Bulletin 1492-MC
Circuit Breaker
Cat. No. Explanation/Product Selection
1492-MC Cat. No. Explanation
Examples given in this section are for reference purposes. This basic explanation should not be used for product selection; not all
combinations will produce a valid catalog number.
0
1492-MC
A
a
A
b
1
c
15
d
1
a
c
Poles
d
Body Style
Current Rating
Size
Code
Description
Code
Description
1 pole
Code
Description
10 A
Code
Description
50 A
A
B
E
1/2 in. wide/pole (DIN Rail mounting)
1 in. wide/pole (DIN Rail mounting)
GFEP (30 mA)
1
2
10
15
20
25
30
35
40
45
50
55
60
70
80
90
A0
2 poles
15 A
55 A
2
2H
3
2 poles (240V AC)
3 poles
20 A
60 A
G
GFCI (5 mA)
25 A
70 A
30 A
80 A
b
35 A
90 A
Interrupt Rating
Description
10 kA AIC
3
40 A
100 A
Code
45 A
A
Bul. 1492-MC Thermal Magnetic Product Selection
120/240 and 240V AC DIN Rail Mounting
4
120/240 and 240V AC DIN Rail Mounting
Cat. No.
Cat. No.
240V AC
Width
per pole
[in.]
Width
per pole
[in.]
120/240V AC
Continuous Ampere
Rating @ 40°C (104°F)
5
1-pole
2-poles
2-poles
3-poles
10
15
20
25
30
35
40
45
50
55
60
70
80
90
100
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1
1492-MCAA110 1492-MCAA210
1492-MCAA115 1492-MCAA215
1492-MCAA120 1492-MCAA220
1492-MCAA125 1492-MCAA225
1492-MCAA130 1492-MCAA230
1492-MCAA135 1492-MCAA235
1492-MCAA140 1492-MCAA240
1492-MCAA145 1492-MCAA245
1492-MCAA150 1492-MCAA250
1492-MCAA155 1492-MCAA255
1492-MCAA160 1492-MCAA260
1492-MCBA170 1492-MCBA270
1492-MCBA180 1492-MCBA280
1492-MCBA190 1492-MCBA290
1492-MCBA1A0 1492-MCBA2A0
—
1/2
1/2
1/2
1/2
1
—
—
1492-MCAA2H15 1492-MCAA315
1492-MCAA2H20 1492-MCAA320
1492-MCAA2H25 1492-MCAA325
1492-MCAA2H30 1492-MCAA330
1492-MCBA2H35 1492-MCBA335
1492-MCBA2H40 1492-MCBA340
1492-MCBA2H45 1492-MCBA345
1492-MCBA2H50 1492-MCBA350
1492-MCBA2H55 1492-MCBA355
1492-MCBA2H60 1492-MCBA360
1492-MCBA2H70 1492-MCBA370
1492-MCBA2H80 1492-MCBA380
1492-MCBA2H90 1492-MCBA390
1492-MCBA2HA0 1492-MCBA3A0
6
1
1
7
1
1
1
1
8
1
1
1
1
1
1
1492-MC Ground Fault Sensing
The Bulletin 1492-MC Circuit Breakers with Ground Fault protection for Branch Circuits are available in 1- and 2-pole construction in
120/240V rating. Versions are available as Ground Fault Circuit Interrupters and as Ground Fault Equipment Protectors.
9
When protection from low-level fault currents for North American standards is required, two versions of protection are available.
ꢀ Circuit Breakers with protection for personnel use a threshold of 5 mA sensing to provide protection for people. These are typically know as
Ground Fault Circuit Interrupters or GFCIs.
ꢀ Circuit Breakers that provide protection for equipment at a sensing threshold of 30 mA are also available. These are typically known as
Ground Fault Equipment Protectors or GFEPs.
10
11
12
13
The following devices are tested and listed to meet the North American standards of UL 489, UL 943 (for GFCI), UL1053 (for GFEP), and CSA
22.2 No.5.1.
It is recommended that the devices be tested monthly by using the TEST button to check for proper operation of the device.
Auxiliary Devices
Device description
1-pole
2- and 3-poles
1492-MCAAxxx
1492-MCBAxxx
1492-AMCAL1
1492-AMCBL1
Locking Attachment for Circuit Breaker
1492-AMCALM
Finger protection cover for 1 in. wide Cat. No. 1492-MCBxxx, package of 10 (one required
for line and one required for load for each pole) (not for GFCI / GFEP)
1492-AMCBFP
DIN Rail adapter, per pole, DIN Rail mounting for GFCI, GFEP
Panel Mounting Clips for GFCI and GFEP, two required per device
1492-AMCDIN1
1492-AMCP1
www.ab.com/catalogs
Preferred availability cat. nos. are bold.
7-11
Publication A117-CA001A-EN-P
ROCKWELL [ ROCKWELL INTERNATIONAL CORPORATION. ]
