Skip to content

Proudly Canadian owned and operated | 855-928-8500

Proudly Canadian owned and operated | 855-928-8500

Currency

Canada Breakers

Search Close

Search Account 0 Cart

Search Close

Brands
Circuit Breakers
Breaker Components
Motor Controls
Switches
Bus Plugs
About Us
Contact Us

Search Close

Add a PO number Close

Subtotal

$0.00 CAD

Shipping, taxes, and discount codes calculated at checkout.

Your cart is currently empty.

Switches
Bus Plugs
About Us
Contact Us

Confirm your age

Are you 18 years old or older?

Come back when you're older

Sorry, the content of this store can't be seen by a younger audience. Come back when you're older.

Home / Collections /

40 Amp Breakers

388 products

ABB (1)
Allen-Bradley (1)
Bussmann (3)
Eaton (7)
Eaton Cutler-Hammer (113)
Eaton Moeller (15)
Federal Pioneer (10)
GE (55)
Mersen / Ferraz Shawmut (2)
Schneider Electric (79)
Siemens (3)
Siemens / ITE (62)
Siemens/ITE (37)

1 Pole (75)
2 Pole (144)
3 Pole (153)
4 Pole (1)
Quad (6)

Ground Fault (gfci / gfi) (18)
Ground Fault (GFEP) (11)

Bolt-On (162)
Feed Thru (17)
Feed-Thru (13)
Plug-In (48)

40A (378)
40 A (7)
15A 40A (2)

120V (23)
240V (75)
277V (4)
400V (1)
480V (14)
600V (27)

388 products

Sort

ED61B040L - Siemens - Molded Case Circuit Breaker

Feed Thru - 40 Amp - 1 Pole - 600 Volt

from $268^{99 CAD} from $268.99 CAD

Q140H - Siemens 40 Amp 1 Pole 120 Volt Molded Case Circuit Breaker

Q140H - Siemens - 40 Amp 22kA Circuit Breaker

Plug-In - 40 Amp - 1 Pole - 120 Volt

$39^{99 CAD} $39.99 CAD

NGB2B040B - Siemens - Molded Case Circuit Breaker

NGB2B040B - Siemens - Molded Case Circuit Breaker

Bolt On - 40 Amp - 2 Pole - 600 Volt

from $272^{99 CAD} from $272.99 CAD

NGB1B040B - Siemens - Molded Case Circuit Breaker

NGB1B040B - Siemens - Molded Case Circuit Breaker

Bolt On - 40 Amp - 1 Pole - 347 Volt

from $166^{99 CAD} from $166.99 CAD

NEB3B040B - Siemens - Molded Case Circuit Breaker

NEB3B040B - Siemens - Molded Case Circuit Breaker

Bolt On - 40 Amp - 3 Pole - 600 Volt

from $2,379^{99 CAD} from $2,379.99 CAD Regular price $3,723^{99 CAD} $3,723.99 CAD Save $1,344 CAD

