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Safety relays, protection relays
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Differential relay / security / distance / relay - 1/3 x 19 - 2/1 x 19 in | 7SL87
The combined differential and distance protection 7SL87 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system.
Due to its high...
Due to its high...
Differential relay / security / distance / relay - 1/3 x 19 - 2/1 x 19 in | 7SL87
The combined differential and distance protection 7SL87 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system.
Due to its high flexibility, it is suitable as selective protection equipment for overhead lines and cables with single- and multiended infeeds of all lengths with up to 6 ends. Transformers and compensating coils in the protection zone are also possible. The device is delivered with the aforementioned number of analog and binary inputs and outputs. Apart from that, the device supports all SIPROTEC 5 system characteristics. It enables futureoriented system solutions with high investment security and low operating costs.
Due to its high flexibility, it is suitable as selective protection equipment for overhead lines and cables with single- and multiended infeeds of all lengths with up to 6 ends. Transformers and compensating coils in the protection zone are also possible. The device is delivered with the aforementioned number of analog and binary inputs and outputs. Apart from that, the device supports all SIPROTEC 5 system characteristics. It enables futureoriented system solutions with high investment security and low operating costs.
Security relay / centralized busbar - 7SS85
The centralized busbar protection SIPROTEC 7SS85 is a selective, safe, and fast protection against busbar short circuits in medium voltage, high-voltage and very high...
Security relay / centralized busbar - 7SS85
The centralized busbar protection SIPROTEC 7SS85 is a selective, safe, and fast protection against busbar short circuits in medium voltage, high-voltage and very high voltage systems with the most various busbar configurations.
Busbar protection devices SIPROTEC 7SS85 are part of the modular SIPROTEC 5 series and their main function bases on the principle of differential protection.
Additional protection and control functions extend the scope of application to a comprehensive station protection.
The flexibility of the functions and the modular hardware structure allow an optimum adaptation of the 7SS85 to the most various system configurations and functional requirements.
Busbar protection devices SIPROTEC 7SS85 are part of the modular SIPROTEC 5 series and their main function bases on the principle of differential protection.
Additional protection and control functions extend the scope of application to a comprehensive station protection.
The flexibility of the functions and the modular hardware structure allow an optimum adaptation of the 7SS85 to the most various system configurations and functional requirements.
Differential relay / security / transformer - 1/3 x 19 in | 7UT82
The transformer differential protection SIPROTEC 7UT82 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system. It...
Differential relay / security / transformer - 1/3 x 19 in | 7UT82
The transformer differential protection SIPROTEC 7UT82 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system. It is especially designed for the protection two winding transformers. It is the main protection for the transformer and contains many other protection and monitoring functions. The additional protection functions can also be used as backup protection for protected downstream objects (e.g. cables, line).
The device supports all SIPROTEC 5 system characteristics. It enables future-oriented system solutions with high investment security and low operating costs.
The device supports all SIPROTEC 5 system characteristics. It enables future-oriented system solutions with high investment security and low operating costs.
Security relay / distance - 7 Hz | 7SA63
The SIPROTEC 7SA6 distance protection relay is a universal relay for protection, control and automation with a grafic display on the basis of the SIPROTEC 4 system.
Its high level of flexibility makes it suitable to be implemented...
Its high level of flexibility makes it suitable to be implemented...
Security relay / distance - 7 Hz | 7SA63
The SIPROTEC 7SA6 distance protection relay is a universal relay for protection, control and automation with a grafic display on the basis of the SIPROTEC 4 system.
Its high level of flexibility makes it suitable to be implemented at all voltage levels. With this relay you are ideally equipped for the future: it offers security of investment and also saves on operating costs.
High-speed tripping time
Impedance setting range allows very small settings for the protection of very short lines
Self-setting detection for power swing frequencies up to 7 Hz
Current transformer saturation detector prevents non-selective tripping by distance protection in the event of CT saturation.
