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參數(shù)資料
| 型號： | 0248 |
| 廠商： | THOMAS BETTS CORP |
| 元件分類： | 接線盒 |
| 英文描述： | 50 A, MODULAR TERMINAL BLOCK, 2 ROWS, 1 DECK |
| 文件頁數(shù)： | 5/8頁 |
| 文件大?。?/td> | 243K |
| 代理商： | 0248 |
NEMA Terminal Blocks
Heavy Duty
279
Thomas & Betts Electronics/OEM Division Tel: 901-252-5000 Fax: 901-252-1312
Dimensions shown are for reference only. Dimensions are in inches.
200 SERIES
HEAVY DUTY
SPECIFICATIONS
VOLTAGE RATING: Blocks meet 600 volt creepage
and clearance requirements of NEMA, UL and
CSA for general industrial control equipment and
panelboards. Withstand voltages greatly in
excess of IEEE switchgear standards for 750
volts.
AMPACITY: For a single #4AWG wire the maximum
amperage recommended is 85 amps.
Standard Contacts:
MATERIAL: Electrical grade copper or copper alloy
conductor. Steel Screws plated to resist corro-
sion in most industrial applications
AL-CU TUBULAR SCREW: Aluminum compatibility
with aluminum or copper conductors. AL-CU is
tinplated brass.
Environmental Contacts
(for highly corrosive atmospheres)
TUBULAR SCREW: Electrical grade copper tube
with nickel plating. Nickel plated brass screws.
STRAP SCREW: Nickel plated brass straps and
screws. Nickel plating exceeds specification QQ-
N-290 Class I, Type VII.
Nylon Housing:
MATERIAL: Nylon; Unfilled Type 6/6
MAX. CONTINUOUS TEMPERATURE: 125C (257F)
BREAKDOWN VOLTAGE (AC, 60 HZ):
Contact to Contact: 7000V
Contact to Ground: 7800V
DIELECTRIC STRENGTH (RH40% AT SEA LEVEL):
470-385 Volts/mil thickness Per ASTM D149
UL HIGH VOLTAGE ARC TRACKING (INCHES/MIN.):
.01-.35
WATER ABSORPTION (24 HRS. % WT. GAIN): 1.5%
FLAMMABILITY: UL94V-2
CHEMICAL RESISTANCE: Resistant to aromatic
hydrocarbons, strong alkalies Per ASTM D543
RADIATION RESISTANCE (ERGS G-1 (C)): 8 x 107
COLOR: Translucent White
INDEPENDENT TESTING SERVICE
LISTING AND RECOGNITION
WIRE SIZES, Solid or Stranded Tublar Screw
Tubular Screw
1 #4 AWG, 1 #6 AWG,
1 or 2 #8 AWG, 1 to 4 #10 AWG,
1 or 5 #12 AWG, 1 to 4 #14 AWG,
1 or 6 #16 AWG, 1 to 8 #18 AWG,
AL-CU Tubular Screw
1 #12 AL or CU, 1 #6 AL or CU,
1 or 2 #8 CU, 1 to 4 #10 CU,
1 or 5 #12 CU, 1 to 6 #14 CU,
1 or 6 #16 CU, 1 to 8 #18 CU,
Tubular Clamp
1 #6 AWG, 1 or 2 #8 AWG,
1 to 3 #10 AWG, 1 to 4 #12 AWG,
1 or 4 #14 AWG, 1 to 6 #16 AWG,
1 or 8 #18 AWG
Strap Clamp
1 #18 to 1 #8 AWG
Polypropylene Housing:
MATERIAL: Polypropylene; Filled self-extinguishing
MAX. CONTINUOUS TEMPERATURE: 105C (221F)
BREAKDOWN VOLTAGE (AC, 60HZ):
Contact to Ground: 7800V
Contact to Contact: 7000V
DIELECTRIC STRENGTH (RH40% AT SEA LEVEL):
500 Volts/mil thickness Per ASTM D149
UL HIGH VOLTAGE ARC TRACKING (INCHES/MIN.):
Did not Track
WATER ABSORPTION (24 HRS. % WT. GAIN): 0.02%
Per ASTM D570
FLAMMABILITY: UL94V-0
CHEMICAL RESISTANCE: Resistant to most acids,
alkalines, and saline solutions. Also resistant to
higher aliphatic solvents and polar substances
per ASTM D543
RADIATION RESISTANCE (ERGS G-1 (C)): No data
Available
COLOR: Opaque White
LR25557
E63810
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