4 catalog 2002 e / 04.03
the universal relay SKR
The strengths of the SKR industry
relay lie in the mature and thoughtout
construction.
Over-average contact safety and life
time, electrical and mechanical status
indication as well as the unsurpassed
construction from only six
assemblies makes the relay to the
excellent power switch.
8 adjustable functions and 8 selectable
time ranges: these are the
special features of the time module
STM. With only one version of the
module all essential features as
operating voltage, functions and
time ranges are adjustable.
The result: a simple and cost-effective
warehousing.
Simple to handle screw-terminal
and clear, rich in contrast labeled
clamp identification, are the base
for a problemles use.
The ZKE/ZKX sockets permit a rapid
and secure installation.
The separated inputs and outputs
are located at one level. There is
also the possibility to plug a time
module STM or other additional
modules together with the SKR
relay.
• simple construction
• high contact load
• contact spring in Beryllium
bronze
• safe wire diameter
• long life time
• large coil room
features
• mostly used where a timedependent
event must be
headed
• switch panel making
• machine industry
• illuminations
• locking of functions
• gate control
• machine control
applications
• electrical or mechanical status
indication
• integrated manual actuation
• simple installation
• indelible scheme on socket or
cover following international
standards
SKR - industry relay
the time module STM the socket
coil voltage
VDC = direct current
VAC = alternating current
catalog 2002 e / 04.03 5
options
D = double contact (AgCuNi)
L = electrical position indication
F = free wheel diode
FL= free wheel diode and
electrical position indication
B = without manual actuation
T = push-button actuation
C = current coil
relay version
SKR 085 A
SKR 115 A
SKR 122 A
A = mechanical position indication
standard: manual actuation
standard voltage
VAC: 024, 115, 230 V
VDC: 024, 110
type number key
SKR 115 A ... 024VDC
order samples
• • SKR085 A VDC/AC SKR115 A VDC/AC SKR122 A VDC/AC
• • • SKR085 AF VDC SKR115 AF VDC SKR122 AF VDC
• • • SKR085 AL VDC/AC SKR115 AL VDC/AC SKR122 AL VDC/AC
• • • • SKR085 AFL VDC SKR115 AFL VDC SKR122 AFL VDC
manual actuation
position indication
free wheel diode
LED display
6 catalog 2002 e / 04.03
mechanic life expectancy > 108 operations
mechanical switching frequency 20 Hz
pull-in time 12 ms at DC / 3-10 ms at AC
release time 3,5 ms at DC / 2-15 ms at AC
bounce time normally open contact 3,5 ms at DC / 3-6 ms at AC
bounce time break contact 9 ms at DC / 6-11 ms at AC
shock resistance AK: > 10 g
vibration resistance 10-55 Hz, AK: 10 g, RK: 3 g
test voltage, coil/contact 2500 Veff
test voltage, open contact 1500 Veff
insulation resistance 1012 Ohm
weight app. 80 g
installation situation any
ambient temperature max. +70 °C
protection standard IP 40
serial version SKR 085 A ...
VDC/AC
with mechanical position indication
options
accessories
plug-in socket ZVE 8
ZKE 088
metal clamp ZKR 008
order numbers
electrical
position indication SKR 085 L ..
with free wheel diode SKR 085 F ..
electrical
position indication
with free wheel diode SKR 085 FL ..
double contact SKR 085 D ..
without manual
actuation SKR 085 B ..
push-button actuation SKR 085 T ..
current coil SKR 085 C ..
(combinations with mechanical and electrical position
indication and free-wheel diode are possible)
Industry relay with two change-over
contacts in different versions.
contact material AgCuNi
contact type single contact
nominal switching capacity 250 VAC 10 A AC1 2500 VA
440 VAC 4 A AC1
electric life expectancy app. 700'000 operations
250 VAC, 10 A, AC1 (360 operations/h)
inrush current max. 40 A for 200 ms
switching current range 50 mA to 10 A
switching power range 0,3 VA(W) to 2500 VA
contact specifications
certificates UL, CSA, VDE
insulation group VDE 0110 / group C 250 VAC
tests, instructions
general data
SKR085 - industry relay, 8-pole
catalog 2002 e / 04.03 7
35 48
13
10
35
dimensions
coil specifications
4 5
6
7
1 8
2
3
12 22
24
A2
11 21
A1
14
- single relay, no heat concentration
by surrounding components with
self-heating.
- on time 100%
1) max. energizing voltage without
contact load
2) min. energizing voltage (guaranteed
value), without operation in advance.
