Stucke Elektronik SYMAP F Control

The Stucke Elektronik SYMAP F Control is a microprocessor-based feeder protection and control relay designed for reliable operation in industrial, marine, offshore, and power generation environments. Developed by Stucke Elektronik GmbH, the SYMAP series is well known for its robust construction, flexible configuration, and dependable protection performance in demanding electrical distribution systems.

The “F” (Feeder) Control variant is specifically engineered to monitor and protect electrical feeder circuits against abnormal operating conditions. It provides comprehensive protection, control, and monitoring functions to ensure safe and uninterrupted power distribution within low- and medium-voltage systems.

Core Functions

The SYMAP F Control performs critical protective and control tasks including:

Overcurrent protection (50/51) – Instantaneous and time-delayed overcurrent detection
Short-circuit protection – Rapid fault identification and breaker trip activation
Earth fault monitoring (50N/51N) – Ground fault detection for enhanced system safety
Breaker control – Trip and close command outputs
Alarm and event signaling – Visual and digital fault indication
Load monitoring – Continuous current measurement and supervision

These functions help prevent equipment damage, minimize downtime, and enhance operational safety.

Technical Characteristics

Microprocessor-based digital protection relay
High measurement accuracy for current and voltage signals
Programmable protection parameters and timing curves
Configurable logic functions for customized applications
Integrated digital inputs and outputs
Communication interface options (commonly RS-485 / Modbus)
Compact panel-mount design for switchgear integration

The device can be configured according to project-specific requirements, making it adaptable to various distribution and automation systems.

Applications

The SYMAP F Control is suitable for:

Marine and shipboard electrical distribution systems
Offshore power installations
Industrial power plants and manufacturing facilities
Generator feeder protection
Motor control centers (MCC)
Utility and substation feeder panels

Its durable electronic design allows stable performance even under harsh environmental conditions such as vibration, humidity, and temperature fluctuations.

Performance & Reliability

Built for continuous-duty operation, the SYMAP F Control offers high operational reliability and long service life. The intelligent protection algorithms ensure fast response times and precise fault isolation, reducing the risk of cascading failures in critical power systems.

Its modular and configurable architecture makes it a preferred solution for engineers seeking a dependable, scalable feeder protection relay with modern communication capability.

Technical Specifications

General

Product Name: SYMAP F Control
Manufacturer: Stucke Elektronik GmbH
Product Type: Digital feeder protection and control relay
Series: SYMAP Feeder Protection

Protection & Control Functions

Overcurrent protection (instantaneous and time-delayed)
Short-circuit fault detection and breaker tripping
Earth fault (ground fault) monitoring
Directional protection options (where configured)
Breaker open/close control outputs
Alarm signaling and status indication
Load current supervision

Electrical & Power

Auxiliary Supply Voltage (selectable):
- 12–36 V DC
- 36–72 V DC
- 80–300 V DC
- 60–230 V AC
Power Consumption: Typically under 30 W
Operating Frequency: Compatible with 50 Hz and 60 Hz power systems

Inputs & Outputs

Current Inputs: For connection to current transformers (CTs)
Voltage Inputs: For phase and ground voltage measurement via voltage transformers (PTs)
Digital Inputs: Multiple inputs for remote signals and statuses
Digital Outputs:
- Trip and close breaker output contacts
- Alarm contact outputs
- Status and auxiliary outputs

Communication & Interfaces

Serial Communication Ports: RS-232 and/or RS-485
Protocols Supported: Modbus (RTU or TCP, depending on configuration)
Optional Interfaces: Can include fieldbus options such as Profibus or CAN (optional expansions)
Remote monitoring and configuration capability via communication interfaces

Mechanical

Design: Panel-mount relay unit
Typical Dimensions: Approximately 192 mm × 192 mm × 110 mm (variation possible depending on exact version)
Weight: Approximately 2.3 kg (typical unit)

Environmental

Operating Temperature: –20 °C to +70 °C
Storage Temperature: –40 °C to +70 °C
Humidity: Up to 80 % relative humidity (non-condensing)
Protection Rating:
- Front panel: IP54
- Terminal area: IP10

Performance & Diagnostics

High-speed digital fault detection and trip logic
Event Logging: Stores protection events with timestamps
Internal Self-Diagnostics: Monitors device health and input signal quality
Adjustable Settings: Protection thresholds, trip curves, timers, logic functions

Application Use Cases

Feeder protection in industrial power distribution
Marine and offshore electrical protection systems
Power generation and distribution plants
Motor control centers (MCC) and substations
Backup protection and control in automated systems

Key Features Summary

✔ Digital microprocessor-based protection and control
✔ Flexible configuration and setting options
✔ Integrated measurement, protection, and control in a single unit
✔ Communication support for remote supervision
✔ Rugged design for harsh electrical environments