Phase-segregated teleprotection for improved selectivity and availability
Digital relay-to-relay communication by means of an integrated serial protection data interface
Adaptive auto-reclosure (ADT)
Its high level of flexibility makes it suitable to be implemented at all voltage levels. With this relay you are ideally equipped for the future: it offers security of investment and also saves on operating costs.
High-speed tripping time
Impedance setting range allows very small settings for the protection of very short lines
Self-setting detection for power swing frequencies up to 7 Hz
Current transformer saturation detector prevents non-selective tripping by distance protection in the event of CT saturation.
Phase-segregated teleprotection for improved selectivity and availability
Digital relay-to-relay communication by means of an integrated serial protection data interface
Adaptive auto-reclosure (ADT)
Security relay / distance - 7 Hz | 7SA64
The SIPROTEC 7SA6 distance protection relay is a universal relay for protection, control and automation with a grafic display on the basis of the SIPROTEC 4 system. Its high level of flexibility makes it suitable to be implemented...
Security relay / distance - 7 Hz | 7SA64
The SIPROTEC 7SA6 distance protection relay is a universal relay for protection, control and automation with a grafic display on the basis of the SIPROTEC 4 system. Its high level of flexibility makes it suitable to be implemented at all voltage levels. With this relay you are ideally equipped for the future: it offers security of investment and also saves on operating costs.
High-speed tripping time
Impedance setting range allows very small settings for the protection of very short lines
Self-setting detection for power swing frequencies up to 7 Hz
Current transformer saturation detector prevents non-selective tripping by distance protection in the event of CT saturation.
Phase-segregated teleprotection for improved selectivity and availability
Digital relay-to-relay communication by means of an integrated serial protection data interface
Adaptive auto-reclosure (ADT)
High-speed tripping time
Impedance setting range allows very small settings for the protection of very short lines
Self-setting detection for power swing frequencies up to 7 Hz
Current transformer saturation detector prevents non-selective tripping by distance protection in the event of CT saturation.
Phase-segregated teleprotection for improved selectivity and availability
Digital relay-to-relay communication by means of an integrated serial protection data interface
Adaptive auto-reclosure (ADT)
Arc protection system - AFDD
Established technology
Reliable tripping in the event of a fault
Comprehensive protection concept based on an application related combination of devices
Integrated overvoltage protection for...
Reliable tripping in the event of a fault
Comprehensive protection concept based on an application related combination of devices
Integrated overvoltage protection for...
Arc protection system - AFDD
Established technology
Reliable tripping in the event of a fault
Comprehensive protection concept based on an application related combination of devices
Integrated overvoltage protection for enhanced safety for people and assets
Current introduction of the serviceproven technology on the IEC market
In North America, detectors for arcing faults have long been specified in the standards and are widely used. With its AFDD, Siemens is currently pioneering the introduction of this technology on the IEC market so that customers here can also benefit from comprehensive protection. Extensive laboratory and field tests ensure that sources of operational interference such as power drills, dimmers and vacuum cleaners are reliably distinguished from hazardous arcing faults.
Reliable tripping in the event of a fault
Comprehensive protection concept based on an application related combination of devices
Integrated overvoltage protection for enhanced safety for people and assets
Current introduction of the serviceproven technology on the IEC market
In North America, detectors for arcing faults have long been specified in the standards and are widely used. With its AFDD, Siemens is currently pioneering the introduction of this technology on the IEC market so that customers here can also benefit from comprehensive protection. Extensive laboratory and field tests ensure that sources of operational interference such as power drills, dimmers and vacuum cleaners are reliably distinguished from hazardous arcing faults.
Emergency stop relay - 5TT5
EMERGENCY-STOP circuits are mainly for safety protocols for all laboratory devices and industrial parts. These modules meet the most critical demands with high consideration...
