Rockwell Automation IEC Technical Data

Technical Data

Original Instructions

IEC Busbar Mounting System Specifications

Bulletins 141A, 141C

Topic	Page
Product Overview	2
141C Crossboard® Mounting System	3
Catalog Number Explanation	3
Product Selection	4
Accessories	6
Specifications	7
Approximate Dimensions	9
141A Classic Mounting System	17
Catalog Number Explanation	17
Product Selection	19
Specifications	32
Approximate Dimensions	38
Additional Resources	55

Product Overview

Product Overview

	Bulletin No.		141C Crossboard® Mounting System		141A MCS Mounting System
	Current Rating, Max.		UL: 100 A		UL: 1400 A
			IEC: 125 A		IEC: 1175 A
	Degree of Protection (Ingress Rating)		IP20		IP20B (finger safe)
		•	IEC/EN 61439-1:2011
		•	UL 508	•	IEC/EN 61439-1
		•	CSA C22.2, No 14
	Standards Compliance	•	EN 60947-1 + A1:2007	•	UL 508(1)
		•	EN 60947-1 + A2:2011	•	CSA C22.2, No 14
		• EN 60947-3 + A1:2008
		• EN 60947-3 + A2:2012
	Certifications		CE		CE
			cULus Listed		cULus Recognized
		•	Reduced power wiring	•	Reduced power wiring
				• Efficient design with decreased panel space
		• Efficient design with decreased panel space
	Features			•	Factory-assembled starters
		• Adapters to support a wide range of devices
				• Adapters to support a wide range of devices
		• Plug-and-play design
				• Plug-and-play design
	Product Selection		page 3		page 17

(1) Most components comply with UL 508; there some exceptions. Consult your local Rockwell Automation sales office or Allen-Bradley distributor.

2	Rockwell Automation Publication 141-TD001A-EN-P - April 2021

141C Crossboard® Mounting System

Catalog Number Explanation

Examples that are given in this section are not intended to be used for product selection. Not all combinations produce a valid catalog number.

Busbar Bases

141C

–

B

225

a

b

c

a

b

c

Bulletin Number

Type

Length

Code

Description

Code

Description

Code

Description

141C

Crossboard Mounting System

B

Busbar system base, 3-pole

225

225 mm (8.86 in.)

405

405 mm (15.94 in.)

Busbar Adapters

141C

–

18

S

16

L1

a

b

c

d

e

a

b

c

d

e

Bulletin Number

No. of Poles/Width

Mounting Rail

Current Rating

Terminal Connection

Code

Description

Code

Description

Code

Description

Code

Description

Code

Description

141C

Crossboard Mounting System

18

1 pole, 18 mm (0.71 in.)

S

Fixed

Blank

0 A (no electrical

No electrical

connection)

Blank

connection

45

3 poles, 45 mm (1.77 in.)

R

Adjustable

16

16 A

25

25 A

L1

L1

32

32 A

L2

L2

45

45 A

L3

L3

63

63 A

Connection Modules

141C

–

VN

16

a

b

c

a

b

c

Bulletin Number

Type

Wire Size

Code

Description

Code

Description

Code

Description

141C

Crossboard Mounting System

VN

Connection module, 3-pole

16

16 mm2, #14…6 AWG

50

50 mm2, #10…1 AWG

Rockwell Automation Publication 141-TD001A-EN-P - April 2021

3

141C Crossboard® Mounting System

Product Selection

Busbar Adapters for Bulletin 140G Molded Case Circuit Breakers, 140MG Motor Protection Circuit Breakers, and 140MG Motor Circuit Protectors

141C

–

G

G

U

a

b

c

d

a

b

c

d

Bulletin Number

Type

Frame Size

Terminals

Code

Description

Code

Description

Code

Description

Code

Description

141C

Crossboard Mounting System

G

Busbar adapters for Bulletin 140G and

G

G-Frame

U

Universal Connection

MG devices

H

H-Frame

Product Selection

Busbar System Bases

Description

Rated Thermal Current [A]

Width [mm (in.)]

Pkg. Qty.

Cat. No.

IEC

UL

125

100

225 (8.86)

1

141C-B225

Busbar system base

• 3 poles

125

100

405 (15.94)

1

141C-B405

Connection Modules

Description

Rated Thermal Current [A]

Width [mm (in.)]

