参数资料
型号: MA-21
厂商: Curtis Industries
文件页数: 37/82页
文件大小: 0K
描述: TERM BARRIER 21CIRC DUAL ROW
标准包装: 10
系列: M
端接块类型: 阻隔块
电路数: 21
导线入口数目: 42
间距: 0.500"(12.70mm)
行数: 2
电流: 25A
线规: 12-22 AWG
顶部端子: 螺钉
底部端子: 闭合式
阻挡层类型: 双壁(双)
特点: 法兰
包装: 散装
安装类型: 底座安装或面板安装
工作温度: 150°C
材料 - 绝缘体: 酚醛树脂(酚醛)
材料可燃性额定值: UL94 V-0
Specifications:
Center-to-Center Spacing:  .5" (12 .7mm)
Wire Range:
UL Recognized
MA - No . 22AWG to 12 AWG
M - No . 22 AWG to 14 AWG
How to Order
M Series terminal blocks are ordered by listing a composite
number made up of the model designation followed by the
number of poles required for the application . Example: Type
M 10-pole block becomes stock number M-10 .
Inches
Inches
CSA:
Must use lugs for wire larger than
MA - 12 AWG
M - 16 AWG
No. of Terminals: 1 thru 24
Number of
Terminals
1
Mounting
Dimensions
Metric
(mm)
1 .000 25 .40
Overall
Dimensions
Metric
(mm)
1 .375 34 .92
Voltage Rating:
CSA – 300V
UL – 150V – General Industrial
2
3
4
1 .500
2 .000
2 .500
38 .10
50 .80
63 .50
1 .875
2 .375
2 .875
47 .62
60 .32
73 .00
250V – Commercial Appliance
Tightening Torque: 12 in .-lbs .
Current Rating: UL and CSA: 15A (M), 25A (MA)
Housing:
Material Phenolic
5
6
7
8
3 .000 76 .20
3 .500 88 .90
4 .000 101 .60
4 .500 114 .30
3 .375 85 .72
3 .875 98 .42
4 .375 111 .12
4 .875 123 .82
Continuous Use
Temp . (UL Index)
Flammability Rating
Water Absorption
(24 hrs . % wt . gain)
Chemical Resistance
Breakdown Voltage:
Terminal - Terminal
Terminal - Ground
150°C (302°F)
94V-0
 .05%
Resistant to most organic
solvents
7,400V Typ .
7,800V Typ .
9
10
11
12
13
14
15
16
5 .000 127 .00
5 .500 139 .70
6 .000 152 .40
6 .500 165 .10
7 .000 177 .80
7 .500 190 .50
8 .000 203 .20
8 .500 225 .90
5 .387 136 .52
5 .875 149 .22
6 .375 161 .92
6 .875 174 .62
7 .375 187 .32
7 .875 200 .02
8 .375 212 .72
8 .875 225 .42
Note: Specifications contained herein are subject to change
without notice .
17
18
9 .000 228 .60
9 .500 241 .30
9 .375 238 .12
9 .875 250 .82
Series M Dimensions
19
10 .000 254 .00 10 .375 263 .52
O.D.
M.D.
.187
(4.76)
20
21
22
23
24
10 .500 266 .70 10 .875 276 .22
11 .000 279 .40 11 .375 288 .92
11 .500 292 .10 11 .875 301 .62
12 .000 304 .80 12 .375 314 .32
12 .500 317 .50 12 .875 327 .02
Dimensions shown are ± 0 .030"
.196 Dia. Mtg. Hole
(4.97)
.328
(8.33)
No. 6-32 Terminal Screw (M)
No. 8-32 Terminal Screw (MA)
NOTE: mm dim. are shown in parentheses
Series M Accessories
COVER
Plain cover of 1/16” thick black bakelite with two mounting
studs . Supplied loose for customer installation .
JUMPER
Brass jumper rates at 25 amps.
Part No . 258-A5
Dimensions are in inches and millimeters
unless otherwise specified.
Values in parentheses are metric equivalents .
Curtis Industries
A Division of Powers Holdings, Inc.
1-800-657-0853
35
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