0,5
3,0
0 20 40 60 70
2,5
2,0
1,5
1,0
1
2
energizing voltage range
ambient temperature °C
UB nominal voltage
UN rated voltage
DC-relay
AC-relay
standard coils for direct current (other voltages on enquiry)
rated pull-in reset nominal resistance
voltage voltage voltage current Ohm tolerance
VDC at 20 °C at 20 °C mA at 20 °C %
12 9,6 ≥ 0,6 104 115 +/-10
24 19,2 ≥ 1,2 50,0 480 +/-10
48 38,4 ≥ 2,4 25,9 1850 +/-10
110 88,0 ≥ 5,5 12,2 9'000 +/-15
220 176,0 ≥ 11 7,58 29'000 +/-15
standard coils for alternated current (other voltages on enquiry)
VAC
12 9,6 ≥ 0,6 211 13,3 +/-10
24 19,2 ≥ 1,2 104 52 +/-10
48 38,4 ≥ 2,4 55 240 +/-10
110 88,0 ≥ 5,5 23 1'120 +/-10
220 176 ≥ 11,0 12,0 4'450 +/-10
230 184 ≥ 11,5 11,5 5'600 +/-10
circuit diagram
order numbers
8 catalog 2002 e / 04.03
mechanic life expectancy > 108 operations
mechanical switching frequency 20 Hz
pull-in time 12 ms at DC / 3-10 ms at AC
release time 3,5 ms at DC / 2-15 ms at AC
bounce time normally open contact 3,5 ms at DC / 3-6 ms at AC
bounce time break contact 9 ms at DC / 6-11 ms at AC
shock resistance AK: > 10 g
vibration resistance 10-55 Hz, AK: 10 g, RK: 3 g
test voltage, coil/contact 2500 Veff
test voltage, open contact 1500 Veff
insulation resistance 1012 Ohm
weight app. 80 g
installation situation any
ambient temperature max. +70 °C
protection standard IP 40
serial version SKR 115 A ...
VDC/AC
with mechanical position indication
options
accessories
plug-in socket ZVE 11
ZKE 118
ZKX 118
time module STM 100
metal clamp ZKR 008
electrical
position indication SKR 115 L ..
with free wheel diode SKR 115 F ..
electrical
position indication
with free wheel diode SKR 115 FL ..
double contact SKR 115 D ..
without manual
actuation SKR 115 B ..
push-button actuation SKR 115 T ..
current coil SKR 115 C ..
(combinations with mechanical and electrical position
indication and free-wheel diode are possible)
contact material AgCuNi
contact type single contact
nominal switching capacity 250 VAC 10 A AC1 2500 VA
440 VAC 4 A AC1
electric life expectancy app. 700'000 operations
250 VAC, 10 A, AC1 (360 operations/h)
max. inrush current 40 A for 200 ms
switching current range 50 mA to 10 A
switching power range 0,3 VA to 2500 VA
contact specifications
certificates UL, CSA, VDE
insulation group VDE 0110 / group C 250 VAC
tests, instructions
general data
SKR115 - industry relay, 11-pole
Industry relay with three changeover
contacts in different versions
catalog 2002 e / 04.03 9
35 48
13
10
35
dimensions
coil specifications
2
3
4
5
6
7
8
9
10
1 11
22
21
24
12 32
14 34
A1 A2
11 31
- single relay, no heat concentration
by surrounding components with
self-heating.
- on time 100%
1) max. energizing voltage without
contact load
2) min. energizing voltage (guaranteed
value), without operation in advance.
0,5
3,0
0 20 40 60 70
2,5
2,0
1,5
1,0
1
2
energizing voltage range
ambient temperature °C
DC-relay
AC-relay
standard coils for direct current (other voltages on enquiry)
rated pull-in reset nominal resistance
voltage voltage voltage current Ohm tolerance
VDC at 20 °C at 20 °C mA at 20 °C %
12 9,6 ≥ 0,6 104 115 +/-10
24 19,2 ≥ 1,2 50,0 480 +/-10
48 38,4 ≥ 2,4 25,9 1850 +/-10
110 88,0 ≥ 5,5 12,2 9'000 +/-15
220 176,0 ≥ 11 7,58 29'000 +/-15
standard coils for alternated current (other voltages on enquiry)
VAC
12 9,6 ≥ 0,6 211 13,3 +/-10
24 19,2 ≥ 1,2 104 52 +/-10
48 38,4 ≥ 2,4 55 240 +/-10
110 88,0 ≥ 5,5 23 1'120 +/-10
220 176 ≥ 11,0 12,0 4'450 +/-10
230 184 ≥ 11,5 11,5 5'600 +/-10
circuit diagram
UB nominal voltage
UN rated voltage
order numbers
10 catalog 2002 e / 04.03
mechanic life expectancy > 108 operations
mechanical switching frequency 20 Hz
pull-in time 12 ms at DC / 3-10 ms at AC
release time 3,5 ms at DC / 2-15 ms at AC
bounce time normally open contact 3,5 ms at DC / 3-6 ms at AC
bounce time break contact 9 ms at DC / 6-11 ms at AC
shock resistance AK: > 10 g
vibration resistance 10-55 Hz, AK: 10 g, RK: 3 g
test voltage, coil/contact 2500 Veff
test voltage, open contact 1500 Veff
insulation resistance 1012 Ohm
weight app. 80 g
installation situation any
ambient temperature max. +70 °C
serial version SKR 122 A ...