Pkg. Qty.

Cat. No.

IEC

UL

Connection module

•

3-pole

63

48

22.5 (0.89)

1

141C-VN16

•

Spring terminals

• 16 mm2, #14…6 AWG wire size

Connection module

•

3-pole

125

100

45 (1.77)

1

141C-VN50

•

Box terminals

• 50 mm2, #10…1 AWG wire size

4	Rockwell Automation Publication 141-TD001A-EN-P - April 2021

141C Crossboard® Mounting System

Product Selection

Adapters, 3 Poles

	Description	Rated Thermal Current [A]		Width [mm (in.)]	Pkg. Qty.	Cat. No.
		IEC	UL
	3-Pole Adapter
	• without electrical connection	—	—	45 (1.77)	1	141C-45R
	• 1 adjustable mounting rail
		16	12		1	141C-45R16
		25	25		1	141C-45R25
	3-Pole Adapter	32	30		1	141C-45R32
				45 (1.77)
	• 1 adjustable mounting rail
		45	45		1	141C-45R45

Adapters, 1 Pole

		Description		Connection	Rated Thermal Current [A]		Width	Pkg. Qty.	Cat. No.
					IEC	UL	[mm (in.)]
	1-Pole Adapter								141C-18S
	•	without electrical connection			—	—	18 (0.71)	6
	• 1 adjustable mounting rail
			•	L1	16	16	18 (0.71)	6	141C-18S16L1
			•	Top busbar
	1-Pole Adapter
			•	L2	16	16	18 (0.71)	6	141C-18S16L2
	•	#14 AWG wires	•	Middle busbar
	• 1 fixed mounting rail
	•	White indicator shows	•	L3
		which pole is active			16	16	18 (0.71)	6	141C-18S16L3
			•	Bottom busbar
			•	L1	63	63	18 (0.71)	6	141C-18S63L1
			•	Top busbar
	1-Pole Adapter
			•	L2	63	63	18 (0.71)	6	141C-18S63L2
	•	#8 AWG wires	•	Middle busbar
	• 1 fixed mounting rail
	•	White indicator shows	•	L3
		which pole is active			63	63	18 (0.71)	6	141C-18S63L3
			•	Bottom busbar

Rockwell Automation Publication 141-TD001A-EN-P - April 2021

5

141C Crossboard® Mounting System

Accessories

Accessories

	Description	Rated Thermal Current [A]		Width [mm (in.)]	Pkg. Qty.	Cat. No.
		IEC	UL
	Adapter Extension Module	—	—	45 (1.77)	8	141C-X40
	• For 45 mm adapters
	Fuse Holder
	• For 10 x 38 and Class CC fuses	16	12.5	22.5 (0.89)	1	141C-23S16F
	• 3-pole
	• 1 fixed mounting rail
	Breaker Adapter
	• For 140G-G Molded Case Circuit	160	100	90 (3.54)	1	141C-GGU
	Breaker (MCCB)
	• Universal Terminals for Top or
	Bottom Mount
	Breaker Adapter
	• For 140G-H MCCB	160	100	90 (3.54)	1	141C-GHU
	• Universal Terminals for Top or
	Bottom Mount
	Fused Switch Disconnector	125		49.5 (1.95)	1	141C-NFD125

6	Rockwell Automation Publication 141-TD001A-EN-P - April 2021

141C Crossboard® Mounting System

Specifications

Specifications

Table 1 - Short-circuit Current Rating (SCCR)