NEB2B040B - Siemens - Molded Case Circuit Breaker

Bolt On - 40 Amp - 2 Pole - 600 Volt

from $1,668^{99 CAD} from $1,668.99 CAD

HEB2B040B - Siemens - Molded Case Circuit Breaker

HEB2B040B - Siemens - Molded Case Circuit Breaker

Bolt-on - 40 Amp - 2 Pole - 600 Volt

from $1,054^{99 CAD} from $1,054.99 CAD

ED62B040L - Siemens - Molded Case Circuit Breaker

Feed Thru - 40 Amp - 2 Pole - 600 Volt

from $419^{99 CAD} from $419.99 CAD

ED43B040L - Siemens 40 Amp 3 Pole 480 Volt Molded Case Circuit Breaker

ED43B040L - Siemens - Molded Case Circuit Breaker

Feed Thru - 40 Amp - 3 Pole - 480 Volt

from $384^{99 CAD} from $384.99 CAD

ED42B040L - Siemens - Molded Case Circuit Breaker

Feed Thru - 40 Amp - 2 Pole - 480 Volt

from $349^{99 CAD} from $349.99 CAD

ED41B040L - Siemens - Molded Case Circuit Breaker

Feed-Thru - 40 Amp - 1 Pole - 120 Volt

from $156^{99 CAD} from $156.99 CAD

ED23B040L - Siemens - Molded Case Circuit Breaker

ED23B040L - Siemens - Molded Case Circuit Breaker

Feed-Thru - 40 Amp - 3 Pole - 240 Volt

from $279^{99 CAD} from $279.99 CAD

Limited availability

ED22B040L - Siemens - Molded Case Circuit Breaker

ED22B040L - Siemens - Molded Case Circuit Breaker

Feed-Thru - 40 Amp - 2 Pole - 240 Volt

from $237^{99 CAD} from $237.99 CAD

CED63B040L - Siemens - Molded Case Circuit Breaker

Feed-Thru - 40 Amp - 3 Pole - 600 Volt

from $1,679^{99 CAD} from $1,679.99 CAD

CED63A040 - Siemens - Molded Case Circuit Breaker

CED63A040 - Siemens - Molded Case Circuit Breaker

Bolt-On - 40 Amp - 3 Pole - 600 Volt

from $1,393^{99 CAD} from $1,393.99 CAD

FBH36TE040RV - GE - Molded Case Circuit Breaker

Bolt-On - 40 Amp - 3 Pole - 600 Volt

from $1,968^{99 CAD} from $1,968.99 CAD

THQC32040WL - GE - Molded Case Circuit Breaker

THQC32040WL - GE - Molded Case Circuit Breaker

Feed-Thru - 40 Amp - 3 Pole - 240 Volt

from $108^{99 CAD} from $108.99 CAD

THQC1140WL - GE - Molded Case Circuit Breaker

THQC1140WL - GE - Molded Case Circuit Breaker

Feed-Thru - 40 Amp - 1 Pole - 120 Volt

from $15^{99 CAD} from $15.99 CAD

THQB32040ST1 - GE - 40 Amp Shunt Trip Circuit Breaker

THQB32040ST1 - GE - 40 Amp Shunt Trip Circuit Breaker

Bolt-On - 40 Amp - 3 Pole - 240 Volt

from $307^{99 CAD} from $307.99 CAD Regular price $428^{99 CAD} $428.99 CAD Save $121 CAD

Limited availability

THQB2140ST1 - GE - 40 Amp Shunt Trip Circuit Breaker

THQB2140ST1 - GE - 40 Amp Shunt Trip Circuit Breaker

Bolt-On - 40 Amp - 2 Pole - 240 Volt

from $110^{99 CAD} from $110.99 CAD Regular price $246^{99 CAD} $246.99 CAD Save $136 CAD

B340HH - Siemens - 40 Amp 22kA Circuit Breaker

Bolt-On - 40 Amp - 3 Pole - 240 Volt

$449^{99 CAD} $449.99 CAD

Limited availability

B34000S01 - Siemens - 40 Amp Shunt Trip Circuit Breaker

Bolt-On - 40 Amp - 3 Pole - 240 Volt

$295^{99 CAD} $295.99 CAD

B240HH - Siemens 40 Amp 2 Pole 240 Volt Molded Case Circuit Breaker

B240HH - Siemens - 40 Amp 22kA Circuit Breaker

Bolt-On - 40 Amp - 2 Pole - 240 Volt

$313^{99 CAD} $313.99 CAD

B140H - Siemens 40 Amp 1 Pole 120 Volt Molded Case Circuit Breaker

B140H - Siemens - 40 Amp 22kA Circuit Breaker

Bolt-On - 40 Amp - 1 Pole - 120 Volt

$59^{99 CAD} $59.99 CAD

BQD6240 - Siemens 40 Amp 2 Pole 600 Volt Bolt-On Molded Case Circuit Breaker

BQD6240 - Siemens - 40 Amp Molded Case Circuit Breaker

Bolt-On - 40 Amp - 2 Pole - 600 Volt

$379^{99 CAD} $379.99 CAD

BQD240 - Siemens 40 Amp 2 Pole 480 Volt Bolt-On Molded Case Circuit Breaker

BQD240 - Siemens - 40 Amp Molded Case Circuit Breaker

Bolt-On - 40 Amp - 2 Pole - 480 Volt

$367^{99 CAD} $367.99 CAD

BQD140 - Siemens 40 Amp 1 Pole 277 Volt Bolt-On Molded Case Breaker

BQD140 - Siemens - 40 Amp Molded Case Circuit Breaker

Bolt-On - 40 Amp - 1 Pole - 277 Volt

$147^{99 CAD} $147.99 CAD

BQ3B040H - Siemens 40 Amp 3 Pole 240 Volt Bolt-On Molded Case Circuit Breaker

BQ3B040H - Siemens - 40 Amp Molded Case Circuit Breaker

Bolt-On - 40 Amp - 3 Pole - 240 Volt

$339^{99 CAD} $339.99 CAD

Previous 1 … 8 9 10

Recently viewed

Join our mailing list to receive special offers.

Enter your email Subscribe

Customer Care

Account
About Us
Contact Us
Return Policy
Warranty
Shipping Policy
Rewards
Sell To Us

Get in touch

+1 855 928 8500
Email us

We accept

Currency

© 2025 Canada Breakers

40 Amp Breakers