Schneider Electric Type B Ther...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$53.44
Schneider Thermal Unit, Type S, Type B, Melting Alloy, Class 20

Schneider Electric Type B Thermal Overload Unit Class 20 Melting Alloy Motor Protection System

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Model: B10.2

In Stock (leaves warehouse same day if ordered before 3pm ET)

$53.44
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Schneider Electric Type B Thermal Overload Unit Class 20 Melting Alloy Motor Protection System

Professional Motor Protection with Melting Alloy Technology

Schneider Electric Type B Thermal Overload Unit delivers reliable motor protection with Class 20 tripping characteristics and melting alloy technology. This professional-grade thermal unit provides consistent overload protection for motor starter applications, featuring Type B configuration for standard motor protection requirements.

Professional Features & Benefits

  • Class 20 Motor Tripping: Provides precise overload protection with standardized tripping characteristics for reliable motor safety and performance.
  • Melting Alloy Technology: Ensures consistent and repeatable thermal protection with proven melting alloy construction for long-term reliability.
  • Type B Configuration: Standard thermal unit design optimized for typical motor starter applications and overload protection requirements.
  • Schneider Electric Quality: Professional-grade construction from a trusted manufacturer with proven electrical protection expertise.
  • Standard Function Option: Straightforward operation and installation for conventional motor protection applications without complex features.
  • Compatible Design: Engineered for seamless integration with compatible motor starter systems and electrical protection equipment.

Technical Specifications

  • China Rohs In Scope: No
  • Country Of Origin: Mexico
  • Environmental Disclosure: ENVPEP2508030EN
  • Eoli Availability Display: No need of specific recycling operations
  • Eu Rohs Directive: Not applicable, out of EU RoHS legal scope
  • Function Option: Standard
  • Function Option Id: STANDARD
  • Html Descr: Starter Thermal Unit:Type: B
  • Legacy Weee Scope: Out
  • Manufacturer: Schneider Electric
  • Motor Tripping Class: 20
  • Packaging Made With Recycled Cardboard: Yes
  • Packaging Without Single Use Plastic: No
  • Product Availability: Stock - Normally stocked in distribution facility
  • Product Contributes To Saved And Avoided Emissions: No
  • Range Of Product: B
  • Recycled Metal Content At Cr Level: 0%
  • Relationshiptype: Compatible relationship
  • Return Indicator: Y
  • Returnability: Yes
  • Rohs Eur Full Compliance Status: Not applicable, out of EU RoHS legal scope
  • Rohs Eur In Scope: No
  • Rohs Eur Status: Will not be Compliant
  • Sustainable Packaging: No
  • Take Back: No
  • Thermal Overload Type: melting alloy
  • Tier: 1
  • Tier Id: 1
  • Total Lifecycle Carbon Footprint: 13 kg CO2 eq.
  • Use Carbon Footprint: 12.63879899
  • With Recycled Cardboard: Yes
  • Without Single Use Plastic: No
  • Department: Electrical

Professional Applications

  • Motor Starter Protection Systems
  • Industrial Motor Control Applications
  • Commercial HVAC Motor Protection
  • Manufacturing Equipment Overload Protection
  • Electrical Panel Integration
  • Professional Motor Control Centers

Why Choose Schneider Electric Quality?

Schneider Electric thermal overload units provide proven reliability with melting alloy technology and Class 20 tripping characteristics. Professional-grade construction ensures consistent motor protection performance in demanding electrical applications.

Manufacturer Resources

Product Specs

China Rohs In Scope:
No
Country Of Origin:
Mexico
Environmental Disclosure:
ENVPEP2508030EN
Eoli Availability Display:
No need of specific recycling operations
Eu Rohs Directive:
Not applicable, out of EU RoHS legal scope
Function Option:
Standard
Html Descr:
Starter Thermal Unit:Type: B
Legacy Weee Scope:
Out
Motor Tripping Class:
20
Packaging Made With Recycled Cardboard:
Yes
Packaging Without Single Use Plastic:
No
Product Availability:
Stock - Normally stocked in distribution facility
Product Contributes To Saved And Avoided Emissions:
No
Range Of Product:
B
Recycled Metal Content At Cr Level:
0%
Relationshiptype:
Compatible relationship
Sustainable Packaging:
No
Take Back:
No
Thermal Overload Type:
melting alloy
Tier:
1
Total Lifecycle Carbon Footprint:
13 kg CO2 eq.
Use Carbon Footprint:
12.63879899
With Recycled Cardboard:
Yes
Without Single Use Plastic:
No
Department:
Electrical
Product Group:
Electrical Mounting Hardware & Accessories

