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Features:

Clear Acrylic Window for Wide Angle Visibility

Rugged Black Plastic Case

Black Spade Pointer for Easy Distant Reading

Optional Behind-Panel Mounting Bezel Kit
Specifications:

Accuracy: ±2% F.S. (Iron-Vane), ±3% F.S. (Rectified)

Tracking: ±3%

Response Time: 1.5 Seconds Maximum

Operating Temperature: –4°F to +149°F (–20°C to +65°C)

Accuracy	±2% %
Approvals	RU
Brand/Series	1257 Series
Case Material	High Density Black Plastic
Connection Type	Stud
Cut Out, Panel	2.22 in., 56.4 mm Dia.
Depth	1.15" (29.2mm)
Diameter, Body	2.17 in.
Diameter, Mounting Hole	0.140 in.
Dimensions	2.47" L x 2.47" H
Dimensions, Cutout, Inches	2.22 Dia. in.
Display Type	Analog
Function	Ammeter
Impedance	0.002 Ohms
Material, Casing	Plastic
Measuring Range	0 to 25 A ac
Meter Type	AC Current
Movement	Iron-Vane, Magnetically Damped
Primary Type	Electromechanical
Range, Measurement	0 to 25 AAC
Repeatability	2%
Response Time	1.5 Seconds Maximum
Size	2 - 1?2 in.
Special Features	Extended Operating Temp
Standards	UL Recognized
Temperature Range	-20 to +65 °C
Temperature, Opening, Maximum	+65 °C
Temperature, Operating	-20 to +65 °C
Temperature, Operating, Minimum	-20 °C
Time, Response	1.5 sec. (Max.)
Type	Electronic
Weight	11 kg
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Accuracy ±2% %  Simpson Accuracy ±2% %  Analog Ammeters Accuracy ±2% %  Simpson Analog Ammeters Accuracy ±2% %   Approvals RU  Simpson Approvals RU  Analog Ammeters Approvals RU  Simpson Analog Ammeters Approvals RU   Brand/Series 1257 Series  Simpson Brand/Series 1257 Series  Analog Ammeters Brand/Series 1257 Series  Simpson Analog Ammeters Brand/Series 1257 Series   Case Material High Density Black Plastic  Simpson Case Material High Density Black Plastic  Analog Ammeters Case Material High Density Black Plastic  Simpson Analog Ammeters Case Material High Density Black Plastic   Connection Type Stud  Simpson Connection Type Stud  Analog Ammeters Connection Type Stud  Simpson Analog Ammeters Connection Type Stud   Cut Out, Panel 2.22 in., 56.4 mm Dia.  Simpson Cut Out, Panel 2.22 in., 56.4 mm Dia.  Analog Ammeters Cut Out, Panel 2.22 in., 56.4 mm Dia.  Simpson Analog Ammeters Cut Out, Panel 2.22 in., 56.4 mm Dia.   Depth 1.15" (29.2mm)  Simpson Depth 1.15" (29.2mm)  Analog Ammeters Depth 1.15" (29.2mm)  Simpson Analog Ammeters Depth 1.15" (29.2mm)   Diameter, Body 2.17 in.  Simpson Diameter, Body 2.17 in.  Analog Ammeters Diameter, Body 2.17 in.  Simpson Analog Ammeters Diameter, Body 2.17 in.   Diameter, Mounting Hole 0.140 in.  Simpson Diameter, Mounting Hole 0.140 in.  Analog Ammeters Diameter, Mounting Hole 0.140 in.  Simpson Analog Ammeters Diameter, Mounting Hole 0.140 in.   Dimensions 2.47" L x 2.47" H  Simpson Dimensions 2.47" L x 2.47" H  Analog Ammeters Dimensions 2.47" L x 2.47" H  Simpson Analog Ammeters Dimensions 2.47" L x 2.47" H   Dimensions, Cutout, Inches 2.22 Dia. in.  Simpson Dimensions, Cutout, Inches 2.22 Dia. in.  Analog Ammeters Dimensions, Cutout, Inches 2.22 Dia. in.  Simpson Analog Ammeters Dimensions, Cutout, Inches 2.22 Dia. in.   