S1PN 550-690VAC 2c/o Product number: 890220

S1WP 9A 110-230VAC/DC UM 0-550VACDC Ts=0 Product number: 890071

S1WP 9A 110-230VAC/DC UM 0-415VAC/DC Product number: 890060

S1WP 9A 24VDC UM 0-550VAC/DC Product number: 890030

S1WP 9A 24VDC UM 0-415VAC/DC Product number: 890020

S1EN 50KOhm 24-240VAC/DC Product number: 884100

S1MS Ex 24VAC/DC 2c/o Product number: 839775

S1MS Ex 230VAC 2c/o Product number: 839760

S1MS Ex 110VAC 2c/o Product number: 839740

S1MS Ex 48VAC 2c/o Product number: 839725

S1MO Ex 230VAC 2c/o Product number: 839650

S1MO Ex 24VAC/DC 2c/o Product number: 839600

S1MN Ex 230VAC 2c/o Product number: 839415

S3UM 230VAC UM 400/440VAC Product number: 837370 The S3UM voltage monitoring relay is used to monitor overvoltage and undervoltage as well as the phase sequence in 3-phase supplies. Unit features - Monitors supplies with and without neutral conductors - Trip device for undervoltage and overvoltage - Evaluates phase sequence - Detects asymmetry - Detects phase failure - Reaction time can be set to up to 10 s - Operates to normally energised or normally de-energised mode Description The voltage monitoring relay is enclosed in an S-95, slimline housing. Various versions are available for AC and DC operation. Features - Relay outputs: 1 auxiliary contact (C/O) - 2 measuring circuits - Undervoltage value can be set from 75 % to 100 % of the rated mains voltage or from 40 % to 100 % (unit type) - Overvoltage value can be set from 100 % to 120 % of the rated mains voltage - Fault status can be latching or nonlatching - LED as supply voltage indicator - LED for all faults: phase sequence error, under/overvoltage - Phase failure is detected even when there is voltage feedback from connected loads - Range switching 10 % for L1-L3 - Separate supply voltage A1-A2

S3UM 24VDC UM 400/440VAC Product number: 837270 The S3UM voltage monitoring relay is used to monitor overvoltage and undervoltage as well as the phase sequence in 3-phase supplies. Unit features - Monitors supplies with and without neutral conductors - Trip device for undervoltage and-overvoltage - Evaluates phase sequence - Detects asymmetry - Detects phase failure - Reaction time can be set to up to 10 s - Operates to normally energised or normally de-energised mode Description The voltage monitoring relay is enclosed in an S-95, slimline housing. Various versions are available for AC and DC operation. Features - Relay outputs: 1 auxiliary contact (C/O) - 2 measuring circuits - Undervoltage value can be set from 75 % to 100 % of the rated mains voltage or from 40 % to 100 % (unit type) - Overvoltage value can be set from 100 % to 120 % of the rated mains voltage - Fault status can be latching or nonlatching - LED as supply voltage indicator - LED for all faults: phase sequence error, under/overvoltage - Phase failure is detected even when there is voltage feedback from connected loads - Range switching 10 % for L1-L3 - Separate supply voltage A1-A2              

S3UM 24VDC UM 230VAC Product number: 837260 The S3UM voltage monitoring relay is used to monitor overvoltage and undervoltage as well as the phase sequence in 3-phase supplies. Unit features - Monitors supplies with and without neutral conductors - Trip device for undervoltage and overvoltage - Evaluates phase sequence - Detects asymmetry - Detects phase failure - Reaction time can be set to up to 10 s - Operates to normally energised or normally de-energised mode Description The voltage monitoring relay is enclosed in an S-95, slimline housing. Various versions are available for AC and DC operation. Features - Relay outputs: 1 auxiliary contact (C/O) - 2 measuring circuits - Undervoltage value can be set from 75 % to 100 % of the rated mains voltage or from 40 % to 100 % (unit type) - Overvoltage value can be set from 100 % to 120 % of the rated mains voltage - Fault status can be latching or nonlatching - LED as supply voltage indicator - LED for all faults: phase sequence error, under/overvoltage - Phase failure is detected even when there is voltage feedback from connected loads - Range switching 10 % for L1-L3 - Separate supply voltage A1-A2