Cat. No.	Description	Rating	SCCR [kA]			Protection
				Voltage	Current		Type
			10 kA	600V	—		None (3-cycle)
141C-B225	Busbar base, 225 mm (8.86 in.)	600V/100 A	100 kA	480V	125 A		Circuit breaker (DIVQ)
			65 kA	600V	125 A		Circuit breaker (DIVQ)
			100 kA	600V	175 A		Fuse (Class J)
			10 kA	600V	—		None (3-cycle)
141C-B405	Busbar base, 405 mm (15.94 in.)	600V/100 A	100 kA	480V	125 A		Circuit breaker (DIVQ)
			65 kA	600V	125 A		Circuit breaker (DIVQ)
			100 kA	600V	175 A		Fuse (Class J)
141C-VN16	Connection module, 22.5 mm (0.89 in.)	600V/48 A	6 kA	600V	—		None (3-cycle)
			50 kA	600V	50 A		Fuse (Class J)
			10 kA	600V	—		None (3-cycle)
141C-VN50	Connection module, 45 mm (1.77 in.)	600V/100 A	100 kA	480V	125 A		Circuit breaker (DIVQ)
			65 kA	600V	125 A		Circuit breaker (DIVQ)
			100 kA	600V	175 A		Fuse (Class J)
			6 kA	600V	—		None (3-cycle)
141C-18S16L1
			50 kA	600V	20 A		Fuse (Class CC)
141C-18S16L2	Busbar adapter, 1-pole, 18 mm (0.71 in.)	600V/16 A
			14 kA	480/277V	20 A		Circuit breaker (DIVQ)
141C-18S16L3
			65 kA	480/277V	16 A		NKJH type E
141C-18S63L1			6 kA	600V	—		None (3-cycle)
141C-18S63L2	Busbar adapter, 1-pole, 18 mm (0.71 in.)	600V/63 A	10 kA	480/277V	30 A		Circuit breaker (DIVQ)
141C-18S63L3
			65 kA	480/277V	65 A		NKJH type E
			5 kA	600V	—		None (3-cycle)
141C-45R16	Busbar adapter, 3-pole, 45 mm (1.77 in.)	600V/12 A	50 kA	600V	20 A		Fuse (Class CC)
			65 kA	480V	12 A		NKJH type E
141C-45R25	Busbar adapter, 3-pole, 45 mm (1.77 in.)	600V/25 A	5 kA	600V	—		None (3-cycle)
			65 kA	480V	32 A		NKJH type E
141C-45R32	Busbar adapter, 3-pole, 45 mm (1.77 in.)	600V/30 A	5 kA	600V	—		None (3-cycle)
			65 kA	480V	32 A		NKJH type E
141C-45R45	Busbar adapter, 3-pole, 45 mm (1.77 in.)	600V/45 A	6 kA	600V	—		None (3-cycle)
			65 kA	480V	55 A		NKJH type E
141C-GGU			10 kA	600V	—		None (3-cycle)
	Busbar adapter, 3-pole, 90 mm (3.54 in.)	600V/125 A	100 kA	480V	125 A		Circuit breaker (DIVQ)
141C-GHU
			42 kA	600V	125 A		Circuit breaker (DIVQ)

Rockwell Automation Publication 141-TD001A-EN-P - April 2021

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141C Crossboard® Mounting System

Specifications

General Data

Table 2 - Main Circuits

	Attribute			Value
Rated insulation	IEC, EN		[V]	690
voltage Ui
	UL, CSA		[V]	600
Rated impulse withstand	voltage Uimp		[kV]	6
Rated frequency			[Hz]	50…60
Pollution degree				2
	Adapters and busbars			IP00
Protection class	Adapters and busbars mounted on			IP20
	plate, connected conductors, and
	usage of busbar covers

•IEC/EN 61439-1:2011

•UL 508

•CSA C22.2, No 14

Standards Compliance

• EN 60947-1 + A1:2007

•EN 60947-1 + A2:2011

•EN 60947-3 + A1:2008

•EN 60947-3 + A2:2012

Certifications

CE, cULus Listed

Table 3 - Adapter Data

3-Pole Adapters

1-Pole Adapters

		141C-45R16	141C-45R25	141C-45R32	141C-45R45	141C-18S16…	141C-18S63…
Rated current at 60 °C I (1)	[A]	16	25	32	45	16	63
th
Flexible with ferrule	[mm2]	2.5	4	6	10	2.5	10
	[AWG]	14	12	10	8	14	8
Insulation rating of conductors			105 °C (221 °F)			105 °C (221 °F)

(1)The admissible load of a complete system depends on the system topography and the application parameters. Factors of influence are ambient temperature, air circulation, busbar load, distribution of busbar load, mix of adapters and switchgear components.

