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circuit-breaker
Square D QOB31001021 100A 3P 240V Circuit Breaker, QO, Bolt-On, Shunt Trip | AmpState
| Part Number | QOB31001021 |
| Series | QO |
| Amperes | 100 |
| Poles | 3 |
| Voltage | 240 |
| Product Type | circuit-breaker |
Regular price
$1,574.00
Sale price
$1,574.00
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.
Square D QOB31001021 100A 3P 240V Circuit Breaker, QO, Bolt-On, Shunt Trip | AmpState
Regular price
$1,574.00
Sale price
$1,574.00
Regular price
Unit price
Product description
Shipping
Introducing the Square D QOB31001021, a 3-pole, 100-amp circuit breaker engineered for dependable protection in panelboards, load centers, and electrical distribution systems. Built on the robust QO platform, this unit is designed for bolt-on installation and features a shunt trip for remote, fast tripping when safety or control signals demand it. If you need a reliable, direct-part-number match for critical panels, this breaker is a precise fit.
- : QO bolt-on mounting, 3 poles, 100 A, 240 V — a compact, clear specification that suits standard 240 V distribution networks.
- Shunt Trip: remote tripping capability enables emergency or controlled shutdown from a separate control circuit, enhancing safety and system coordination.
- Quality and lineage: from Square D, a trusted name in panel protection and electrical distribution, ensuring compatibility with compatible QO platforms.
- Direct part-number match: designed for scenarios where exact part-number compatibility matters, reducing guesswork during maintenance or panel builds.
- Ideal for: maintenance teams, panel builders, and spare inventory where quick, accurate replacement is essential.
Key benefits in real-world use:
- Streamlined panel upgrades and replacements with bolt-on installation that minimizes downtime and wiring changes.
- Remote control capability through the shunt-tripped mechanism supports coordinated safety protocols in distributed systems.
- Consistent 240 V operation across a 3-pole configuration, suitable for multi-phase circuits in commercial and industrial environments.
- Reliable performance and compatibility with Square D QO-style panels, helping ensure compliant protection across your electrical distribution network.
Specs at a glance
- Manufacturer: Square D
- Part Number: QOB31001021
- Product Type: Circuit Breaker
- Amperage: 100 A
- Poles: 3
- Voltage: 240 V
- Mounting: Bolt-On
- Special Feature: Shunt Trip
Available from AmpState. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.
Contact sales@ampstate.com
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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