Display Type Analog  Simpson Display Type Analog  Analog Ammeters Display Type Analog  Simpson Analog Ammeters Display Type Analog   Function Ammeter  Simpson Function Ammeter  Analog Ammeters Function Ammeter  Simpson Analog Ammeters Function Ammeter   Impedance 0.002 Ohms  Simpson Impedance 0.002 Ohms  Analog Ammeters Impedance 0.002 Ohms  Simpson Analog Ammeters Impedance 0.002 Ohms   Material, Casing Plastic  Simpson Material, Casing Plastic  Analog Ammeters Material, Casing Plastic  Simpson Analog Ammeters Material, Casing Plastic   Measuring Range 0 to 25 A ac  Simpson Measuring Range 0 to 25 A ac  Analog Ammeters Measuring Range 0 to 25 A ac  Simpson Analog Ammeters Measuring Range 0 to 25 A ac   Meter Type AC Current  Simpson Meter Type AC Current  Analog Ammeters Meter Type AC Current  Simpson Analog Ammeters Meter Type AC Current   Movement Iron-Vane, Magnetically Damped  Simpson Movement Iron-Vane, Magnetically Damped  Analog Ammeters Movement Iron-Vane, Magnetically Damped  Simpson Analog Ammeters Movement Iron-Vane, Magnetically Damped   Primary Type Electromechanical  Simpson Primary Type Electromechanical  Analog Ammeters Primary Type Electromechanical  Simpson Analog Ammeters Primary Type Electromechanical   Range, Measurement 0 to 25 AAC  Simpson Range, Measurement 0 to 25 AAC  Analog Ammeters Range, Measurement 0 to 25 AAC  Simpson Analog Ammeters Range, Measurement 0 to 25 AAC   Repeatability 2%  Simpson Repeatability 2%  Analog Ammeters Repeatability 2%  Simpson Analog Ammeters Repeatability 2%   Response Time 1.5 Seconds Maximum  Simpson Response Time 1.5 Seconds Maximum  Analog Ammeters Response Time 1.5 Seconds Maximum  Simpson Analog Ammeters Response Time 1.5 Seconds Maximum   Size 2 - 1?2 in.  Simpson Size 2 - 1?2 in.  Analog Ammeters Size 2 - 1?2 in.  Simpson Analog Ammeters Size 2 - 1?2 in.   Special Features Extended Operating Temp  Simpson Special Features Extended Operating Temp  Analog Ammeters Special Features Extended Operating Temp  Simpson Analog Ammeters Special Features Extended Operating Temp   Standards UL Recognized  Simpson Standards UL Recognized  Analog Ammeters Standards UL Recognized  Simpson Analog Ammeters Standards UL Recognized   Temperature Range -20 to +65 °C  Simpson Temperature Range -20 to +65 °C  Analog Ammeters Temperature Range -20 to +65 °C  Simpson Analog Ammeters Temperature Range -20 to +65 °C   Temperature, Opening, Maximum +65 °C  Simpson Temperature, Opening, Maximum +65 °C  Analog Ammeters Temperature, Opening, Maximum +65 °C  Simpson Analog Ammeters Temperature, Opening, Maximum +65 °C   Temperature, Operating -20 to +65 °C  Simpson Temperature, Operating -20 to +65 °C  Analog Ammeters Temperature, Operating -20 to +65 °C  Simpson Analog Ammeters Temperature, Operating -20 to +65 °C   Temperature, Operating, Minimum -20 °C  Simpson Temperature, Operating, Minimum -20 °C  Analog Ammeters Temperature, Operating, Minimum -20 °C  Simpson Analog Ammeters Temperature, Operating, Minimum -20 °C   Time, Response 1.5 sec. (Max.)  Simpson Time, Response 1.5 sec. (Max.)  Analog Ammeters Time, Response 1.5 sec. (Max.)  Simpson Analog Ammeters Time, Response 1.5 sec. (Max.)   Type Electronic  Simpson Type Electronic  Analog Ammeters Type Electronic  Simpson Analog Ammeters Type Electronic   Weight 11 kg  Simpson Weight 11 kg  Analog Ammeters Weight 11 kg  Simpson Analog Ammeters Weight 11 kg