Overview
The Yokogawa 103402FCAD7 power factor meter is a precision switchboard instrument engineered to measure power factor in three-phase AC electrical systems. Power factor meters measure the ratio of real power flowing to the load compared to apparent power in the circuit, and can detect both linear and non-linear loads whether they are lag or lead conditions. The AB40 series provides direct panel mounting and clear analog indication of power factor across a .5 lag to 1 to .5 lead scale.
Key Features
- Water-tight construction with shock-resistant pivot and jewel movement
- ANSI-C39.1 accuracy class 1 specification with rugged design in 4.5-inch switchboard case
- 3-phase 3-wire and 4-wire configuration support for balanced circuit measurements
- LED illuminated versions available in red and white
- Accuracy of ±1% of fiducial value from 40-120% of rated current
- 50/60 Hz operation for global industrial applications
Technical Specifications
The 103402FCAD7 delivers precision measurement in demanding industrial environments:
- Input Rating: 5A, 120V
- Configuration: 3-Phase 3-Wire & 4-Wire
- Frequency: 50/60 Hz
- Scale: .5 LAG – 1 – .5 LEAD
- Accuracy: ±1% of fiducial value (40-120% rated current)
- Case Size: 4.5 inches switchboard mount
- Weight: 1.03 kg
- Construction: Water-tight, shock-resistant pivot
Typical Applications
The AB40 power factor meter is widely deployed in:
- Industrial power distribution systems monitoring and load analysis
- Electrical system optimization and power quality assessment
- Three-phase motor and equipment load evaluation
- Switchboard panel integration for real-time power factor indication
- Commercial facility electrical efficiency audits and diagnostics
Compatibility & Replacements
Compatible With
- Three-phase AC electrical systems (3-wire and 4-wire configurations)
- 50 Hz and 60 Hz power supplies
- Standard switchboard panel mounting systems
- Current transformer (CT) secondary circuits rated 5A
- Voltage transformer (VT) secondary circuits rated 120V
Replaces / Drop-In Replacement For
The AB40 series includes different configurations; verify specific model compatibility before ordering. This model (3P 3W & 4W balanced) replaces other AB40 power factor meters in the same configuration class. Always cross-reference your existing meter part number with documentation before replacement.
Works With
- Standard panel-mounted instrument infrastructure
- Current transformers and voltage transformers (industry standard)
- Industrial control systems and power distribution equipment
- Power quality and electrical diagnostic equipment




