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Control Relays
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Rhomberg control relays cover various control functions such as contact switching for proximity & photo-electric sensors, speed monitoring and control, thermistor motor protection, and flip flop control. A small range of power supply relays are included in this range. (Available in 11-pin plug-in and/or DIN rail format).
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RO2
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Photoelectric (Opto-electronic) Sensors.
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For use with Rhomberg SC410 relays
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![](../images/RO2.jpg)
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Features
- Separate transmitters and receivers, or transmitter & receiver in one unit
- Interface directly to optional Rhomberg monitoring relay SC410.
- Target or space sensing
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SC300
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Switching Amplifier Relay for Namur Sensors
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Mains switching according to Namur sensor status
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![](../images/SC300.jpg)
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Features
- 11-pin plug-in.
- Fail-to-safe design.
- Programmable: target response, space response.
- Direct interface with Rhomberg & other Namur sensors (DIN 19234).
- Sensor or cable fault detection and indication.
- Cost effective sensor and relay replacement.
- Impervious to interference between sensor and amplifier over long cable runs
- High noise immunity.
- 10A SPDT or 5A DPDT relay output.
- Requires optional S3-B 11-pin base.
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SC314
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Switching Relay for DC PNP or NPN Sensors
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Mains switching according to DC sensor status
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![](../images/SC314.jpg)
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Features
- 11-pin plug-in.
- Direct interface with all 3-wire PNP or NPN DC sensors (inductive, capacitive and opto-electronic/ photo-electric).
- LED indication of relay status.
- Cost efficient interface with DC sensors.
- Impervious to outside interference.
- 10A SPDT relay output.
- Requires optional S3-B 11-pin base.
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SC320
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Tachometer Relay Pulse input via Namur sensor or via potential-free contact
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Overspeed or Underspeed monitoring, control and/or protection
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![](../images/SC320.jpg)
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Features
- 11-pin plug-in.
- Fail-to-safe design.
- Programmable for overspeed or underspeed monitoring.
- Programmable speed ranges: 10RPM to 10 000RPM.
- Speed setpoint adjustable on calibrated scale (10 to 100%).
- Pulse frequency to current conversion (0-1mA).
- Direct interface with Rhomberg & other Namur two-wire proximity sensors.
- Low power sensor signal to DIN 19234.
- Sensor or cable fault indication.
- Fixed start-up delay 10 sec.
- LED indication of Sensing, Relay ON and cable fault.
- 10A SPDT relay output.
- Requires optional S3-B 11-pin base.
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Data Sheet
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SC410
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Opto-electronic Control Relay for Rhomberg RO2 Photo-electric sensors
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Proximity or Barrier Infra-red sensing and switching
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![](../images/SC410.jpg)
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Features
- 11-pin plug-in.
- Direct interface with Rhomberg RO2 Photo-electric sensor range.
- Programmable: dark or light response.
- Adjustable: delayed ON up to 5s, delayed OFF up to 5s, transmit light intensity.
- Signal modulated beam to stop foreign light source interference.
- High speed solid state transistor output.
- Direct interface for solid state relays.
- 10A SPDT relay output
- Sensor or cable fault detection and indication.
- Requires optional S3-B 11-pin base.
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SC501
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Temperature Control Relay
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Monitoring Temperature for High or Low Conditions (or for basic ON/OFF control)
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![](../images/SC501.jpg)
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Features
- 11-pin plug-in.
- Interface to standard PT100 sensors
- Separately adjustable trip and recovery points
- Selectable for Over-Temperature or Under-Temperature monitoring
- LED indication of Relay ON and Sensor fault
- Latching facility.
- 10A SPDT relay output.
- Requires optional S3-B 11-pin base.
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SC510
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Thermistor Motor Protection Relay - Auto Reset
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Detects overheating of equipment using a PTC sensor
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![](../images/SC510.jpg)
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Features
- 11-pin plug-in.
- Fail-to-safe design.
- Interfaces with DIN 44081 standard PTC sensors.
- Sensor or cable fault detection and indication with automatic relay de-energisation for failsafe operation.
- 10A SPDT relay output.
- Requires optional S3-B 11-pin base.
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SC511
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Thermistor Motor Protection Relay - Auto Reset or Manual Reset
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Detects overheating of equipment using a PTC sensor
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![](../images/SC511.jpg)
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Features
- 11-pin plug-in.
- Fail-to-safe design.
- Interfaces with DIN 44081 standard PTC sensors.
- Sensor or cable fault detection and indication with automatic relay de-energisation for failsafe operation.
- Latching facility.
- Test button.
- Manual reset button.
- 10A SPDT relay output.
- Requires optional S3-B 11-pin base.
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SC610
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Flip Flop Relay Without Memory
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Potential free contact input
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![](../images/SC610.jpg)
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Features
- 11-pin plug-in.
- Many power supply options.
- Direct interface with potential free contact or 3 wire DC NPN sensor.
- LED indication of relay status.
- Power on indication.
- 10A SPDT or 5A DPDT relay output.
- Requires optional S3-B 11-pin base.
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SC611
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Flip Flop Relay With Memory
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Potential free contact or NPN sensor input
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![](../images/SC611.jpg)
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Features
- 11-pin plug-in.
- Many power supply options.
- Direct interface with potential free contact or 3 wire DC NPN sensor.
- Retention of output state after loss of power.
- LED indication of relay status.
- Power on indication.
- 10A SPDT or 5A DPDT relay output.
- Requires optional S3-B 11-pin base.
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SC900
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Power Supply Module 12 up to 525 VAC input 12, 24 or 36 VDC output
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![](../images/SC900.jpg)
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Features
- 11-pin plug-in.
- Ease of use due to 11 pin plug-in concept.
- High input voltage ranges.
- Large variety of output supply options.
- Cost effective power supply unit.
- Requires optional S3-B 11-pin base.
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