Emergency stop relay - 5TT5
EMERGENCY-STOP circuits are mainly for safety protocols for all laboratory devices and industrial parts. These modules meet the most critical demands with high consideration for reliability and functionality with a self-monitoring capability. The Machine Directive 98/37/EC, valid from 31.2.1994, only specifies global safety standards. It also has an LED for the operation thus providing consistent information on the specific state. Including Compliance with the regulations according to EC Machine Directive 98/37/EC supports a high safety standard for those working in plants. The safety category 4 to EN 954-1 expands the application options in many fields and meets requirement standards.
Security relay / electrical line - 2 - 20 VA | 5TT3
Line circuit relays are widely used in cases of no active loads to interrupt circuits and prevent electromagnetic fields in circuits. During disconnected loads, only 2 to 20 VA usage is measured by the line circuit relay. As a result,...
Security relay / electrical line - 2 - 20 VA | 5TT3
Line circuit relays are widely used in cases of no active loads to interrupt circuits and prevent electromagnetic fields in circuits. During disconnected loads, only 2 to 20 VA usage is measured by the line circuit relay. As a result, the line circuit relay disconnects the cable to the supply voltage and switches over to extra-low voltage. When the loads are reconnected, the increase in usage is detected by the line circuit relay and switches back to the supply voltage.
The line circuit relay just switches off any unnecessary system components, and does not ensure a device for safe disconnection. The line circuit relay does not possess the capacity to detect consumers with electronic power supply units, e.g. electronically controlled vacuum cleaners. Such equipment can be practically connected to a base load resistor (PTC resistor) and enable the line circuit relay is reset to supply voltage.
The line circuit relay just switches off any unnecessary system components, and does not ensure a device for safe disconnection. The line circuit relay does not possess the capacity to detect consumers with electronic power supply units, e.g. electronically controlled vacuum cleaners. Such equipment can be practically connected to a base load resistor (PTC resistor) and enable the line circuit relay is reset to supply voltage.
Thermistor relay / security - 3.2 - 3.8 kΩ | 5TT3
Thermistor Motor Protection Relays averts the thermal engines overload and has up to 6 thermistors series that can be supervised and monitored. A conductor...
Thermistor relay / security - 3.2 - 3.8 kΩ | 5TT3
Thermistor Motor Protection Relays averts the thermal engines overload and has up to 6 thermistors series that can be supervised and monitored. A conductor break is placed in the sensor conductor and is made to easily trip the equipment. It can be utilized for supervising the wound quick-break switches such as bi-metal thermostats. An all-around engine security is being supplied by this device as well. It supervises and observes the wounds of the engines. It comes in 2 green or red LEDs which are ready to be lit in case of fault. It's remote reset is more than A1/A2 or more than X1/X2.
Electromechanical relay / thermal protection - -25 °C ... +60 °C | Txx series
Thermal overload relays are economic electromechanical protection devices for the main circuit. They offer reliable protection for motors in the event of overload...
Electromechanical relay / thermal protection - -25 °C ... +60 °C | Txx series
Thermal overload relays are economic electromechanical protection devices for the main circuit. They offer reliable protection for motors in the event of overload or phase failure. Starter combinations are setup together with block contactors and mini contactors.
The thermal overload relays are three pole relays with bimetal tripping elements. The motor current flows through the bimetal tripping elements and heats them directly and indirectly. In case of an overload (over current), the bimetal elements bent as a result of the heating. This leads to a release of the relay and a change of the contacts switching position (95-96 / 97-98).
The thermal overload relays are three pole relays with bimetal tripping elements. The motor current flows through the bimetal tripping elements and heats them directly and indirectly. In case of an overload (over current), the bimetal elements bent as a result of the heating. This leads to a release of the relay and a change of the contacts switching position (95-96 / 97-98).
Arc protection system - 100 - 240 V, 50 - 60 Hz | TVOC-2 series
TVOC-2, ABBs latest Arc Monitor, builds on the well known TVOC design. Its new functions and features improve an already great product, putting even more focus on reliability, flexibility...
