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System (line and load) monitoring relay
Rated operational current: 30 A and 50 AACrms
Zero switching for heating and motor applications
Rated operational voltage: 230, 400 and 480 VACrms
Transient overvoltage protection built-in
Alarm output signal
LED-indication for alarm and supply/relay ON
DIN-rail mountable
Product Description
The system monitoring
Solid State Relay (Sense
Relay) provides an alarm
output in the event of a cir-
cuit failure. Internal circuits
monitor:
- line voltage
- load current
- correct functioning of the SSR
- SSR input status
The relay is designed for
applications where immedi-
ate fault detection is required.
A red LED indicates an
alarm, a green LED indicates
DC control supply OK (half
LED light intensity) resp.
relay switched ON (full LED
light intensity).
Ordering Key
Solid State Relay
Number of poles
Rated operational voltage
Control input
Rated operational current
Alarm output type
RN 1S 23 H 30 NO
Type Selection
Rated operational
voltage
23: 230 VACrms
40: 400 VACrms
48: 480 VACrms
Control input
H: Active high
L: Active low
Rated operational
current
30: 30 AACrms
50: 50 AACrms
Alarm output
type
NO: NPN, NO
NC: NPN, NC
PO: PNP, NO
PC: PNP, NC
Selection Guide
Rated
operational
voltage
230 VACrms
Alarm
output
type
NPN, NO
NPN, NC
PNP, NO
PNP, NC
NPN, NO
NPN, NC
PNP, NO
PNP, NC
NPN, NO
NPN, NC
PNP, NO
PNP, NC
Rated operational current
30 AACrms
30 AACrms
Active high
Active low
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
1S23H30NO
1S23H30NC
1S23H30PO
1S23H30PC
1S40H30NO
1S40H30NC
1S40H30PO
1S40H30PC
1S48H30NO
1S48H30NC
1S48H30PO
1S48H30PC
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
1S23L30NO
1S23L30NC
1S23L30PO
1S23L30PC
1S40L30NO
1S40L30NC
1S40L30PO
1S40L30PC
1S48L30NO
1S48L30NC
1S48L30PO
1S48L30PC
50 AACrms
Active high
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
1S23H50NO
1S23H50NC
1S23H50PO
1S23H50PC
1S40H50NO
1S40H50NC
1S40H50PO
1S40H50PC
1S48H50NO
1S48H50NC
1S48H50PO
1S48H50PC
50 AACrms
Active low
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
RN
1S23L50NO
1S23L50NC
1S23L50PO
1S23L50PC
1S40L50NO
1S40L50NC
1S40L50PO
1S40L50PC
1S48L50NO
1S48L50NC
1S48L50PO
1S48L50PC
400 VACrms
480 VACrms
Specifications are subject to change without notice (30.06.1999)
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