Technical Specifications
Main protection for generator and generator-transformer units
Fully configurable functionality for application-specific needs
Extensive protection, scalable hardware for demanding applications
All-in-one solution: protection, control, monitoring, supervision
Large integrated or detached HMI with configurable push buttons
Life-cycle service support
Generator differential protection, 3rd harmonic stator earth-fault, reverse power protection
Wide interconnection protection for distributed generation
Optional RTD/mA module: 8 RTD/mA inputs + 4 mA outputs
IEC 61850 Ed.1 with GOOSE messaging
Communication protocols: DNP3 (TCP/IP), IEC 60870-5-103
Supervises important control circuits: circuit-breakers, disconnectors, and signalling circuits
One relay per circuit; multiple relays can supervise branched circuits
Designed for COMBIFLEX system
Supply voltage range: 40–265 V DC
Continuous monitoring to prevent undetected faults
Preset operate time avoids unwanted alarms during circuit-breaker operation
LED indicator on the front panel shows relay operation
Detects bad contact, contact welding, and auxiliary voltage failures
For rail- or surface-mounted options, see SPER 1B1 C4
Centralized protection and control in one device
Station-wide visibility for efficient process management
Wide application coverage with optimal cost-effectiveness
Fully modular software for lifetime flexibility
Fast and cost-effective substation upgrade path
Designed for advanced substation digitalization
IEC 61850-compliant communication and interoperability
Supports up to 30 bays
Protection for feeders, transformers, motors, busbars, capacitor banks
Web-based HMI with station-level control
Disturbance recordings for the entire substation
IEC 61850-3 certified; built-in redundancy and self-supervision
Digital services covering the entire lifecycle
Continuous monitoring of trip circuits and other essential control circuits
One relay per circuit; multiple relays can supervise branched circuits
Standard 11-pin plug-in unit with corresponding terminal socket for rail mounting
Preset operate time to prevent unwanted alarms during circuit-breaker operation
LED indicator on front panel shows relay operation
Detects bad contacts, contact welding, and auxiliary voltage failures
Available in COMBIFLEX design (see SPER 1C1 and SPER 1C2)
Power range: 0.25 to 22 kW
Voltage range: up to 480 V (more variants coming)
Enclosure class: IP20 & UL Type 1
EMC filter class: C2
Ethernet connectivity for commissioning & remote access
Supports induction, PM, and synchronous reluctance motors
Cybersecurity features: secure boot, signed firmware, regulation-ready for 2027 Machinery Regulation
Side-by-side mounting, spring terminals, simplified wiring
USB-C and Ethernet for fast commissioning
Integrated Safe Torque Off (STO)
Designed for precise speed & torque control for cyclic, time-critical applications
