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Our three-phase/single-phase meters are capable of high-precision electrical measurement and offer exceptional value for money. They feature a compact design, easy installation, and flexible functionality. The display can be configured with either an LED or LCD screen. In addition to standard measurement functions, they can be configured to include digital I/O, various communication protocols, analog transmitter outputs, and energy pulse outputs, among other options. Customized features are also available to meet specific customer requirements, ensuring we deliver products and services that satisfy our clients.
Technical Specifications
| Item | Specifications for Single-Phase Digital Meters | Specifications for Three-Phase Digital Meters | |
| Connection Type | Direct Connection | Three-phase four-wire, | |
| Three-phase three-wire | |||
| Working Voltage | AC/DC85~265V/AC220V | ||
| Input voltage | rated voltage | AC100/220/380V | 3X100/220/380V |
| Overload Capacity | Continuous: 1.2x, Instantaneous: 2x, 1S | ||
| Frequency | 50HZ±10% | ||
| Power Consumption | <3VA | ||
| Output voltage | Rated Current | 1A(1mA-1.2A),5A(5mA-6A) | |
| Overload Capacity | Continuous: 1.2x, Instantaneous: 10x, 5S | ||
| Accuracy | voltage、current | 0.2 | |
| Transmitter Outputs | 0.5 | ||
| Fuction | Communications | RS485/Modubus-RTU | |
| Digital Inputs | Supports 2 dry contact inputs | ||
| Digital Outputs | Supports 2 relay outputs, rated at: AC 250 V/5 A, DC 30 V/5 A | ||
| Transmitter Outputs | Supports 1 analog output: 0/4–20 mA | ||
| Environment | Working environment | temperature：-20~55℃ | |
| Storage environment | temperature：-20~70℃ temperature<90%RH,No condensation | ||
Display Meter Selection List
| Three-phase digital meter models | Single-phase digital meter models | Cutout dimensions | Battery Level Measurement | Optional Feature | |||||||
| Voltage | Current | Active power | Reactive power | Apparent power | 485 Communication | Digital Inputs | Digital Outputs | Analog Transmitters | |||
| S70-300B-U | S70-100B-U | 67*67 | ■ | □ | □ | □ | □ | ||||
| S70-300B-I | S70-100B-I | ■ | □ | □ | □ | □ | |||||
| S70-300B-UI | S70-100B-UI | ■ | ■ | □ | □ | □ | □ | ||||
| S70-300B-P | S70-100B-P | ■ | ■ | ■ | ■ | ■ | □ | □ | □ | □ | |
| S80-300B-U | S80-100B-U | 76*76 | ■ | □ | □ | □ | □ | ||||
| S80-300B-I | S80-100B-I | ■ | □ | □ | □ | □ | |||||
| S80-300B-UI | S80-100B-UI | ■ | ■ | □ | □ | □ | □ | ||||
| S80-300B-P | S80-100B-P | ■ | ■ | ■ | ■ | ■ | □ | □ | □ | □ | |
| S90-300B-U | S90-100B-U | 92*92 | ■ | □ | □ | □ | □ | ||||
| S90-300B-I | S90-100B-I | ■ | □ | □ | □ | □ | |||||
| S90-300B-UI | S90-100B-UI | ■ | ■ | □ | □ | □ | □ | ||||
| S90-300B-P | S90-100B-P | ■ | ■ | ■ | ■ | ■ | □ | □ | □ | □ | |
| S120-300B-U | S120-100B-U | 111*111 | ■ | □ | □ | □ | □ | ||||
| S120-300B-I | S120-100B-I | ■ | □ | □ | □ | □ | |||||
| S120-300B-UI | S120-100B-UI | ■ | ■ | □ | □ | □ | □ | ||||
| S120-300B-P | S120-100B-P | ■ | ■ | ■ | ■ | ■ | □ | □ | □ | □ | |
Ps:
1. In the table above, the symbol indicates that the unit is equipped with this feature; a blank space indicates that the feature is not available; and "□" indicates that the feature is optional. Please contact us for details. For example, S90-100A-U/C indicates a model equipped with an LCD screen and communication capabilities.
2. The models listed in the table above all feature digital displays; standard models ending in "A" are also available with LCD displays.
3. For optional features, model numbers are distinguished by adding a suffix to the original model number, as follows: K—digital input; J—relay digital output; C—RS-485 communication; 0—analog transmitter output
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2026-07-15
2026-07-14
