ABB A2N150TW-2 Molded Case Circuit Breaker
- 150A
- 2 Pole
- Unit Mount
Quantity
ABB A2N150TW-2 - 150A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for versatile commercial applications, the ABB A2N150TW-2 is a 2-pole MCCB from the Formula A2 series. It utilizes a fixed thermal-magnetic trip mechanism to deliver precise overcurrent protection in a compact form factor. This unit-mount breaker fits ABB ReliaGear panelboards and DIN rail enclosures. It replaces the discontinued GE THQD22150 for maintaining older systems. With a 25kAIC capacity at 240VAC, this 150A breaker is HACR rated and reverse-feedable for flexible installation.Specifications
| Brand | ABB |
|---|---|
| Series | Formula |
| Amperage | 150A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 25kA @ 250VDC |
| Frame Type | A2A |
|---|---|
| Terminal Type | Lugs |
| For Use With | ABB ReliaGear Panelboards, ABB Formula Panelboards, DIN Rail Enclosures |
| Wire Gauge | 1 AWG - 250 kcmil (Cu/Al) |
| Max Wire | 250 kcmil |
| Min Wire | 1 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Padlock Attachment, Rotary Handle, Lug Kits |
|---|---|
| Accessories | Lugs sold separately |
| 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
8 answersWhich panelboards are compatible with the A2N150TW-2 circuit breaker?
This Formula series breaker is designed for use in ABB ReliaGear and ABB Formula panelboards. It is also compatible with standard DIN rail enclosures for standalone applications.
How is the A2N150TW-2 breaker mounted in an enclosure?
It features a unit mount design that supports both chassis and rear mounting configurations. The breaker can also be secured to a DIN rail when used outside of a traditional panelboard.
What wire sizes do the front terminal lugs accept?
The factory-installed lugs accept copper or aluminum conductors ranging from 1 AWG to 250 kcmil.
What type of trip unit is equipped on the A2N150TW-2?
It features a fixed thermal-magnetic (TMF) trip unit with Long-Time and Instantaneous (LI) protection functions. Both the thermal overload and magnetic short-circuit thresholds are fixed and non-adjustable.
What is the instantaneous magnetic trip threshold for this 150A breaker?
The fixed magnetic trip is set at 1500A, providing instantaneous protection against severe short circuits.
Can the A2N150TW-2 be used in DC electrical systems?
Yes, in addition to its AC ratings, this breaker is rated for up to 250VDC with a 25kA interrupting capacity, making it suitable for specific direct current applications.
What safety standards does the ABB A2N150TW-2 meet?
This molded case circuit breaker is UL 489 listed for low voltage applications, ensuring safe operation for branch circuit protection.
What frame size does the A2N150TW-2 belong to?
It is part of the ABB Formula A2A frame family, specifically built on the A2N 250A frame size.
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