Current transformers, Rogowski coils, energy meters, measuring instruments and grid protection made in Germany
CELSA Messgeräte GmbH
Römerberg (DE)New on Amplifa
About CELSA Messgeräte
CELSA Messgeräte GmbH manufactures current transformers and measurement technology in Römerberg for industry and energy supply. The product range includes slip-on and wound current transformers, clamp-on and conversion current transformers, protection and summation current transformers, Rogowski coils, energy meters, digital and analogue measuring instruments, operating hour counters, measuring transducers, shunts as well as the CEL-NA-S grid and plant protection relay. Transformer production has taken place in Germany since 2020; in 2022 the company started production of Rogowski coils with PTB type approval. Materials include Elastollan and PA6 (UL 94 V-0) for coil and housing parts as well as tinned copper for shield and signal cables. Customers come from switchgear construction, industrial plants, building technology, power generation and supply, water supply, wind power, solar energy and electrical wholesale; deliveries are made worldwide. In addition to standard products, the company develops customised special measurement technology solutions and supports customers with selection assistants, calculators and technical support within 24 hours.
- Site
- Römerberg
- Processes
- Manufacture of current transformers (slip-on, wound, clamp-on/conversion, protection and summation, Manufacture of Rogowski coils (RALO D95/D140/D190), Manufacture of grid and plant protection relay CEL-NA-S (voltage, frequency, ROCOF/vector shift and, Manufacture of energy meters (DMC100, DMC6, ECM6, ECM80, WECM40, WECM80; MID, Modbus/M-Bus/LoRa/KNX), Manufacture of digital measuring instruments (M series, 48x24 to 96x48 mm, inputs for Pt100/Pt1000,, Manufacture of analogue measuring instruments (ammeters, voltmeters; moving coil, moving iron,, Manufacture of operating hour counters (BZ48/BZ72/BZ96, AC/DC, IP52/IP65), Manufacture of measuring transducers (universal isolating amplifier DTVU20, active power transducer
- Materials
- Elastollan, PA6 (UL 94 V-0), Copper (tinned, shield/signal cable), Copper (tinned)
- Certificates
- ISO 9001:2015, ISO 9001:2015 (TÜV SÜD), CE conformity, PTB type approval (EAST, Rogowski coil)
- Founded
- 1940
- Industries
- Switchgear construction, Industrial plants, Building technology, Power generation and supply, Water supply, Wind power
- 01
Development and engineering
- 02
Transformer and coil manufacturing in Römerberg
- 03
Testing and calibration/verification
- 04
Sales and technical support
- 05
Returns and complaint management
Materials & Processes
Elastollan
Material of the Rogowski coils for flexible, iron-core-free measuring loops.
PA6 (UL 94 V-0)
Flame-retardant housing material of the Rogowski coils according to UL 94 V-0.
Copper (tinned)
Tinned copper for shield and signal cables of the Rogowski coils.
Sites
Römerberg
DEHeadquarters, manufacturing and sales
- Materials
- Plastic, copper
- Transformer production (since 2020)
- Rogowski coil production (since 2022)
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of current transformers (slip-on, wound, clamp-on/conversion, protection and summationEngineering | – | – | – | – | Copper, Plastic |
| Manufacture of Rogowski coils (RALO D95/D140/D190)Engineering | Linearity error ±0.2 %; phase error ±0.5 % | 600 mm (coil length D190) | – | – | Elastollan, PA6 UL 94 V-0, Copper (tinned shield and signal cables) |
| Manufacture of grid and plant protection relay CEL-NA-S (voltage, frequency, ROCOF/vector shift andEngineering | – | – | – | – | – |
| Manufacture of energy meters (DMC100, DMC6, ECM6, ECM80, WECM40, WECM80; MID, Modbus/M-Bus/LoRa/KNX)Engineering | – | – | – | – | – |
| Manufacture of digital measuring instruments (M series, 48x24 to 96x48 mm, inputs for Pt100/Pt1000,Engineering | – | – | – | – | – |
| Manufacture of analogue measuring instruments (ammeters, voltmeters; moving coil, moving iron,Engineering | Class 1.5 / 3 | – | – | – | – |
| Manufacture of operating hour counters (BZ48/BZ72/BZ96, AC/DC, IP52/IP65)Engineering | – | – | – | – | – |
| Manufacture of measuring transducers (universal isolating amplifier DTVU20, active power transducerEngineering | – | – | – | – | – |
| Manufacture of shunts (Form A/B/C, 60–300 mV, class 0.5)Engineering | Class 0.5 | – | – | – | – |
| Development of customised special measurement technology solutions according to customerEngineering | – | – | – | – | – |
| Verification capability/conformity-assessed measurements (verified current transformers, PTB typeTesting | Accuracy classes 0.2 / 0.2S / 0.5 / 0.5S / 1 / 3 | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Transformer production | CELSA Messgeräte | – | – | 2020 (Wand | Römerberg |
Additional services
Quality
CELSA Messgeräte is certified to ISO 9001:2015 by TÜV SÜD. Verified current transformers, PTB type approvals (EAST, Rogowski coil) and accuracy classes from 0.2/0.2S to 3 ensure measurement accuracy.
| Evidence | Römerberg |
|---|---|
| ISO 9001:2015 (TÜV SÜD) | |
| CE conformity | |
| PTB type approval (EAST, Rogowski coil) |
History
- 1940
Foundation
- 1967
Transformer sales in Spain
- 1983
Sales in Germany begin
- 2019
Denis Eckstädt takes over as CEO
- 2020
Transformer production in Germany
- 2021
EAST type approval
- 2022
Rogowski coil production with PTB connection