Table 4 - Weights

Cat. No.	Weight [g]
141C-VN16	182
141C-VN20	272
141C-B225	765
141C-B405	1326
141C-18S16L1	51
141C-18S16L2	51
141C-18S16L3	51
141C-18S63L1	72
141C-18S63L2	72
141C-18S63L3	72

Cat. No.	Weight [g]
141C-18S	44
141C-45R	89
141C-45R16	109
141C-45R25	117
141C-45R32	124
141C-GGU	519
141C-GHU	519
141C-45R45	150
141C-X40	18
141C-NFD125	422
141C-23S16F	92

8	Rockwell Automation Publication 141-TD001A-EN-P - April 2021

141C Crossboard® Mounting System

Approximate Dimensions

Approximate Dimensions

Dimensions are in millimeters (inches.) and are not intended to be used for manufacturing purposes.

Figure 1 - Cat. No. 141C-B225 Busbar System Base
225 (8.86)
22.5
(0.89)	90.0 (3.54)
90.0 (3.54)
38.5
(1.52)

160.0

(6.3)

83

(3.27)

45.1 (1.78)

30.9 (1.22)

80

(3.15)

Figure 2 - Cat. No. 141C-B405 Busbar System Base

		405 (15.94)
67.5 (2.66)	90.0 (3.54)	90.0 (3.54)	90.0 (3.54)

38.5

(1.52)

83

(3.27)

160.0

(6.3)

45.1

(1.78)

30.9

(1.22)

80

(3.15)

Rockwell Automation Publication 141-TD001A-EN-P - April 2021

9

141C Crossboard® Mounting System

Approximate Dimensions

Figure 3 - Cat. No. 141C-VN16 Connection Module with Spring Terminals

22.1

(0.87)

160.0

(6.3)

110.0 (4.33)

99.0 (3.9)

20.0

(0.79)

60.0

(2.36)

60.0

(2.36)

Figure 4 - Cat. No. 141C-VN50 Connection Module with Box Terminals

		92.5 (3.64)
45.0	(1.77)	81.5 (3.21)
		20.0
		(0.79)
		60.0
160.0		(2.36)
(6.3)
		60.0
		(2.36)

10	Rockwell Automation Publication 141-TD001A-EN-P - April 2021

Figure 5 - Cat. No. 141C-45R 3-Pole Adapter

20.0

(0.79)

55

(2.17)

60.0

(2.36)

160.0

(6.3)

60.0

(2.36)

45.0 (1.77)
				24.5
			(0.96)

Figure 6 - Cat. No. 141C-45R16 3-Pole Adapter

10.0 (0.39)

120.0

(4.72)

20.0 (0.79)

55

(2.17)

60.0

(2.36)

160.0

(6.3)

60.0

(2.36)

45.0 (1.77)

24.5

(0.96)

141C Crossboard® Mounting System

Approximate Dimensions

Figure 7 - Cat. No. 141C-R25, -R32, and -R45 3-Pole Adapters

10.0 (0.39)

100.0

(3.94)

20.0

(0.79)

55

(2.17)

60.0

(2.36)

160.0

(6.3)

60.0

(2.36)

45.0 (1.77) 24.5 (0.96)

Rockwell Automation Publication 141-TD001A-EN-P - April 2021

11

141C Crossboard® Mounting System

Approximate Dimensions

Figure 8 - Cat. No. 141C-X40 Adapter Extension Module

46.0

(1.81)

39.8

(1.57)

45.1 (1.78)	24.5 (0.96)
Figure 9 - Cat. No. 141C-23S16F Fuse Holder
	22.5	20.0
	(0.89)	(0.79)
	62.5	60.0
		(2.36)
	(2.46)
160.0
(6.3)
		60.0
		(2.36)
130.9 (5.15)	75.0 (2.95)
22.3
(0.88)

12	Rockwell Automation Publication 141-TD001A-EN-P - April 2021

141C Crossboard® Mounting System

Approximate Dimensions

	Figure 10 - Cat. No. 141C-GGU Breaker Adapter
		26.2	20.0
			(0.79)
	15.0	(1.03)
	(0.59)
	181.9	22.6
	(7.16)		60.0
		(0.89)
	160.0		(2.36)
	(6.3)
	114.5
	(4.51)
			60.0
			(2.36)
	25.0 (0.98)		35.0 (1.38)
	90.0 (3.54)

Figure 11 - Cat. No. 141C-GHU Breaker Adapter

181.9

(7.16)

160.0

(6.3)

114.5

(4.51)

