Product Specifications
Brand: Siemens
Part Number: 7KT1681
Type: 3-Phase Energy Meter
Series: SENTRON 7KT PAC1600
Current Input: 5 A (CT)
Nominal Voltage: 400 V L-L / 230 V L-N
Communication: S0 Pulse Output
Accuracy (Active Energy): Class 0.5s
Display: LCD
Protection Rating: IP40 (front)
Product Description
DIN rail-mountable 3-phase digital energy meter from the SENTRON PAC1600 family. Self-powered via the measured voltage — no external supply needed. Suitable for energy monitoring in infeeds, outgoing feeders, or individual load circuits in industrial and commercial distribution boards.
Key Features
- 5 A CT input with Class 0.5s active energy accuracy (IEC 62053-22 Class B)
- Measures: voltage, current, active/reactive/apparent power, energy, power factor, frequency, THD
- Harmonic analysis up to the 15th harmonic on phase voltages and currents
- S0 pulse output for energy counting via BMS or PLC digital input
- TRMS measurement, CAT III, IP40 front / IP20 rear
- Compact 4U modular housing: 63 × 71.6 × 90 mm (L × W × H)
Technical Specifications
| Parameter | Value |
|---|---|
| Phases | 3-phase (also 1-phase) |
| Current Input | 5 A (via external CT) |
| Nominal Voltage L-L / L-N | 400 V / 230 V AC |
| Frequency | 45–66 Hz (50/60 Hz nominal) |
| Accuracy (Active Energy) | Class 0.5s / Class B |
| Communication | S0 pulse output |
| Measurement Category | CAT III |
| Protection Rating | IP40 (front), IP20 (rear) |
| Mounting | DIN rail (EN 60715) |
| Dimensions (L × W × H) | 63 × 71.6 × 90 mm |
Resources & Documentation
Siemens 7KT1681 SENTRON PAC1600 3-Phase Energy Meter, 5A CT Input, S0 Pulse Output
Product Specifications
Brand: Siemens
Part Number: 7KT1681
Type: 3-Phase Energy Meter
Series: SENTRON 7KT PAC1600
Current Input: 5 A (CT)
Nominal Voltage: 400 V L-L / 230 V L-N
Communication: S0 Pulse Output
Accuracy (Active Energy): Class 0.5s
Display: LCD
Protection Rating: IP40 (front)