Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Siemens B140H Molded Case Circuit Breaker
- 40A
- 1 Pole
- Bolt-On
Siemens
B140H
Molded Case Circuit Breaker
Brand
Siemens
SKU
B140H
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Siemens B140H - 40A 1 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens B140H - 40A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | B140H |
| Series | B |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Handle Tie |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Insta-Wire, Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism |
Sold out
Quantity
Siemens B140H - 40A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | B140H-R |
| Series | B |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Handle Tie |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Insta-Wire, Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism |
Similar Items
30A 1 Pole Molded Case Circuit Breaker
20A 1 Pole Molded Case Circuit Breaker
15A 1 Pole Molded Case Circuit Breaker
Description
Part of the B-Frame series, the Siemens B140H delivers thermal-magnetic overcurrent protection for commercial electrical systems. This 40-amp, single-pole breaker is engineered to handle higher fault currents with its 22kAIC rating at 120/240VAC. It installs into Siemens P1 through P5 panelboards using a secure bolt-on connection. The unit also serves as a functional substitute for BAB1040H and QOB140VH breakers. This HACR-rated breaker features Insta-Wire technology to speed up wiring.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B140H |
| Series | B |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment, Handle Tie |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Insta-Wire, Non-Interchangeable Trip, Reverse Feed, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the B140H breaker?
The B140H features a bolt-on connection designed specifically for installation in Siemens P1, P2, P3, P4, and P5 panelboards.
What does the H in the B140H part number indicate?
The H designates this as a Type BLH high-interrupting circuit breaker. It provides a 22kAIC rating at 120/240VAC, which is higher than the 10kAIC rating found on standard Type BL breakers.
What are the acceptable wire sizes for the B140H terminal lugs?
The load side lugs accept 8 to 6 AWG copper conductors or 8 to 4 AWG aluminum conductors.
Can the Siemens B140H replace older ITE brand breakers?
Yes, Siemens acquired ITE, and the B140H serves as the direct replacement for legacy ITE 40A, 1-pole, Type BLH bolt-on circuit breakers.
Does the B140H include Insta-Wire technology?
Yes, this breaker features Siemens Insta-Wire. The terminal screws are shipped backed out and ready for immediate wire insertion, which speeds up the wiring process during installation.
How does the thermal magnetic trip unit operate on the B140H?
The fixed thermal magnetic trip unit provides two types of protection. The thermal component offers long time delay protection against overloads, while the magnetic component provides instantaneous protection against short circuits.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.