Simpson Model No. 59 Analog AC Ammeter, 0-25 Amps (Cat. No. 1360)

This is a Simpson Electric Model 59 AC ammeter, catalog number 1360 (01360 in the current Simpson listing), with a 0-25 ampere direct-reading scale. The Model 59 is the 4-1/2 inch size in Simpson's rectangular style analog panel meter family, alongside the 2-1/2 inch Model 157 and the 3-1/2 inch Model 57, and the catalog number identifies the movement type and range.

The meter uses an iron-vane, magnetically damped movement on pivot and jewel suspension, reads to +/-2% of full scale, and has a 3.50 inch scale arc. Simpson states that calibration is unaffected when the meter is mounted in a steel panel, and the rectangular line is UL Recognized under file E91015. Ranges up to 50 amps in this series read the circuit current directly; the 100 amp and higher versions are 5 amp meters used with external current transformers.

Panel builders, OEM machine and generator manufacturers, and plant electricians install meters like this in control panels, switchboards, battery chargers, welders and test benches to give operators a continuous visual reading of load current on an AC circuit.

Available from King Surplus inventory in Del Rio, Texas.

• Product: Rectangular style analog panel meter, AC ammeter
• Model: 59 (4-1/2 in size)
• Catalog Number: 1360 (listed as 01360)
• Range: 0-25 AC amperes, direct reading
• Movement: Iron-vane, magnetically damped
• Approx. Impedance: 0.002 ohms at 60 Hz
• Accuracy: +/-2% full scale
• Suspension: Pivot and jewel
• Response Time: 1.5 seconds maximum
• Overload: 10 times full scale for 1 second; 1.5 times full scale continuous
• Scale Length: 3.50 in (89.0 mm)
• Shielding: Calibration unaffected by magnetic (steel) panel mounting
• Case: Plastic case with glass window
• Listing: UL Recognized, File E91015
• Net Weight: 8 oz (0.23 kg) per datasheet
• Spec Basis: Dial face photo (Simpson, MODEL 59, ALTERNATING CURRENT AMPERES, CAT. NO. 1360, 0-25 AC AMPS); Simpson Electric Rectangular Style Analog Panel Meters datasheet Rev. 08-14, AC Ammeters Iron Vane table and Specifications (https://simpsonelectric.com/wp-content/uploads/File/datasheets/rectangular_datasheet.pdf)