Specifications are subject to change without notice (25.06.99)
1
Namur amplifier relay for in-
ductive or capacitive Namur
proximity switches. Single
amplifier, set-reset functions.
Short circuit and cable failure
monitoring. Mounting socket
type S 411.
Housing
Output type
Power supply
Types SD 110, SD 210, SD 270
Namur Amplifier Relays
Proximity Sensors Inductive
· According to DIN 19 234
· SD 110/210: Amplifier with relay output
· SD 270: Set/reset amplifier with relay output for 2
proximity switches
· Power supply to proximity switch 8.2 VDC/1 k
· Galvanically separated output relay
· Load: 10 A SPDT or 8 A DPDT relay
· LED-indication for output ON
· AC or DC power supply
Namur Amplifier Relay
Set-reset Amplifier
for 2 Namur Proximity Switches
Plug
Supply
10 A SPDT relay
8 A DPDT relay
8 A DPDT relay
Circular
24 VAC
SD 110 024
SD 210 024
SD 270 024
115 VAC
SD 110 115
SD 210 115
SD 270 115
230 VAC
SD 110 230
SD 210 230
SD 270 230
24 VDC
SD 110 724
SD 210 724
SD 270 724
SD110
SD210, SD270
Output
SPDT relay
DPDT relay
Rated insulation voltage
250 VAC (rms)
250 VAC (rms)
(cont./elec.)
(cont./elec.,
cont./cont.)
Contact ratings (AgCdO)
µ (micro gap)
µ (micro gap)
Resistive loads
AC1
10 A/250 VAC
8 A/250 VAC
(2500 VA)
(2000 VA)
DC1
1 A/250 VDC
0.4 A/250 VDC
(250 W)
(100 W)
or
10 A/25 VDC
4 A/25 VDC
(250 W)
(100 W)
Small inductive loads AC15 2.5 A/230 VAC
2.5 A/230 VAC
DC13 5 A/24 VDC
5 A/24 VDC
Mechanical life
30 x 10
6
op.
30 x 10
6
op.
Electrical life
AC 1
2.5 x 10
5
op.
2.5 x 10
5
op.
(at max. load)
Operating frequency
7200 op./h
7200 op./h
Dielectric strength
Dielectric voltage
2 kVAC (rms)
2 kVAC (rms)
(cont./elec.) (cont./elec.)
Rated impulse withstand
voltage
4 kV (1.2/50 µs)
4 kV (1.2/50 µs)
(cont./elec.)
(cont./elec.)
(IEC 60664)
(IEC 60664)
SD110, SD210
SD270
Inputs
1
2
Proximity switch voltage
8.2 VDC
8.2 VDC
Proximity switch current
- activated
1.2 mA
1.2 mA
- not activated
2.1 mA
2.1 mA
Internal resistance
1 k
1 k
Operating frequency
10 Hz
10 Hz
Pulse time
20 ms
20 ms
Connection cable
Unshielded
Unshielded
- max. resistance
50
50
Product Description
Ordering Key
Type Selection
Input Specifications
Output Specifications
SD 110 024
2
Specifications are subject to change without notice (25.06.99)
Indication for
Output ON
LED, red
Environment
Degree of protection
IP 20 B
Pollution degree
2 (IEC 60664)
Operating temperature
-20° to +50°C (-4° to +122°F)
Storage temperature
-50° to +85°C (-58° to +185°F)
Weight
AC types
200 g
DC types
125 g
Approvals
UR, CSA
CE-marking
Yes
SD 110, SD 210, SD 270
Mode of Operation
SD x10
Example 1
The relay operates when the
proximity switch is activated.
The relay releases automatical-
ly in case of interruption or
short-circuit of proximity switch
or cable.
Example 2
The relay operates when the
proximity switch is inactive.
The relay operates in case
of short-circuit of proximity
switch or cable.
SD 270
The set-reset relays SD 270 are
used with 2 proximity switches
in the following way:
The relay operates when
proximity switch S1 is activat-
ed momentarily and sub-
sequently remains on. When
proximity switch S2 is acti-
vated momentarily or the
power supply is interrupted,
the relay releases.
If both proximity switches are
activated at the same time,
S2 has priority and the relay
therefore releases.
Wiring Diagrams
Power supply
SD 110/210
Power supply
SD 110/210
Power supply
SD 270
Dimensions
Socket
S 411
Hold down spring
HF
Mounting rack
SM 13
Socket cover
BB 4
Front mounting bezel FRS 2
SD x10
Power supply
Proximity switch
Cable breakdown
Example 1: Relay
Example 2: Relay
SD 270
Power supply
Proximity switch S1
Proximity switch S2
Relay
Example 2
Example 1
Supply Specifications
General Specifications
Accessories
Operation Diagrams
Power supply AC types
Overvoltage cat. III (IEC 60664)
Rated operational volt. 230
230 VAC ± 15%, 50 to 60 Hz
Through pins 2 & 10
115
115 VAC ± 15%, 50 to 60 Hz
024
24 VAC ± 15%, 50 to 60 Hz
Voltage interruption
40 ms
Dielectric voltage
2 kVAC (rms) (supply/elec.)
Rated impulse withstand volt. 2 kV (1.2/50 µs) (line/neutral)
Power supply DC types
Overvoltage cat. III (IEC 60664)
Rated operational volt. 724
24 VDC ± 15%
Dielectric voltage
None
Rated impulse withstand volt. 800 V (1.2/50 µs)
Rated operational power
AC supply
2.5 VA
DC supply
1.5 W
PDF 
ZIP