VDC/AC
with mechanical position indication
options
accessories
PCB socket ZKR 003
metal clamp ZKR 008
electrical
position indication SKR 122 L ..
with free wheel diode SKR 122 F ..
electrical
position indication
with free wheel diode SKR 22 FL ..
double contact SKR 122 D ..
without manual
actuation SKR 122 B ..
push-button actuation SKR 122 T ..
current coil SKR 122 C ..
(combinations with mechanical and electrical position
indication and free-wheel diode are possible)
contact material AgCuNi
contact type single contact
nominal switching capacity 250 VAC 10 A AC1 2500 VA
440 VAC 4 A AC1
electric life expectancy app. 700'000 operations
250 VAC, 10 A, AC1 (360 operations/h)
max. inrush current 40 A for 200 ms
switching current range 50 mA to 10 A
switching power range 0,3 VA to 2500 VA
contact specifications
certificates UL, CSA, VDE
insulation group VDE 0110 / group C 250 VAC
tests, instructions
general data
SKR122 - industry relay, PCB version
Industry relay with three changeover
contacts in different versions
catalog 2002 e / 04.03 11
dimensions
35
30,48
5,08 7,62 48
1,2 x 0,8
6
35
25,4 10,16
b
12 22 32
14 24 34
11 21 31
a
circuit diagram
10,16
5,08
25,4
37
10,16
12
1,3±0,1
30,48
38,5
7,62
drilling plan (view on solder side)
- single relay, no heat concentration
by surrounding components with
self-heating.
- on time 100%
1) max. energizing voltage without
contact load
2) min. energizing voltage (guaranteed
value), without operation in advance.
0,5
3,0
0 20 40 60 70
2,5
2,0
1,5
1,0
1
2
energizing voltage range
ambient temperature °C
DC-relay
AC-relay
coil specifications
standard coils for direct current (other voltages on enquiry)
rated pull-in reset nominal resistance
voltage voltage voltage current Ohm tolerance
VDC at 20 °C at 20 °C mA at 20 °C %
12 9,6 ≥ 0,6 104 115 +/-10
24 19,2 ≥ 1,2 50,0 480 +/-10
48 38,4 ≥ 2,4 25,9 1850 +/-10
110 88,0 ≥ 5,5 12,2 9'000 +/-15
220 176,0 ≥ 11 7,58 29'000 +/-15
standard coils for alternated current (other voltages on enquiry)
VAC
12 9,6 ≥ 0,6 211 13,3 +/-10
24 19,2 ≥ 1,2 104 52 +/-10
48 38,4 ≥ 2,4 55 240 +/-10
110 88,0 ≥ 5,5 23 1'120 +/-10
220 176 ≥ 11,0 12,0 4'450 +/-10
230 184 ≥ 11,5 11,5 5'600 +/-10
UB nominal voltage
UN rated voltage
12 catalog 2002 e / 04.03
SKR-contact specifications
data valid for relay SKR 085
SKR 115
SKR 122
contact material AgCuNi (Ag1,88 Ni0,12)
contact type single contact
nominal switching capacity 250 VAC 10 A AC1 2500 VA
440 VAC 4 A AC1 1600 VA
electric life expectancy app. 700'000 operations
250 VAC 10 A AC1 (360 operations/h)
max. inrush current 40 A for 20 ms
switching current range 30 mA to 10 A
switching power range 0,18 VA to 2500 VA
contact resistance 20 mΩ
AgCuNi single contact
0,6
0,4
0,1
0,3
0,2
0,8
1
2
3 4
6 8
0 50 100 150 200 250
1
2
10
voltage (VDC)
load limit curve for DC
current (A)
1 2
2
106
3 4 5 6 7 8
3
4
5
6
7
8
9 10 A
switching current (A)
number of operations
contact life time
- AC load cos phi 1 (AC1)
- 250 VAC 50 Hz 360 operations/h
1) inductive load, L/R 40 ms
2) resitive load
data valid for relay SKR 085D
SKR 115D
SKR 122D
contact material AgCuNi (Ag1,88 Ni0,12)
contact type double contact
nominal switching capacity 250 VAC 6 A AC1 1500 VA
electric life expectancy app. 150'000 operations
250 VAC 6 A AC1 (360 operations/h)
max. inrush current 15 A für 20 ms
