ABB / General ElectricTMQD22060
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ABB / General Electric TMQD22070 Molded Case Circuit Breaker
- 70A
- 2 Pole
- Bolt-On
ABB / General Electric
TMQD22070
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
TMQD22070
Quantity
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ABB / General Electric TMQD22070 - 70A 2 Pole Molded Case Circuit Breaker
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Description
Built for commercial metering, this 70A thermal-magnetic breaker functions primarily as a tenant main disconnect. It features a fixed trip unit and is HACR rated to support HVAC loads. The breaker mounts into GE Meter Mod stacks and compatible panelboards. While superseded by the TMQV22070, this TMQD frame remains essential for maintaining older enclosures. Delivering an extra-high 100kAIC rating at 120/240VAC, it ensures maximum safety during severe short circuits.Specifications
| Brand | ABB / General Electric |
|---|---|
| Part Number | TMQD22070 |
| Series | TMQD |
| Amperage | 70A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 120/240VAC |
| Frame Type | TMQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | GE Meter Mod Meter Stacks, GE Panelboards |
| Wire Gauge | 6 AWG - 1/0 AWG (Cu/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 |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Extra High Interrupting Capacity, Non-Interchangeable Trip, Tenant Main |
Product FAQs
6 answersWhich enclosures are designed to accept the TMQD22070 breaker?
This bolt-on breaker is primarily used as a tenant main disconnect in GE Meter Mod meter stacks. It is also compatible with GE panelboards configured for TMQD frame breakers.
What wire sizes and materials are compatible with the TMQD22070 load lugs?
The factory-installed load side lugs accept 6 AWG to 1/0 AWG wire. They are rated for use with both copper (Cu) and aluminum (Al) conductors.
What does the 100kAIC rating mean for this circuit breaker?
The 100kAIC rating indicates that the breaker can safely interrupt up to 100,000 amps of fault current at 240V. This extra-high interrupting capacity makes it suitable for commercial and industrial applications with high available fault currents.
What is the difference between the TMQD22070, THQD22070, and TQD22070?
These breakers share the same physical dimensions and bolt-on mounting, but they have different short circuit interrupting ratings. The TQD is rated for 10kAIC, the THQD is rated for 22kAIC, and the TMQD is rated for 100kAIC at 240V. You must use a breaker that meets or exceeds the available fault current of your electrical system.
How is the TMQD22070 installed into the panel?
It utilizes a bolt-on connection to secure directly to the panel busbar. This provides a highly reliable, vibration-resistant electrical connection compared to standard plug-in breakers.
How does the LI trip function operate on this breaker?
The LI (Long-Time and Instantaneous) designation means the breaker uses a thermal-magnetic trip unit. The thermal element provides long-time delay protection against continuous overloads, while the magnetic element provides instantaneous tripping during severe short circuits.
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