30.0 (1.18)

90.0 (3.54)

		26.2	20.0
			(0.79)
	15.0	(1.03)
	(0.59)
		22.6
		(0.89)	60.0
			(2.36)
			60.0
			(2.36)
			35.0 (1.38)

Rockwell Automation Publication 141-TD001A-EN-P - April 2021

13

141C Crossboard® Mounting System

Approximate Dimensions

Figure 12 - Cat. No. 141C-18S 1-Pole Adapter

160.0

(6.3)

18.0

(0.71)

20.0

(0.79)

55

(2.17)

60.0

(2.36)

60.0

(2.36)

25.0

(0.98)

Figure 13 - Cat. No. 141C-181S6L1 1-Pole Adapter

	10.0 (0.39)
	60.0
	(2.36)
	20.0
	(0.79)
	55
	(2.17)
	60.0
	(2.36)
160.0
(6.3)
	60.0
	(2.36)
18.0	25.0
(0.71)	(0.98)

Figure 14 - Cat. No. 141C-18S16L2 1-Pole Adapter

10.0 (0.39)

100.0

(3.94)

	20.0
	(0.79)
	55
	(2.17)
	60.0
	(2.36)
160.0
(6.3)	60.0
	(2.36)
18.0	25.0
	(0.98)
(0.71)

Figure 15 - Cat. No. 141C-18S16L3 1-Pole Adapter

10.0 (0.39)

100.0

(3.94)

	20.0
	(0.79)
	55
	(2.17)
	60.0
	(2.36)
160.0
(6.3)	60.0
	(2.36)
18.0	25.0
	(0.98)
(0.71)

14	Rockwell Automation Publication 141-TD001A-EN-P - April 2021

141C Crossboard® Mounting System

Approximate Dimensions

Figure 16 - Cat. No. 141C-18S63L1, -L2, and -L3 1-Pole Adapters

10.0 (0.39)

100.0

(3.94)

		20.0
		(0.79)
		55
		(2.17)
		60.0
		(2.36)
160.0
(6.3)
		60.0
		(2.36)
18.0		25.0
		(0.98)
(0.71)
Figure 17 - Cat. No. NFD125 Fuse Switch Disconnector
		95.8 (3.77)
49.5 (1.95)		85.0 (3.35)
		20.0
		(0.79)
		60.0
		(2.36)
174.5
(6.87)
		60.0
		(2.36)
16.6	16.6	18.0
(0.65)	(0.65)	(0.71)

Rockwell Automation Publication 141-TD001A-EN-P - April 2021

15

141C Crossboard® Mounting System

Approximate Dimensions

Notes:

16	Rockwell Automation Publication 141-TD001A-EN-P - April 2021

141A Classic Mounting System

Catalog Number Explanation

Examples that are given in this section are not intended to be used for product selection. Not all combinations produce a valid catalog number.

Busbar Adapters

141A

–

C

S

45

R

R

16

a

b

c

d

e

f

g

a

b

c

d

Bulletin Number

Type

Length

Width

Code

Description

Code

Description

Code

Description

Code

Description

141A

Classic Mounting System

G

Standard busbar adapter

S

Short: 200 mm (7.87 in.)

45

45 mm (1.77 in.)

F

Standard busbar adapter with terminals

M

Medium: 260 mm (10.2 in.)

54

54 mm (2.13 in.)

C

Compact busbar adapter

L

Long: 320 mm (12.6 in.)

63

63 mm (2.48 in.)

72

72 mm (2.83 in.)

81

81 mm (3.19 in.)

90

90 mm (3.54 in.)

108

108 mm (4.25 in.)

110

110 mm (4.33 in.)

180

180 mm (7.09 in.)

270

270 mm (10.63 in.)

e

f

g

Top Hat Rail

Bottom Hat Rail

Current Rating

Code

Description

Code

Description

Code

Description

R

Plastic hat rail

R

Rockwell Automation custom plastic rail

Blank

0 A (no electrical connection)

S

Plastic hat rail

S

Standard plastic rail

16

16 A

M

Metal hat rail

Blank

No bottom rail

25

32 A

V

Screw mounting, variable

45

63 A

positions

125

125 A

200

200 A

250

250 A

Rockwell Automation Publication 141-TD001A-EN-P - April 2021

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