Page 1 - Double-Row-Terminal-Blocks (1)

Basic HTML Version

Datasheets available at marathonsp.com
300
300
N/A
N/A
300
300
300
N/A
300
N/A
300
N/A
600
600
600
600
300
300
600
6-32
6-32
8-32
10-32
2-56
5-40
6-32
6-32
6-32
6-32
8-32
8-32
10-32
12-32
1/4-28
6-32
6-32
6-32
8-32
.375
.437
.562
.687
.250
.375
.375
.375
.437
.437
.562
.562
.687
.875
1.125
.437
.375
.437
.562
Number
of Lines
77
Double Row Terminal Blocks
Double Row Terminal Blocks
General Information:
Double Row Terminal Blocks are available in many line to line spacings. Open and closed back designs are available as shown
in table below. Insulator bases are available in both phenolic and thermoplastic material. Modifications are also provided on most
terminal blocks, including marking strips.
Ratings and Standards:
The voltage ratings of terminal blocks are based upon the minimum spacing between electrically conductive parts line to line
through air and over surface and line to ground through air and over surface.
Class A:
Service, including deadfront switchboards, panel boards, service equipment and the like.
Class B:
Commercial appliances including business equipment, electronic data processing equipment and the like.
Class C:
Industrial, general
Reference Chart:
*Open back terminal blocks require an insulator strip to achieve voltage rating.
Series
100/670A GP
200/671 GP
300/672 GP
400
410*
600*
600A*
800A*
601*
801*
602*
802*
603*
604*
605*
621 RZ
670A RZ
671 RZ
672 RZ
Catalog
Page
Voltage Rating*
Amps
Base
Material
Max
Wire Size
Screw
Size
Inches
L to L
Features
1-36
1-30
1-24
1-12
1-23
1-22
1-22
1-22
1-23
1-23
1-26
1-26
1-12
1-8
1-6
1-30
1-30
1-30
1-24
Closed Back
Closed Back
Closed Back
Closed Back
Open Back
Open Back
Open Back
Open Back
Open Back
Open Back
Open Back
Open Back
Open Back
Open Back
Open Back
Closed Back/High Barrier
Closed Back
Closed Back
Closed Back
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Phenolic
Thermoplastic
Thermoplastic
Thermoplastic
Thermoplastic
#12
#12
#10
#10
#18
#12
#12
#12
#12
#12
#12
#12
#10
#4
#2
#12
#12
#12
#10
20
20
30
30
5
15
15
15
20
20
30
30
50
70
90
20
20
20
30
Class B
N/A
N/A
600
600
N/A
150
150
150
300
150
300
150
600
600
600
600
150
N/A
600
Class C
78
79
80
81
82
83
84
84
85
85
86
86
87
88
89
90
91
92
93
Voltage
Thru Air
Over Surface
51-150
0.500
0.750
Class A
151-300
0.750
1.250
301-600
1.000
2.000
51-150
0.063
0.063
Class B
151-300
0.094
0.094
301-600
0.375
0.500
51-150
0.125
0.250
Class C
151-300
0.250
0.375
301-600
0.375
0.500
Spacing Requirements (in inches):