switching current range 10 mA to 6 A
switching power range 0,06 VA to 1500 VA
contact resistance 10 mΩ
AgCuNi double contact
0,6
0,4
0,1
0,3
0,2
0,8
1
2
3 4
6 8
0 50 100 150 200 250
1
2
10
voltage (VDC)
load limit curve for DC
current (A)
1 2
2
105
3 4 5 6 7 8
3
4
5
6
7
8
switching current (A)
number of operations
contact life time
- AC load cos phi 1 (AC1)
- 250 VAC 50 Hz 360 operations/h
1) inductive load, L/R 40 ms
2) resitive load
13
ZKR-PCB socket with accessories
ZKR 003 matching to SKR 122
ZKR 003
order numbers
nominal data max. 10 A 400 V
test voltage 2000 Veff
contact spring material Ms improved
fixing soldering pin 1 x M3
creeping resistance CTI 250
weight app. 7 g
installation situation any
ambient temperature -40 to +85 °C
number of poles 11-pole
protection standard IP 30
general data
accessories
metal clamp
ZKR 008
certificates UL, CSA
insulation group VDE 0110 / group C 250 VAC
tests, instructions
37 5,4
3,5
11
1,0x0,3
38,5
dimensions
10,16 10,16
25,4
37
7,62 5,08
30,48
38,5
1,3
2,5 / 2,54
drilling plan
view from solder side
catalog 2002 e / 04.03
14 catalog 2002 e / 04.03
ZVE11 ZKX118 ZKE118
data
plug-in modules E...
time modules STM 100
metal clamp ZKR008 ZKR008 ZKR008
ZVE8 ZKE088 socket
data
accessories
plug-in modules E...
time module STM 100
metal clamp ZKR008 ZKR008
nominal data 400 VAC 10 A 400 VAC 10 A
dimensions (L x B x H) [mm] 57 x 38 x 28,5 75 x 38 x 26
ambient temperature [°C] -40 to +85 -40 to +85
nominal data 400 VAC 10 A 400 VAC 10 A 400 VAC 10 A
dimensions (L x B x H) [mm] 57 x 38 x 28,5 62 x 38 x 26 75 x 38 x 26
ambient temperature [°C] -40 to +85 -40 to +85 -40 to +85
accessories
SKR-screw socket with accessories
certificates UL, CSA
insulation group VDE 0110 / group C 250 VAC
tests, instructions
15
STM 100
time modules
E...
plug-in modules
data
compatible to socket ZKE088/118
free wheel diode 6 - 220 VDC E 21
RC-circuit 110 - 230 VAC E 51C
varistor 6 - 24 VAC E 71
varistor 6 - 230 VAC E 81
LED 24 - 60 VDC/ VAC E 61EV
LED 110 - 230 VDC/ VAC E 91V
time range 8 ranges: 1s, 10s, 1m, 10m, 1h, 10h, 1d, 10d
time adjustment variable, 5% - 100% of the time range
time function 8 functions, selectable by DIP switches
display green LED for ON-status, blinking at time delay
dimensions B x H x T = 35 x 46,7 x 10,3 mm (without clamp)
weight app. 14 g
permissible ambient temperature -25 to +55 °C
nominal voltage 24V to 240V AC (-15%...+10%) , 24V to 250V DC (-15%...+10%)
frequency 48 Hz to 63 Hz
max. power consumption 24V AC/DC: 70mW , 240V AC/DC: 700mW
min. impulse time (B1) AC: 50ms, DC: 30 ms
min. pause time (B1) AC&DC: 100ms at 25°C, AC&DC: 140ms at 55°C
pull-in delay AC: max. 40ms, DC: 20ms
reset time delay AC&DC: max. 100ms at 25°C, AC&DC: max. 140ms at 55°C
control voltage 24V: min. 80% of supply voltage
230V: min. 95% of supply voltage
time delay after power loss max. 10ms
start-up time 60ms
re-readiness time max. 100ms at 25°C, max. 150ms at 55°C
reset at UN ≤ 10Veff
precision at the scale stops ±0,5%
repeatability <0,5% or 5ms (in % from scale value)
accuracy in adjustment ≤5%
temperature influence ≤0,01% / °C
voltage influence ≤0,001% / V
max. load current 100mA at 25°C
general data
catalog 2002 e / 04.03
data
compatible to socket ZKE088/118
function programmable
time range 0,05s - 240h
rated voltage 24 - 240 VDC/VAC