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circuit-breaker
Siemens B140H - 40 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState
★★★★★
| Part Number | B140H |
| Amperes | 40 |
| Poles | 1 |
| Voltage | 120 |
| Product Type | circuit-breaker |
Regular price
$710.00
Sale price
$710.00
Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Siemens B140H - 40 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState
Regular price
$710.00
Sale price
$710.00
Regular price
Unit price
Product description
Shipping
Protect and simplify your 120V electrical system with the Siemens B140H 40A 1-Pole Bolt-On Circuit Breaker. Built to endure in panelboards and loadcenters, this molded-case breaker delivers reliable overcurrent and short-circuit protection with a design that prioritizes secure installation and consistent performance across temperature and vibration.
- Secure bolt-on mounting: Tight, vibration-resistant bus connection for long-term reliability.
- Thermal-magnetic trip unit: Combines heat-sensing and magnetic trip actions for stable, repeatable protection.
- OEM-compatible: Designed to pair with matching Siemens OEM loadcenters and panelboards for straightforward replacement or upgrades.
- Versatile for multiple sectors: Suitable for residential, commercial, and light industrial installations requiring 40A, 120V protection.
- One-pole, bolt-on convenience: Easy installation in appropriate panel spaces, delivering targeted protection for single-phase circuits.
Use cases and scenarios: Upgrading an aging panel, replacing a failed breaker, or provisioning a new 120V circuit in homes, offices, or light industrial spaces. The B140H fits situations where a robust, single-pole solution is essential for controlling risk on 120V loads like lighting, receptacles, and small equipment runs.
Technical specifications
- Manufacturer: Siemens
- Part Number: B140H
- Type: Thermal-magnetic molded case circuit breaker
- Amperage Rating: 40A
- Voltage Rating: 120V
- Number of Poles: 1
- Mounting Style: Bolt-on
- Application: Branch circuit overcurrent and short-circuit protection
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What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Lead time was reasonable and the part matched expectations when it arrived.
Procurement · Ontario
Verified
Good value for industrial use. Customers mention easy installation.
Service tech · Field work
