UNITRO / Unitro-Fleischmann fault annunciator systems and indicator panels

German fault annunciator systems, alarm indicator panels, C3 telecontrol bus modules, and industrial power supplies by UNITRO / Unitro-Fleischmann.

UNITRO / Unitro-Fleischmann SVE DIN rail fault annunciator modules

Compact SVE-6, SVE-8, and SVE-LP series modules snap onto standard DIN rails to monitor discrete alarm inputs across power plants. Units deliver integrated signal latching and horn acknowledge sequences compliant with ISA-18.1 and DIN 19235 standards reliably.

Monitoring of 6 to 32 discrete digital alarm inputs across substation panels
Integrated acknowledge sequence logic for horn silencing and visual alerts
High electrical isolation between input lines and central power supply loops
Configurable common alarm relay contacts for remote SCADA automation links

UNITRO / Unitro-Fleischmann FSB front panel alarm display annunciators

Flush-mounting FSB series annunciators and FR indicators mount directly into electrical cabinet doors. Featuring multi-color RGB LEDs offering five distinct hues, customizable text inserts, and rapid hardware event resolution down to 1 millisecond precision.

Matrix configurations with 8, 16, 24, and 40 illuminated window displays
Parameter configuration via USB and NFC interfaces using engineering tools
Ultra-fast pulse detection resolution starting from 1 millisecond intervals
Rugged front panel assembly rated IP54 for demanding industrial switchboards

UNITRO / Unitro-Fleischmann CC24plus compact fault annunciator stations

Compact CC24plus alarm stations and STZ wall assemblies combine 24-channel annunciator windows, microprocessor event processing, and integrated battery-backed UPS. Systems support external sirens, dialer communication, and automated event log archiving.

Visual indication of 24 technological fault inputs with two flash speeds
Integrated battery power buffer circuit with deep discharge safety shutoff
Automated telephone voice dialer and SMS notification for operating staff
Wall-mounted protective enclosure rated IP52 for harsh substation locations

UNITRO / Unitro-Fleischmann C3 telecontrol and distributed bus modules

The modular C3 telecontrol platform combines digital and analog I/O modules with advanced bus interfaces including LON, EtherCAT, and powerline transmission over 230/400 V grids. It enables robust supervisory control across distributed utility installations.

Twisted-pair LON communication links reaching up to 2.7 km span lengths
Powerline data coupling across 3 phases on 230/400 V grids up to 30 km range
Isolated analog input channels supporting standard 0-10 V and 4-20 mA ranges
Direct interconnection with plant SCADA environments and Modbus networks

UNITRO / Unitro-Fleischmann ZFM 2378 19-inch event recording systems

Subrack-mounted ZFM 2378 eurocard units record and sequence up to 512 alarm inputs across large power generation sites. The architecture assigns millisecond-precise timestamps to all incoming fault signals, enabling fault reconstruction across utilities.

Standard 19-inch subrack form factor with 6HE height and 20TE card width
High-resolution event recording with sequence timestamps down to 1 ms
Seamless integration into SISSYpro substations with USB log retrieval
Dedicated interlock relay cards designed for switchgear error simulation

UNITRO / Unitro-Fleischmann DSP power supply and UPS buffer units

Switched-mode DSP10, DSP30, DSP100 power supplies and C3 buffer modules provide stabilized 24 V DC power for industrial annunciator electronics. Units feature universal input voltage capability, short-circuit protection, and dynamic battery management.

Rated output current of 0.42A (DSP10), 1.3A (DSP30), and 4.2A (DSP100) at 24V
Universal AC input acceptance from 100V to 240V for diverse utility grids
Uninterruptible buffer modules preserving control voltage during outages
Slim DIN rail mount profile saving valuable space inside control panels

ISA-18.1 and DIN 19235 alarm annunciator sequence standards in UNITRO modules

UNITRO-Fleischmann Störmeldesysteme manufactures industrial fault annunciator equipment in strict compliance with international ISA-18.1 and DIN 19235 standards.

SVE DIN rail modules and FSB front displays incorporate standardized alarm sequences featuring independent visual and audible acknowledge functions. Upon detecting a technological fault, the corresponding indicator initiates rapid flashing while energizing an external warning horn.

When the plant operator triggers the horn acknowledge input, the acoustic alarm silences, and the indicator transitions to steady illumination until the underlying process fault is rectified. This structured protocol prevents overlooked critical events across power substations.

Millisecond sequence of events recording for power generation utilities

Across electrical power generating stations and primary distribution substations, recording the exact sequence of events during tripping transients is vital for grid reliability.

UNITRO-Fleischmann ZFM 2378 eurocard assemblies and SISSYpro substation systems deliver sequence of events recording with hardware timestamp resolution down to 1 millisecond.

Each binary input line undergoes continuous high-speed microcontroller polling, generating an immutable time-stamped record upon any transition. Robust optical isolation barriers eliminate spurious tripping caused by inductive switching spikes in protection circuits.

The archived log buffer transfers directly to SCADA systems for detailed post-fault reconstruction.

Distributed telecontrol networking via LON bus, EtherCAT, and powerline channels

The modular C3 telecontrol architecture by UNITRO-Fleischmann addresses distributed supervisory control and data acquisition across geographically dispersed industrial facilities.

The platform supports standard twisted-pair LON free-topology networking across cable distances extending up to 2.7 km without intermediate line repeaters.

For installations where dedicated data cabling is impractical, specialized coupling units transmit bidirectional signals across 3-phase 230/400 V power distribution wiring within the CENELEC C-Band spectrum up to 30 km.

Integrated EtherCAT and Modbus interfaces ensure seamless real-time data exchange with programmable logic controllers and SCADA servers.

Multi-color RGB LED technology and parameter programming for FSB display panels

Flush-mounted FSB series display panels provide high-visibility status annunciation on control cabinet doors. Each illuminated window features multi-color RGB LEDs allowing software assignment of five distinct indication colors based on priority: red, green, yellow, blue, or white.

Custom identification legends are printed onto durable transparent film inserts protected by anti-glare diffuser sheets.

Operational parameters including input debounce delays, flash frequencies, and relay output behaviors are configured through a built-in USB port or integrated NFC interface using dedicated engineering software tools.

Industrial power supply modules and uninterruptible 24 V DC buffer units

Continuous operation of mission-critical annunciator systems relies on the integrity of secondary DC power distribution. Switched-mode DSP10, DSP30, and DSP100 power supplies convert line voltage into stabilized 24 V DC with high electrical efficiency and short-circuit protection.

Operating alongside capacitive buffer modules and C3-USV battery storage units, the architecture sustains continuous control power during severe voltage drops or complete AC mains interruptions.

Intelligent monitoring electronics continuously evaluate battery internal resistance, providing early preventive maintenance warnings.

Cabinet layout guidance, routine maintenance, and replacement selection

When integrating UNITRO / Unitro-Fleischmann components into control enclosures, engineers should segregate power distribution wiring from low-voltage signal conduits to prevent electromagnetic coupling.

DIN rail modules require a minimum ventilation clearance of ten millimeters to promote natural convection cooling. Scheduled preventive maintenance involves inspecting terminal screw torque, testing rechargeable battery capacities, and cleaning enclosure ventilation slots.

When identifying replacement units for aging equipment, providing a photograph of the original nameplate with part numbers ensures accurate technical matching.

UNITRO / Unitro-Fleischmann and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of UNITRO / Unitro-Fleischmann and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.