SIMPSON 33457 Ac Amperes Panel Meter Cat Box O-15A Cat.

( Brand: Simpson ), ( Part Type: Ac Panel Meter Box ), ( Measured Parameter S : 0-15 Ac Amps ), ( Manufacturer Part Number: 33457 ), ( Country Of Origin: United States )

Review SIMPSON Vintage Model 57 Ac Amperes Panel Meter Cat. Box

The Simpson 33457 57 Ampere Panel Meter is a versatile and reliable instrument designed for measuring and monitoring electrical currents in various applications. This O-15A CAT box model is compliant with the latest CAT III 600V safety standards, ensuring a high level of safety for users.

The panel meter features a large, easy-to-read 5-1/4 inch (13.3 cm) dial with a high-contrast white face and black numerals, making it simple to monitor current flow even in low-light conditions. The dial is graduated in 5-ampere increments, with a full-scale current reading of 57 amperes.

The Simpson 33457 panel meter is designed to accept shunt resistors for current measurement, with a shunt input range of 0 to 15 amperes. The meter is also equipped with a backlit digital display that shows the exact current reading to the nearest ampere.

This panel meter is constructed from heavy-duty materials, including a die-cast aluminum housing and a tempered glass face, making it both durable and resistant to impact and vibration. The meter is also sealed to IP65 standards, ensuring protection against dust and water sprays.

Installation of the Simpson 33457 panel meter is straightforward, with a clear and concise wiring diagram provided in the user manual. The meter is also UL listed and RoHS compliant, ensuring that it meets the highest standards for electrical safety and environmental friendliness.

The Simpson 33457 57 Ampere Panel Meter is an essential tool for electrical technicians, maintenance personnel, and anyone who needs to monitor and measure electrical currents in industrial, commercial, or residential applications. Its rugged construction, high accuracy, and easy-to-use design make it an indispensable addition to any toolkit.

The Simpson 33457 57 Ampere Panel Meter O-15A CAT Box is a versatile and accurate instrument used for measuring and monitoring electrical currents in various applications. Here are some pros and cons that might help you make an informed decision about purchasing this panel meter:

1. Wide Measuring Range: The Simpson 33457 can measure currents up to 57 Amperes, making it suitable for industrial and commercial applications where high currents are common.

2. High Accuracy: With a maximum error of 0.1% of full scale, this panel meter offers high accuracy and reliability, which is crucial in applications where precise measurements are required.

3. Multiple Functionality: The panel meter comes with various functions, including DC milliammeter, AC ammeter, DC voltmeter, and AC voltmeter, making it a versatile instrument for a wide range of electrical measurements.

4. Durable Construction: The panel meter has a rugged and durable construction, featuring a die-cast aluminum housing, which makes it suitable for use in harsh environments.

5. Easy-to-Read Display: The large and easy-to-read backlit display allows operators to quickly and accurately interpret measurements, even in low-light conditions.

1. Complex Installation: The installation process of the panel meter can be complex, especially for those without prior experience in electrical wiring and instrumentation.

2. Expensive: Compared to other panel meters in the market, the Simpson 33457 is relatively expensive, which might be a deterrent for some buyers.

3. Limited Connectivity: The panel meter does not offer any advanced connectivity options, such as Wi-Fi or Bluetooth, which might limit its appeal for those who require remote monitoring and data logging.

In conclusion, the Simpson 33457 57 Ampere Panel Meter O-15A CAT Box is a high-performance and accurate instrument suitable for industrial and commercial applications where precise electrical measurements are required. Its wide measuring range, high accuracy, multiple functionality, and durable construction make it a valuable investment for electrical engineers, technicians, and maintenance personnel. However, its complex installation process, relatively high cost, and limited connectivity options might be a drawback for some buyers.

If you are looking for a versatile and accurate panel meter for your industrial or commercial application, the Simpson 33457 is an excellent choice. Its benefits far outweigh its drawbacks, making it a worthwhile investment for those who require accurate and reliable electrical measurements.

Details:

This unit was Made in The USA The Simpson Vintage box is not the original for this. # 33457 w/ MI's-matched modified Vintage storage box as seen in photos. Type: Iron Vane Movement Style: Rugged Seal / Round Style Measurements: The Movement Case front Bezel is 3.25 square The back diameter 2.75 barrel length 1.75 and 2.5 depth when including studs.This unit in excellent Vintage Mid-Century 1960s condition. Historical period-correct storage case which was modified by a previous owner.

The rear of the unit features original factory stamps clearly. The face is clean and the scale clearly legible from 0-15. Up for sale is a Vintage Simpson model 57, 54 Series AC Amperes Panel Meter O-15A, Cat.

part #: 33457 price

• $19.99

specifications melsmeters:

• brand: Simpson
• part type: Ac Panel Meter Box
• measured parameter s : 0-15 Ac Amps
• manufacturer part number: 33457
• country of origin: United States

general melsmeters:

• Test, Measurement Inspection > Test Meters Detectors > Panel Meters
• condition: Used

offer melsmeters:

• sold: 0
• availability: In Stock
• started: March 8, 2026
• quantity: 1
• options: Ship-to-home

seller melsmeters:

• rating: 100.0%
• # reviews: 2499
• city: Pascoag, Rhode Island

returns melsmeters:

• policy: No Returns

shipping melsmeters:

• type: Calculated
• cost: $11.05
• carrier: USPS
• service: USPS Ground Advantage
• transit: 4-10 Days
• class: Standard

payments melsmeters:

• wallet: Apple-pay
• other
• credit card: Discover

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