Image may differ from the actual product. Current sensors · Accuenergy
Accuenergy AcuCT Flex Rogowski current sensor
Flexible, rope-like Rogowski current coil for high-precision AC current measurement (5 A to 50,000 A). Essential where space is tight or rigid-core current transformers won't fit: it wraps around irregularly shaped conductors in crowded panels or switchgear without breaking the circuit. Does not saturate beyond its rated value and responds quickly to current fluctuations. Used as the current sensor on the Accuenergy Acuvim-L's 333 mV input for compressed-air energy audits.
On request Price on request. Configuration, installation and shipping depend on the project. The quote prevails.
- Brand
- Accuenergy
Ordering matrix
- Size (window)
- 16 · 24 · 36 · 47 — coil length in inches, sets the max conductor Ø
- Rated current
- 200 · 500 · 1000 · 2500 · 5000 · 10000 · 50000 (A) — or Custom (custom ratio)
- Cable length
- blank = 2 m (standard) · 5M · 10M · 25M · 50M
- Options
- BNC (connector) · ET (extended temperature) · IP68 (environmental protection) — stackable
Technical specifications
Rated current
- Current range
- 5 A – 50,000 A AC
- Measurement accuracy
- IEC 61869-10 classe 0,5 · IEEE C57.13 classe 0,6
- Protection accuracy
- IEC 61869-10 classe 5P50kA
- Overrange
- 120% of rated value (each RCT reads 20% above its rated current)
Output (mV/kA ratio)
- Output type
- voltage (mV), input/output ratio and length fully customizable per project
- Standard outputs (per 1000 A)
- 100 mV · 40 mV · 25 mV · 10 mV — see calibration table below
- Operation
- requires no external power or integrator with Accuenergy meters
Mechanical & environmental
- Form factor
- flexible rope-like coil
- Housing material
- orange thermoplastic rubber, UL 94V-0 flame retardant
- Coil (cable) diameter
- 0,61" (15,5 mm)
- Standard lead wire length
- 2 m (6.5 ft) — 5/10/25/50 m optional
- Lead wires
- 1000V UL Style 20940, 26AWG
- Operating temperature
- −20 to 70 °C (−4 to 158 °F) · −45 to 125 °C (−49 to 257 °F) with "ET" option
- Temperature drift
- ± 0.007%/°C (datasheet, March 2026 — see discrepancy note at top of file)
- Operating humidity
- 0 to 95% RH, non-condensing
- Protection (installation conditions)
- IP61 standard · IP68 optional
Electrical
- Wire polarity
- white = positive · brown = negative · bare = shield
- Phase orientation
- the latch arrow points toward the load
- Frequency range
- 45–65 Hz
- Frequency response
- 10 Hz – 20 kHz
Safety & compliance
- Working voltage
- 1000 V CAT III · 600 V CAT IV
- Dielectric strength
- 7400 Vac @ 50/60 Hz for 1 minute
- Certifications
- CE · RoHS · cURus (E359521)
Wiring & installation
- Safe installation
- up to 1000 V without additional insulation; above that, busbar insulation is recommended
- Shield
- must remain floating — do NOT ground
- Cable extension
- up to 50 m max. via butt splice, recommended gauge 18-26 AWG
- Meter programming
- the ordered RCT rated current must be programmed into the meter (Acuvim-L, Acuvim II, AcuRev 1310/2100)
Models
| Model | Window (max cond. Ø) | External diameter | Coil length | |
|---|---|---|---|---|
| RCT16 | 106 mm (4.17") | 143 mm (5.63") | 400 mm (15.75") | |
| RCT24 | 178 mm (7.01") | 207 mm (8.13") | 600 mm (23.62") | |
| RCT36 | 271 mm (10.67") | 302 mm (11.89") | 900 mm (35.43") | |
| RCT47 | 369 mm (14.53") | 398 mm (15.66") | 1200 mm (47.24") | |
Calibration table (mV/kA output)
| Rated current | Output/1000 A @60 Hz | Output/1000 A @50 Hz | Calibrated range |
|---|---|---|---|
| 200 A | 600 mV | 500 mV | 1–240 A |
| 500 A | 240 mV | 200 mV | 2.5–600 A |
| 1,000 A | 120 mV | 100 mV | 5–1200 A |
| 2,500 A | 48 mV | 40 mV | 12.5–3000 A |
| 5,000 A | 24 mV | 20 mV | 25–6000 A |
| 10,000 A | 12 mV | 10 mV | 50–12000 A |
| 50,000 A | 2,4 mV | 2 mV | 250–60,000 A |
| Custom | output of any ratio, contact Accuenergy | — |
"xx" = coil size (16/24/36/47). Performance and range may vary with non-Accuenergy devices.
Configuration options
- BNC connector quick, secure and reliable connection to devices; ring-lock locking mechanism
- Extended temperature rating (ET) continuous performance from −45 to 125 °C (−49 to 257 °F) without sacrificing accuracy
- IP68 environmental protection protects electrical components from dust, dirt and water (sealed enclosure) in harsh conditions
Accessories
- RCT GRIP Kit — RCT GRIP Kit (guaranteed installation) firmly holds the coil in place for correct alignment around the conductor; prevents shifting, ensures optimal accuracy and long-term stability (revenue-grade metering); reduces strain on the coil. Sold separately — price to be confirmed.
Compliance — Compliance and certifications to be confirmed with Onyx M3 depending on application and jurisdiction.
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