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Product Specifications
- Brand
- Siemens
- Part Number
- 3NJ6900-4HF21
- Product Type
- Analogue Panel Ammeter
- Series
- SENTRON 3NJ69
- Measurement Principle
- Moving Iron
- Primary Rated Current
- 200 A
- Secondary Rated Current
- 5 A
- Accuracy Class
- 1
- Rated Burden
- 0.6 VA
- Mounting
- Front Panel, Pluggable
- Voltage Levels
- Up to 690 V AC / 440 V DC
- Overload Capacity
- 2-Fold
Product Description
The Siemens 3NJ6900-4HF21 is a moving-iron analogue panel ammeter for the SENTRON 3NJ6 series of in-line switch disconnectors with fuses. It provides true RMS current indication on a 200 A scale via a 200/5 A current transformer input — the moving-iron / 5 A combination at the 200 A main feeder level, delivering true RMS accuracy through the most widely stocked CT interface standard.
Decision Parameters
| Parameter | Value |
|---|---|
| Measurement Principle | Moving Iron |
| Primary Rated Current | 200 A |
| Secondary Rated Current | 5 A |
| Accuracy Class | 1 |
| Rated Burden | 0.6 VA |
| Overload Capacity | 2-Fold |
Related Products
- Siemens 3NJ6920-3BE22 — High-accuracy 150/5 A Class 0.5 CT for precision measurement on 150 A circuits
- Siemens 3NJ6930-3BD23 — Calibrated 100/5 A CT, ultra-slim 6 mm design for NH1 fuse assemblies
- Siemens 3NJ6900-4HD12 — Bimetal 100/1 A pluggable ammeter for high-inrush 100 A feeders
- Siemens 3NJ6920-3BD13 — Calibrated 100/1 A current transformer for billing-grade energy metering
Siemens
Siemens 3NJ6900-4HF21 Analogue Panel Ammeter, Moving Iron, 200/5 A, Class 1
Moving-iron 200/5 A pluggable ammeter with standard CT for main feeders
MPN/Series: 3NJ6900-4HF21
Product Specifications
- Brand
- Siemens
- Part Number
- 3NJ6900-4HF21
- Product Type
- Analogue Panel Ammeter
- Series
- SENTRON 3NJ69
- Measurement Principle
- Moving Iron
- Primary Rated Current
- 200 A
- Secondary Rated Current
- 5 A
- Accuracy Class
- 1
- Rated Burden
- 0.6 VA
- Mounting
- Front Panel, Pluggable
- Voltage Levels
- Up to 690 V AC / 440 V DC
- Overload Capacity
- 2-Fold








