SIMPSON ELECTRIC

SIMPSON ELECTRIC, established in 1907 and headquartered in Lac du Flambeau, Wisconsin, is a manufacturer of electrical measurement and control instruments. The company’s product line includes analog and digital panel meters, shunts, current transformers, and related accessories. These components are used to measure and display electrical parameters such as voltage, current, frequency, temperature, and power in industrial control panels, switchgear, and test equipment. SIMPSON ELECTRIC panel meters are available in various form factors, including the Hawk 3, Mini-Max, and A200/A201 series, with display spans up to 9,999 counts and accuracy ratings ranging from ±0.1% to ±1% of reading. Digital models offer features such as True RMS measurement, RS-485 communication, and red LED displays with high contrast for readability in low-light environments. Analog panel meters are supported by external portable shunts and switchboard shunts, which provide DC current measurement capability with standard 50 mV voltage drops and include 5 ft leads for flexible installation. Split core current transformers, such as the 37035 model, enable non-invasive AC current monitoring with a maximum primary current of 1,000 A and a rectangular window shape for accommodating bus bars or cables. SIMPSON ELECTRIC products are built to meet industrial standards for accuracy, durability, and safety, with IP ratings and operating temperature ranges suitable for panel-mount applications. 3G Electric stocks over 64 SKUs of SIMPSON ELECTRIC panel meters, shunts, and transformers, providing datasheets and logistics support for global procurement. This inventory covers a range of input types—AC/DC voltage, current, temperature, and process signals—ensuring compatibility with common industrial control systems. Engineers and maintenance managers can select from models with screw terminals, plug-in connectors, or RS-485 interfaces for integration into existing monitoring networks. The availability of both digital and analog options allows for straightforward replacement or upgrade of legacy meters without redesigning panel layouts.

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Aplikasi Umum

Industrial control panels — SIMPSON ELECTRIC A201 multi-function digital panel meters for monitoring AC voltage and current with RS-485 communication.
Switchgear monitoring — SIMPSON ELECTRIC switchboard shunts (e.g., 06508) for DC current measurement in high-current distribution systems.
Portable test equipment — SIMPSON ELECTRIC external portable shunts (e.g., 06713) for field measurement of DC currents up to 200 A.
Temperature monitoring in HVAC — SIMPSON ELECTRIC Hawk 3 temperature digital panel meters for displaying RTD or thermocouple readings.
Power quality analysis — SIMPSON ELECTRIC Mini-Max DC voltage digital panel meters for measuring battery bank voltages in UPS systems.
Retrofit current monitoring — SIMPSON ELECTRIC split core current transformers (e.g., 37035) for non-invasive AC current sensing in existing bus bars.

Pertanyaan yang Sering Diajukan

Pertanyaan umum tentang SIMPSON ELECTRIC dari 3G Electric.

What accuracy specifications are available for SIMPSON ELECTRIC digital panel meters?

SIMPSON ELECTRIC digital panel meters offer accuracy ratings that vary by series and model. For example, the A201 series provides ±1% accuracy, while the Hawk 3 series achieves ±0.2% of reading ±2 counts. The Mini-Max series offers ±0.1% of reading ±1 count. These specifications are typically stated for the full-scale reading at reference conditions (e.g., 23°C ±5°C). Always verify the specific model's datasheet for the exact accuracy over the operating temperature range.

How do I select the correct SIMPSON ELECTRIC shunt for my analog panel meter?

SIMPSON ELECTRIC shunts are designed for use with analog panel meters that have a corresponding full-scale deflection voltage, typically 50 mV DC. The shunt's current rating (e.g., 100 A, 200 A, 500 A) must match the maximum current you intend to measure. The shunt includes 5 ft leads for connection. Ensure the shunt's voltage drop (50 mV) matches the meter's input requirement. For portable applications, use external portable shunts; for fixed installations, switchboard shunts are appropriate.

What communication interfaces are available on SIMPSON ELECTRIC digital panel meters?

Several SIMPSON ELECTRIC digital panel meters, such as the A201 and Hawk 3 series, include an RS-485 communication interface. This allows for remote monitoring and data logging via Modbus or other protocols. The RS-485 port is typically isolated and supports multi-drop configurations. Check the specific model's datasheet for baud rate, parity, and addressing details. Some models may also offer analog outputs (e.g., 4-20 mA) as an option.

Can SIMPSON ELECTRIC split core current transformers be used for retrofitting without disconnecting conductors?

Yes, SIMPSON ELECTRIC split core current transformers, such as the 37035 model, are designed for installation without disconnecting the primary conductor. The split core opens to allow placement around a bus bar or cable, then closes and locks. This makes them suitable for retrofitting existing systems. The rectangular window shape accommodates conductors up to a certain size; verify the window dimensions against your conductor's cross-section.

What is the display span range for SIMPSON ELECTRIC digital panel meters?

SIMPSON ELECTRIC digital panel meters typically offer a display span of -1,999 to 9,999 counts (e.g., Mini-Max series) or 0 to 9,999 counts (e.g., A201 and Hawk 3 series). The actual reading range depends on the input scaling and decimal point settings. For example, a DC voltage meter may display -199.9 mV to 999.9 mV or 0.000 to 9.999 V, depending on the model and configuration. Refer to the product manual for scaling instructions.

Are SIMPSON ELECTRIC panel meters suitable for temperature measurement?

Yes, SIMPSON ELECTRIC offers temperature digital panel meters, such as the Hawk 3 series H340-1-91-020, which accept input from thermocouples or RTDs. These meters display temperature in °C or °F with a 9,999 count span. They include RS-485 communication for data logging. The accuracy is ±0.2% of reading ±2 counts. Ensure the sensor type matches the meter's input configuration (e.g., Type K thermocouple).