Arc protection system - 100 - 240 V, 50 - 60 Hz | TVOC-2 series
TVOC-2, ABBs latest Arc Monitor, builds on the well known TVOC design. Its new functions and features improve an already great product, putting even more focus on reliability, flexibility and simplicity.
Arc Guard System™ protects people and equipment, and eliminates unnecessary production stops. Arc monitor type TVOC-2 is ABBs state-of-the-art solution for arc fault protection in all applications, providing functional safety.
With over 35 years of experience, Arc Guard System™ has become an industry standard in several key markets, helping to protect personnel and businesses around the world.
Typical applications include all low- and medium-voltage switchgears.
Arc Guard System™ protects people and equipment, and eliminates unnecessary production stops. Arc monitor type TVOC-2 is ABBs state-of-the-art solution for arc fault protection in all applications, providing functional safety.
With over 35 years of experience, Arc Guard System™ has become an industry standard in several key markets, helping to protect personnel and businesses around the world.
Typical applications include all low- and medium-voltage switchgears.
Protection relay / adjustable / with time-delayed output - 24 V | CM-KRN
· 2 c/o (SPDT) contacts
· Single-supply voltage range
· ON-delay (0.05-30 s) adjustable...
· Single-supply voltage range
· ON-delay (0.05-30 s) adjustable...
Protection relay / adjustable / with time-delayed output - 24 V | CM-KRN
· 2 c/o (SPDT) contacts
· Single-supply voltage range
· ON-delay (0.05-30 s) adjustable...
· Single-supply voltage range
· ON-delay (0.05-30 s) adjustable...
Thermistor relay / protection / motor - 250 V, 4 A | CM-MSE series
The thermistor motor protection relays CM-MSE, CM-MSS and CM-MSN are used to control motors equipped with PTC temperature sensors. The PTC temperature sensors are incorporated in...
Thermistor relay / protection / motor - 250 V, 4 A | CM-MSE series
The thermistor motor protection relays CM-MSE, CM-MSS and CM-MSN are used to control motors equipped with PTC temperature sensors. The PTC temperature sensors are incorporated in the motor windings to measure the motor heating. This enables direct control and evaluation of various operating conditions. Depending on the products also ATEX approvals for use in hazardous areas are availabe.
ABB also offers PTC temperature sensors C011 (according to DIN 44081) which are suitable for embedding in motor windings.
CM-MSE single function thermistor motor protection relay
The single function relays are equipped with 1 n/o output contact in a 22.5 mm wide enclosure and they are supplied with a single voltage range.
ABB also offers PTC temperature sensors C011 (according to DIN 44081) which are suitable for embedding in motor windings.
CM-MSE single function thermistor motor protection relay
The single function relays are equipped with 1 n/o output contact in a 22.5 mm wide enclosure and they are supplied with a single voltage range.
Thermistor relay / protection / monitoring / short-circuit - 250 V, 4 A | CM-MSS series
Depending on the device refences with 1 c/o (SPDT) contact, 2 x 1 c/o (SPDT) contact, 2 c/o (SPDT) contacts or 1 n/c + 1 n/o contact are available. Products can be selected...
Thermistor relay / protection / monitoring / short-circuit - 250 V, 4 A | CM-MSS series
Depending on the device refences with 1 c/o (SPDT) contact, 2 x 1 c/o (SPDT) contact, 2 c/o (SPDT) contacts or 1 n/c + 1 n/o contact are available. Products can be selected with wide- or single-supply voltage range, short-circuit monitoring of the sensor circuit, front-face test and reset button, Non-volatile storage configurable, 1- or 2-channel evaluation or accumulative evaluation, up to 3 sensor circuits. As for all products in the S-range assortment LEDs for status indication are included in the 22.5 mm wide housing with integrated and snap-fitted front-face marker. As accessories sealable transparent cover and adapter for screw mounting can be ordered.