Model: 257-331

Lamp Ballast

Properties:

Overall Length
12.125 inches
Body Diameter
3.750 inches
Mounting Hole Quantity
4
Current Type
Ac
Frequency Rating
60.0 hertz
Overall Diameter
3.750 inches
Center To Center Distance Between Mounting Holes Along Length
4.000 inches
Center To Center Distance Between Mounting Holes Along Width
4.250 inches
Mounting Method
Holes
Lamp Accommodation Quantity
2
Lamp Wattage Rating In Watts
85.0 and 110.0
Current Rating In Amps
0.800
Voltage Rating
120.0 volts
Power Factor Characteristic
High
Starting Characteristic
Rapid
Starter
Not required
NSN
6250-01-021-9599
Part Number
257-331
Description
Ballast,lamp
CAGE
75138

An item specifically designed for use with fluorescent or mercury vapor lamps and starters to provide a high starting voltage for striking the arc and to stabilize the operating impedance of the circuit in order to maintain the operating current at a steady value.

Part 257-331 NSN 6250-01-021-9599

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05123
FIIG:
T316-C
Concept No.:
App. Key:
CA
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8504100000
  • SITC: 77123
  • End Use: Generators, accessories
  • NAICS: 335311
  • USDA: 1

Freight Class: Ballasts for discharge lamps or tubes

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