = 6A).
Note 2: Inductive load for the rated load — cos ø = 0.3, L/R = 7 ms
•
UL and c-UL Ratings
Voltage
250V AC
30V DC
Resistive
10A
10A
—
6A
3A
3A
General Use
—
—
6A
—
—
—
Horse Power Rating
RU4
1/10HP
—
RU42
—
—
—
—
RU2 RU4 RU42 RU2 RU4 RU42 RU2
Dielectric Strength
•
CSA Ratings
Voltage
250V AC
30V DC
Resistive
RU42
3A
3A
Operating
Frequency
Vibration
Resistance
Shock Resistance
Mechanical Life
Electrical Life
∗
4
Operating
Temperature
∗
5
Operating Humidity
Weight
•
TÜV Ratings
Voltage
Resistive
6A
6A
3A
3A
5A
5A
Inductive
0.8A
1.5A
0.8A
1.5A
RU2 RU4 RU42 RU2 RU4 RU42
10A
250V AC 10A
30V DC
Surge Suppressor Ratings
Type
AC Coil
DC Coil
With RC
With Diode
Ratings
RC series circuit
R: 20 k
Ω
, C: 0.033 µF
Diode reverse voltage: 1000V
Diode forward current: 1A
Note: Above values are initial values.
∗
1: Measured using 5V DC, 1A voltage drop method
∗
2: Measured at operating frequency of 120 operations/min (failure rate level
P, reference value)
∗
3: Measured at the rated voltage (at 20°C), excluding contact bouncing;
Release time of AC relays with RC:
25 ms maximum
Release time of DC relays with diode: 40 ms maximum
∗
4: Contact Load and Electrical Life (at ambient temperature 20°C)
Type
Voltage
250V AC
RU2
30V DC
110V DC
250V AC
RU4
30V DC
110V DC
RU42
250V AC
30V DC
110V DC
Resistive Load
10A
5A
10A
5A
0.6A
6
3A
6A
3A
0.65A
0.33A
3A
3A
0.44A
Inductive Load
(cos ø = 0.3, L/R = 7 ms)
5A
2.5A
5A
2.5A
0.4A
2.6A
0.8A
2.7A
1.5A
0.33A
0.18A
0.8A
1.5A
0.22A
Electrical Life
(operations minimum)
100,000
500,000
100,000
500,000
100,000
50,000
200,000
50,000
200,000
50,000
200,000
100,000
100,000
100,000
∗
5: Measured at the rated voltage. Simple types include plug-in terminal sim-
ple types and all PCB terminal types.
4
RU Series Universal Relays
RU2 (DPDT Contact)
•
Plug-in Terminal Type
•
LED indicator, mechanical flag indica-
tor, and marking plate are standard
provisions, except on simple types.
•
Available with or without a manual
latching lever
•
Simple types have a marking plate.
•
PCB Terminal Type
•
Marking plate is a standard provi-
sion.
•
Not provided with an LED indica-
tor, mechanical flag indicator, and
manual latching lever.
Photo: RU2S-A100
Photo: RU2V-NF-A100
Dimensions
•
RU2S
Mechanical Indicator Window
Marking Plate (yellow)
•
RU2S-C/RU2S-NF
Mechanical Indicator Window (RU2S-C only)
Marking Plate (yellow)
Color Marking
AC: Yellow
DC: Blue
•
RU2V
Marking Plate (yellow)
Color Marking
AC: Yellow
DC: Blue
Latching
Lever
AC: Orange
DC: Green
LED Indicator
(green)
LED Indicator
(green)
(RU2S-C only)
35.0
35.0
Marking Plate
Removal Slot
Marking Plate
Removal Slot
35.0
Marking Plate
Removal Slot
13.2
0.5
12
14
21.0
21.0
ø1.2
×
2.2 Hole
13
13
1
5
1
5
9
9
21.0
ø1.2
×
2.2 Hole
6.4
12
14
4
4
8
8
6.4
0.5
2.6
2.6
27.5
27.5
27.5
Mounting Hole Layout
7.0
1
8-ø
4.0
0.5
0.8
2.6
Ho
les
Marking plate removal slot is provided only on one side.
Insert a flat screwdriver into the slot to remove the marking plate.
4.1
6.4
12.7
All dimensions in mm.
Internal Connection (Bottom View)
∗
•
RU2S-∗ Standard
(1)12
(4)42
(5)14
(9)11
(8)44
(12)41
∗
•
RU2S-∗R With RC
(1)12
(4)42
(5)14
(9)11
(8)44
(12)41
∗
•
RU2S-∗D With Diode
(1)12
(4)42
(5)14
(9)11
(8)44
(12)41
∗
•
RU2S-∗D1 With Diode
Reverse Polarity Coil
(1)12
(4)42
(5)14
(9)11
(8)44
(12)41
(13)A1
(14)A2
(13)A1
(14)A2
(13)A1
(14)A2
(13)A1
(14)A2
24V AC/DC or less
(1)12
(4)42
24V DC or less
24V DC
(1)12
(4)42
(5)14
(9)11
(8)44
(12)41
(5)14
(9)11
(8)44
(12)41
∗
∗
•
RU2S-NF-∗/RU2V-NF-∗
(1)12
(4)42
(5)14
(9)11
(8)44
(12)41
(13)A1
(14)A2
(13)A1
(14)A2
Over 24V AC/DC
Blank or C comes in place of
∗
to represent types with or without a latching lever.
Over 24V DC
(13)A1
(14)A2
13.2
0.5
5
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