S1UM 230-240VAC UM 0.1-500VAC/DC UP Product number: 827265 The S1UM voltage monitoring relay is used to monitor min. or max. voltage values. Unit features - 12 measuring ranges 0.1 V ... 500 V, selectable - Reaction time can be set to up to 10 seconds - Detects AC/DC voltage values automatically - Normally energised or normally deenergised mode - Galvanic isolation between measuring and supply voltage - S1UM UP version: measuring inputs are not polarity-sensitive Description - The voltage monitoring relay is enclosed in an S-95 slimline housing. - There are 8 versions available for AC operation and one for DC operation. Features - Relay outputs: 1 auxiliary contact (C/O) - 3 measuring circuits for 1 V, 20 V and 500 V, each with 4 different ranges - Response value can be set from 20 % to 100 % of the measuring range limit value - Hysteresis can be set from 0.6 to 0.95 x Uon - Fault status can be latching or nonlatching - LEDs for relay's switch status and for supply voltage - The S1UM monitors for voltage values exceeding a threshold limit. On the S1UM UP version, the measuring inputs are not polarity-sensitive. If the measuring voltage reaches the set response value Uon, auxiliary contact 11-14 changes over and the LED lights. If the measuring voltage falls below the hysteresis value Uoff and automatic reset is selected, the auxiliary contact changes over again and the LED goes out. The unit is ready for operation again. If faults are latched, the unit will not be ready for operation again until an external reset button is operated or the supply voltage has been switched off and then on again.

S1UM 230-240VAC UM 0.1-500VAC/DC Product number: 827260 The S1UM voltage monitoring relay is used to monitor min. or max. voltage values. Unit features - 12 measuring ranges 0.1 V ... 500 V, selectable - Reaction time can be set to up to 10-seconds - Detects AC/DC voltage values automatically - Normally energised or normally deenergised mode - Galvanic isolation between measuring and supply voltage - S1UM UP version: measuring inputs are not polarity-sensitive Description - The voltage monitoring relay is enclosed in an S-95 slimline housing. - There are 8 versions available for AC operation and one for DC operation. Features - Relay outputs: 1 auxiliary contact (C/O) - 3 measuring circuits for 1 V, 20 V and 500 V, each with 4 different ranges - Response value can be set from 20 % to 100 % of the measuring range limit value - Hysteresis can be set from 0.6 to 0.95 x Uon - Fault status can be latching or nonlatching - LEDs for relay's switch status and for supply voltage - The S1UM monitors for voltage values exceeding a threshold limit. On the S1UM UP version, the measuring inputs are not polarity-sensitive. If the measuring voltage reaches the set response value Uon, auxiliary contact 11-14 changes over and the LED lights. If the measuring voltage falls below the hysteresis value Uoff and automatic reset is selected, the auxiliary contact changes over again and the LED goes out. The unit is ready for operation again. If faults are latched, the unit will not be ready for operation again until an external reset button is operated or the supply voltage has been switched off and then on again.

S1UM 24VDC UM 0.1-500VAC/DC UP Product number: 827225 The S1UM voltage monitoring relay is used to monitor min. or max. voltage values. Unit features - 12 measuring ranges 0.1 V ... 500 V, selectable - Reaction time can be set to up to 10 seconds - Detects AC/DC voltage values automatically - Normally energised or normally deenergised mode - Galvanic isolation between measuring and supply voltage - S1UM UP version: measuring inputs are not polarity-sensitive Description The voltage monitoring relay is enclosed in an S-95 slimline housing. There are 8 versions available for AC operation and one for DC operation. Features - Relay outputs: 1 auxiliary contact (C/O) - 3 measuring circuits for 1 V, 20 V and 500 V, each with 4 different ranges - Response value can be set from 20 % to 100 % of the measuring range limit value - Hysteresis can be set from 0.6 to 0.95 x Uon - Fault status can be latching or nonlatching - LEDs for relay's switch status and for supply voltage - The S1UM monitors for voltage values exceeding a threshold limit. On the S1UM UP version, the measuring inputs are not polarity-sensitive. If the measuring voltage reaches the set response value Uon, auxiliary contact 11-14 changes over and the LED lights. If the measuring voltage falls below the hysteresis value Uoff and automatic reset is selected, the auxiliary contact changes over again and the LED goes out. The unit is ready for operation again. If faults are latched, the unit will not be ready for operation again until an external reset button is operated or the supply voltage has been switched off and then on again.