Top 10 40A bestseller 2026

Circuit breakers 40A in many styles to match your needs, made at factories that meet standards for safe, long-lasting use. Buy a 40A circuit breaker and other sizes at OneStockHome with nationwide delivery at factory prices.

No 1
Circuit Breaker SCHNEIDER (Square D) RCBO 1 Pole 30mA 40A 6kA

Item Number

27049984

Price per Pieces

฿ 1,588.79

Schneider Electric
Brand
Schneider Electric
item dimension

Dimension

1 Phase 1 Pole Maximum Short Circuit Current 6kA Rated Current 40A Rated Residual Operating Current 30mA

item weight

Weight per piece (kg)

3.00

item standard

Standard

TIS 909-2548
No 2
HACO SB 40 Amp Single Phase Safety Breaker (1075589)

Item Number

49237057

Price per EA

฿ 135.51

HACO
Brand
HACO
item dimension

Dimension

3.5x7.5x5.7x cm.

item weight

Weight per piece (kg)

0.12

item standard

Standard

-

item availability status

Availability Status

Nearly out of stock

No 3
Circuit Breaker Easy Pact EZC 3 Pole 7.5kA Size 100A 40 Amp

Item Number

79583831

Price per Pieces

฿ 1,848.60

Schneider Electric
Brand
Schneider Electric
item dimension

Dimension

3 Phase 3 Pole Rated Current 40A Maximum Short Circuit Current 7.5kA Frame Size 100A

item weight

Weight per piece (kg)

4.00

item standard

Standard

-

No 4
RCCB Type A ABB 2 Pole 40A 30mA

Item Number

55606319

Price per Pieces

฿ 2,220.56

ABB
Brand
ABB
item dimension

Dimension

1 Phase 2 Pole กระแสใช้งาน 40A Rated Residual Operating Current 30mA

item weight

Weight per piece (kg)

1.00

item standard

Standard

-

No 5
Miniature Circuit Breaker ABB 1 Pole 40A 6kA (SH201-C40)

Item Number

47800059

Price per Pieces

฿ 113.08

ABB
Brand
ABB
item dimension

Dimension

1 Phase 1 Pole Rated Current 40A Maximum Short Circuit Current 6kA

item weight

Weight per piece (kg)

1.00

item standard

Standard

-

No 6
RCBO 40A SIEMENS 1 Pole 1P+N 6kA 30mA Model 5SU9306-1KK40

Item Number

88208230

Price per Piece

฿ 1,330.84

 SIEMENS
Brand
SIEMENS
item dimension

Dimension

1 Phase 1 Pole Maximum Short Circuit Current 6kA Rated Current 40A Rated Residual Operating Current 30mA

item weight

Weight per piece (kg)

0.20

item standard

Standard

-

No 7
Miniature Circuit Breaker ABB 2 Pole 40A 10kA (S202M-C40)

Item Number

80797378

Price per Pieces

฿ 473.83

ABB
Brand
ABB
item dimension

Dimension

1 Phase 2 Pole Rated Current 40A Maximum Short Circuit Current 10kA

item weight

Weight per piece (kg)

1.00

item standard

Standard

-

No 8
MCB 40A SIEMENS 2 Pole 6kA Model 5SL6240-7

Item Number

29394335

Price per Piece

฿ 846.73

 SIEMENS
Brand
SIEMENS
item dimension

Dimension

1 Phase 2 Pole Rated Current 40A Maximum Short Circuit Current 6kA

item weight

Weight per piece (kg)

0.33

item standard

Standard

-

No 9
RCBO 40A SIEMENS 2 Pole 1P+N 10kA 30mA Model 5SU9354-7KK40

Item Number

62903099

Price per Piece

฿ 2,348.60

 SIEMENS
Brand
SIEMENS
item dimension

Dimension

1 Phase 2 Pole Maximum Short Circuit Current 10kA Rated Current 40A Rated Residual Operating Current 30mA

item weight

Weight per piece (kg)

0.28

item standard

Standard

-

No 10
MCCB A1 ABB 3 Pole 40A 10kA

Item Number

71573012

Price per Pieces

฿ 1,814.95

ABB
Brand
ABB
item dimension

Dimension

3 Phase 3 Pole Rated Current 40A Frame Size 125A Maximum Short Circuit Current 10kA

item weight

Weight per piece (kg)

1.00

item standard

Standard

-