Product Data Sheet
Copper Wire Only
Wire Range with Wire Binding Screw: #12 - #22 AWG
7/16” Centers
Application torque: 9 in. lbs
Electrical Ratings:
• 20A with Listed ring lug or unprepared wire, (Based on NEC Table 310-16, 75°C columns)
• 600 Volts AC/DC (UL 1059 Class B, User Group – Commercial Appliances)
• Short Circuit Current Rating: 10,000A (Default)
• Approved for Factory and Field Wiring.
NOTE: Use outside these ratings must be judged in end-use application
Mechanical Ratings:
• Insulator base temperature rating: -40° C/F to 125°C (257°F) UL RTI
• Flammability rating of insulator base: UL 94V-0
Materials:
• Connector (Contact): Brass, tin plated.
• Insulator base: Glass filled polycarbonate (Thermoplastic)
• Drive screw (Rivet): Stainless steel
• Screw, #6-32 Binder head, Phil-Slot: Steel, nickel plated
Agency Approvals:
• UL Recognized, UL 1059 Terminal Block Standard, File No. XCFR2.E62806
• CSA Certified, CSA C22.2 No. 158, File No. LR19766
• CE compliant, IEC 60947-7-1
• RoHS Compliant
621 RZ XX
Replace “XX” with 01 through 30 for number of poles
Terminal Block– Closed Back
High Barrier
20 Amps, 600 Volts
(AC/DC)
(6 Pole shown)
Wire Range:
Copper Wire Stranding Classes - Number of Conductors
Wire Size
Torque
Solid
Class B
Class C
12
9 in. Lbs
1
14 9 in. Lbs 1 1 1
16
9 in. Lbs
1
18
9 in. Lbs
1
20
9 in. Lbs
1
22
9 in. Lbs
1
Mounting:
Suggested product mounting hardware: #6 fastener, torque to 10-15 in. lbs.
Accessories:
• Printing: for printing options, see Terminal Block Printing
http://marathonsp.com/CatalogPDFs/TBPrinting.pdf
• Marking strips (Sub mounted or Top mounted)
http://marathonsp.com/CatalogPDFs/TopMountedMS.pdf
http://marathonsp.com/CatalogPDFs/SubMounted.pdf
• Cover – top mounted (May not accommodate some hardware options)
.
Order CW (white) or CB (Black). Can be printed.
http://marathonsp.com/CatalogPDFs/TopMountedCover.pdf
• Phil-Slot Brass Screw (PSB)
Dimensions
Dimensions
Catalog No
# of Poles
A
B
Catalog No
# of Poles
A
B
621 RZ 01
1
1.19
0.88
X
621 RZ 16
16
7.75
7.44
621 RZ 02
2
1.62
1.31
X
621 RZ 17
17
8.19
7.88
621 RZ 03
3
2.06
1.75
X
621 RZ 18
18
8.62
8.31
621 RZ 04
4
2.50
2.19
X
621 RZ 19
19
9.06
8.75
621 RZ 05
5
2.94
2.63
X
621 RZ 20
20
9.50
9.19
621 RZ 06
6
3.37
3.06
X
621 RZ 21
21
9.93
9.62
621 RZ 07
7
3.81
3.50
X
621 RZ 22
22
10.37
10.06
621 RZ 08
8
4.25
3.94
X
621 RZ 23
23
10.81
10.50
621 RZ 09
9
4.68
4.37
X
621 RZ 24
24
11.24
10.93
621 RZ 10
10
5.12
4.81
X
621 RZ 25
25
11.68
11.37
621 RZ 11
11
5.56
5.25
X
621 RZ 26
26
12.12
11.81
621 RZ 12
12
5.99
5.68
X
621 RZ 27
27
12.55
12.24
621 RZ 13
13
6.43
6.12
X
621 RZ 28
28
12.99
12.68
621 RZ 14
14
6.87
6.56
X
621 RZ 29
29
13.43
13.12
621 RZ 15
15
7.31
7.00
X
621 RZ 30
30
13.86
13.55
Top mounted hardware is .250" wide
MM = Dim X 25.4
PDS 0252 REV
C
02/14/17
WWW.MARATHONSP.COM
(419) 352-8441