Schleicher relays

Measurement & Monitoring Devices

A high level of equipment availability plays a crucial role in efficiency. All machine facilities should be fitted with rapid-response measuring and monitoring devices that continuously review and evaluate all electrical and physical states. This facilitates a quick and accurate response in the event of an error, for example proactive switch-off of the affected part of the system before the damage spreads to other unit components.

The Schleicher range of measurement and monitoring relays includes devices for all potential configurations.

SUM 1001

Voltage measuring relay

Voltage measuring relay
  • For failing to meet and for exceeding the threshold value of single-phased voltages
  • operating ranges AC/DC: 0.5 to 500 V
  • Curve shape: sine, square, triangle

SIM 1001

Current measuring relay

Current measuring relay
  • For falling below or exceeding the limit value of single-phased currents
  • 2 versions, each with three operating ranges from AC/DC 2 to 500 mA and/or 0.1 to 15 A
  • Curve shape: sine, square, triangle

SXT 12

Voltage- or current-measuring relay

Basic unit for emergency stop and guard door applications
  • For falling below or exceeding the limit value of single-phased currents or voltages
  • Response value in Ratio 1 : 10 adjustable
  • Fallback value (from 50 to 95 % of the response value) adjustable

SXT 32

Voltage- or current-measuring relay

Basic unit for emergency stop and guard door applications
  • For falling below or exceeding the limit value of single-phased currents or voltages
  • Response value in Ratio 1 : 10 adjustable
  • Fallback value (from 50 to 95 % of the response value) adjustable

SUW 1001

Direct or alternating voltage monitor without auxiliary voltage

Direct or alternating voltage monitor without auxiliary voltage
  • For single-phase networks
  • Large setting range and large operating range
  • Adjustable maximum and minimum limit

SAM 1001

Three-phase unbalanced – phase sequence – phase failure relays

Three-phase unbalanced – phase sequence – phase failure relays
  • Detection of incorrect phase sequence
  • Detection of the failure of one or more phases
  • Recognition of voltage feedback in the event of phase failure

SPW 1004

Alternating current phase sequence-phase error relay without auxiliary voltage

Alternating current phase sequence-phase error relay without auxiliary voltage
  • Detection of incorrect phase sequence
  • Detection of phase-voltage asymmetry
  • Phase failure detection, also for reverse polarity voltage with and without phase offset

SPW 1005

Alternating current phase sequence-phase error relay without auxiliary voltage

Alternating current phase sequence-phase error relay without auxiliary voltage
  • Detection of incorrect phase sequence
  • Detection of phase-voltage asymmetry
  • Phase failure detection, also for reverse polarity voltage with and without phase offset

SAP 1002

Alternating current phase sequence relay without auxiliary voltage

Alternating current phase sequence relay without auxiliary voltage
  • Detection of incorrect phase sequence
  • Standby current circuitry
  • Contact allocation: SAP 1002 1 changer, SAP 1003 2 changers

SAP 1003

Alternating current phase sequence relay without auxiliary voltage

Alternating current phase sequence relay without auxiliary voltage
  • Detection of incorrect phase sequence
  • Standby current circuitry
  • Contact allocation: SAP 1002 1 changer, SAP 1003 2 changers

SUW 3001

Alternating current voltage monitor without auxiliary voltage

Alternating current voltage monitor without auxiliary voltage
  • Low voltage detection of one, two or all three phases
  • Low voltage detection of 285 to 360 V adjustable
  • Phase failure detection of one, two or all three phases

SBW 1004

Low load recognition of electric motors without additional pickup sensor

Low load recognition of electric motors without additional pickup sensor
  • Alternating current and AC current mains
  • Startup bridging time adjustable
  • With and without error memory

SBW 1005

Low load recognition of electric motors without additional pickup sensor

Low load recognition of electric motors without additional pickup sensor
  • Alternating current and AC current mains
  • Startup bridging time adjustable
  • With and without error memory

SBW 1007

Overload recognition of electric motors without additional pickup sensor

Overload recognition of electric motors without additional pickup sensor
  • Alternating current and AC current mains
  • Startup bridging time adjustable
  • With and without error memory

SMS 1002

Motor protection relay/Temperature monitor for cold line connector

Motor protection relay/Temperature monitor for cold line connector
  • 1 monitoring circuit for PTC thermistor according to DIN EN 60947-8
  • Break and short monitoring of the sensor line
  • without fault memory, contact assembly 1 contact

SMS 1002-101

Motor protection relay/Temperature monitor for cold line connector

Motor protection relay/Temperature monitor for cold line connector
  • 1 monitoring circuit for PTC thermistor according to DIN EN 60947-8
  • Break and short monitoring of the sensor line
  • without fault memory, contact assembly 1 contact

SMS 1005

Motor protection relay/Temperature monitor for cold line connector

Motor protection relay/Temperature monitor for cold line connector
  • 1 monitoring circuit for PTC thermistor according to DIN EN 60947-8
  • Break and short monitoring of the sensor line
  • with fault memory, Reset button or reset via the supply voltage, contact assembly 2 contact

SMS 1006

Motor protection relay/temperature monitor for cold line connector with reclosing block

Motor protection relay/temperature monitor for cold line connector with reclosing block
  • 1 monitoring circuit for PTC thermistor according to DIN EN 60947-8
  • Fault memory with Reset button, no reset via supply voltage
  • With reclosing block

STW 1101

Temperature monitor for thermal resistance Pt 100

Temperature monitor for thermal resistance Pt 100
  • Temperature setting range 0 to +799 °C
  • Hysteresis adjustable
  • STW 1101 with operating current principle

STW 1102

Temperature monitor for thermal resistance Pt 100

Temperature monitor for thermal resistance Pt 100
  • Temperature setting range 0 to +799 °C
  • Hysteresis adjustable
  • STW 1102 with standby current principle

STW 1001

Temperature monitor for thermal element NiCr-Ni

Temperature monitor for thermal element NiCr-Ni
  • Temperature setting range 0 to + 999 °C
  • Hysteresis adjustable
  • STW 1001 with operating current principle

STW 1002

Temperature monitor for thermal element NiCr-Ni

Temperature monitor for thermal element NiCr-Ni
  • Temperature setting range 0 to + 999 °C
  • Hysteresis adjustable
  • SSTW 1002 with standby current principle

SST 12

Contact protection relay

Contact protection relay
  • Supply voltage and control circuit galvanically separated
  • Operate time and fallback delay, adjustable 0.05 to 1 s
  • 2 changer

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