ABB / General Electric TMQB21100 Molded Case Circuit Breaker
- 100A
- 2 Pole
- Bolt-On
Quantity
ABB / General Electric TMQB21100 - 100A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Engineered for tenant main applications, the GE TMQB21100 delivers 100 amps of reliable overcurrent protection. This 2-pole molded case breaker features a fixed thermal-magnetic trip unit and is HACR rated. It bolts securely into GE Meter Mod III modular metering stacks, providing a robust connection for multi-family setups. With a high interrupting capacity of 42kAIC at 120/240VAC, it ensures superior safety against severe fault currents.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TMQB21100 |
| Series | TMQB |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 42kA @ 120/240VAC |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | GE Meter Mod III Modular Metering Stacks |
| Wire Gauge | 6-1/0 AWG (Cu), 4-1/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 6 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Tenant Main, High Interrupting Capacity |
Product FAQs
5 answersWhat is the primary application for the TMQB21100 circuit breaker?
This breaker is primarily used as a tenant main disconnect in GE Meter Mod III modular metering stacks for multi-family residential and commercial buildings.
Is the TMQB21100 suitable for environments with high available fault currents?
Yes, with an interrupting capacity of 42kAIC at 120/240VAC, it is engineered to safely clear severe fault currents often found in commercial and multi-tenant electrical services.
Can this breaker be used for heating and cooling circuits?
Yes, the TMQB21100 is HACR rated, making it fully certified to protect heating, air conditioning, and refrigeration equipment.
Are the box lugs on this breaker dual-rated for different wire materials?
Yes, the included box lugs are dual-rated to accept either copper or aluminum conductors, providing flexibility during installation.
How does the thermal-magnetic trip unit operate on the TMQB21100?
The trip unit provides two levels of protection: a long-time thermal response to prevent overheating from sustained overloads, and an instantaneous magnetic response to quickly clear short circuits.
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