ABB A1N100TW-2 Molded Case Circuit Breaker
- 100A
- 2 Pole
- Unit Mount
Quantity
ABB A1N100TW-2 - 100A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
The A1N100TW-2 is a 2-pole, 100A molded case circuit breaker from ABB's compact Formula A1 frame series. Designed for commercial and industrial applications, it provides reliable overcurrent protection for 240VAC and 250VDC systems. This unit mount breaker installs into OEM enclosures, DIN rail setups, and ReliaGear panelboards. It also serves as a functional replacement for discontinued THQC22100 breakers, though mounting dimensions differ. Rated at 25 kAIC, it features a fixed TMF trip.Specifications
| Brand | ABB |
|---|---|
| Series | Formula |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 10kA @ 250VDC |
| Frame Type | A2A |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB Formula Panelboards, ReliaGear Panelboards, OEM Enclosures, DIN Rail |
| 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, Terminal Shields, Lug Kits |
|---|---|
| Accessories | Front Terminals Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
5 answersCan the ABB A1N100TW-2 replace older GE THQC series breakers?
Yes, the A1N100TW-2 serves as a functional replacement for the discontinued GE THQC22100 circuit breaker. Because the physical dimensions differ, modifications to the enclosure or mounting hardware may be required during retrofitting.
How is the A1N100TW-2 circuit breaker mounted?
This Formula A1 frame breaker is designed for unit mounting. It can be installed directly into OEM enclosures, ReliaGear panelboards, or mounted onto a standard DIN rail using the appropriate ABB hardware.
Which panelboards are compatible with the A1N100TW-2 breaker?
This breaker is designed for use in ABB Formula panelboards and GE ReliaGear panelboards. It is also suitable for custom control panels that accept unit-mount A1 frame breakers.
Does the A1N100TW-2 support DC voltage applications?
Yes, in addition to AC systems, this breaker is rated for 250VDC applications. It provides a 10kA interrupting capacity for direct current power distribution and motor control circuits.
Are the trip settings adjustable on the A1N100TW-2?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time thermal protection and instantaneous magnetic trip thresholds are factory-set and cannot be adjusted in the field.
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