Schneider B10.2 – Frequently Asked Questions

1) How do I pick the right Schneider Type B thermal unit for my motor?
You size the thermal unit to the motor's full load current, not to the starter. Each Schneider Type B melting alloy thermal unit covers a narrow FLC band when three units are used in the starter: B6.90 covers 4.01 to 4.68 amps, B10.2 covers 6.20 to 7.12, B11.5 covers 7.13 to 8.15, and B79.0 covers 35.5 to 38.2. Read the nameplate FLA off the motor and order the unit whose band contains it. Three-phase starters take three units, so order in threes.
2) What does Class 20 mean on a thermal overload unit, and when should I use Class 10 instead?
Class 20 means the overload will trip within 20 seconds at six times the motor's full load current. That extra time compared with a Class 10 unit lets a motor with a longer or loaded start, like a compressor, conveyor, or a high inertia fan, come up to speed without nuisance tripping. Class 10 is the choice for quick-starting motors and for submersible or hermetic loads that need faster protection. The Schneider Type B units are Class 20.
3) Does a Schneider Type B thermal unit drop into my existing motor starter?
Type B is the heater designation, and it only fits starters built to take a Type B unit. Check the existing unit in the starter: if the part number on it starts with B, these interchange directly by number. If your starter carries a different thermal unit series, a Type B will not seat correctly and you need the series that matches the starter.
4) My motor nameplate reads 7.5 amps. Which Type B unit do I order?
B11.5. It covers 7.13 to 8.15 amps with three thermal units installed, so 7.5 falls inside that band. B10.2 stops at 7.12, so it would run right at the edge and nuisance trip. Order three of the B11.5 for a three-phase starter.
5) What happens if I install a thermal unit that is one size too large?
The motor loses its protection. A melting alloy unit is calibrated to a narrow current band, so a unit rated above the motor's full load current will let the motor draw sustained overcurrent without melting the alloy, and the windings take the damage instead. Oversizing is also an NEC violation on motor overload protection. If the nameplate FLA sits between two bands, take the unit whose band the FLA falls into, not the next one up.
6) Is this a bimetallic or melting alloy overload, and what happens when it trips?
Melting alloy, also called a solder pot. Overload current heats the alloy until it melts, the ratchet wheel is freed, and the contacts open. It stays tripped until the alloy cools and solidifies, then you reset it by hand at the starter. There is no automatic reset with this style, which is what you want on a motor that should not restart on its own.
7) Why does the amp rating on the thermal unit say '3 T.U.' and does that change my sizing?
Yes, it changes the sizing. The listed current bands are for a three thermal unit installation, which is the normal three-phase arrangement with one unit in each leg. If your starter uses two units, the band shifts and you would select from the two-unit column instead. Match the nameplate FLA against the three-unit band only when all three legs are protected.
8) Do I have to order three thermal units, or is one enough?
For a three-phase motor starter you need three, one per phase leg, and all three must be the same part number. The current bands on these units are published for a three unit install. Single-phase starters typically use two. Ordering a single unit only makes sense when you are replacing one that failed, and even then the other two should match it.
9) Is the Schneider Type B thermal unit RoHS compliant?
It sits outside EU RoHS legal scope, so the directive does not apply to it and no RoHS compliance status is carried. That is normal for melting alloy thermal units, since the solder alloy is central to how the device works. For facilities tracking environmental data, the unit is built in Mexico and carries environmental disclosure ENVPEP2508030EN with a total lifecycle carbon footprint of 13 kg CO2 eq.
How fast can I get the Schneider B10.2 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Schneider B10.2 come with a warranty?
Absolutely. The Schneider B10.2 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Schneider B10.2?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Schneider B10.2 from ZenSupply?
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