ABB SU203M-K32 Circuit Breaker
- 32A
- 3 Pole
- DIN Rail
Quantity
ABB SU203M-K32 3 Pole Circuit Breaker
New
Quantity
Description
ABB SU203M-K32 3 Pole Circuit Breaker
The ABB SU203M-K32 is a 3 Pole molded case circuit breaker with a current rating of 32 Amps and a voltage rating of 277/480VAC, 48/96VDC. It has an interrupting rating of 10kAIC at 480Y/277VAC.
Specifications
| Brand | ABB |
|---|---|
| Series | SU200M |
| Amperage | 32A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC, 96VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 480Y/277VAC, 10kA @ 96VDC |
| Terminal Type | Screw/Clamp Terminal |
|---|---|
| Wire Gauge | 18-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 18 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Standards | WEEE, RoHS, REACh |
|---|---|
| Approval | CE, UKCA, CSA, IEC/EN, UL |
| Temp Rating | -25 to 55 °C |
Product FAQs
7 answersWhat does the K trip curve mean on the SU203M-K32?
The K curve is designed for loads with high inrush currents, such as motors and transformers. It typically trips between 10 and 14 times the rated current, preventing nuisance tripping during motor start-ups while providing fast short-circuit protection.
Is the SU203M-K32 rated for branch circuit protection?
Yes, the SU200M series is UL 489 listed. This means the breaker is approved for use as primary branch circuit protection in the US, unlike UL 1077 devices which are only rated as supplementary protectors.
How is the ABB SU203M-K32 circuit breaker mounted?
This miniature circuit breaker is designed for quick installation on a standard 35 mm DIN rail. It features a compact design suitable for control panels and industrial enclosures.
What wire sizes are compatible with the terminals on this breaker?
The failsafe bi-directional cylinder-lift terminals accept 18 to 4 AWG conductors or 18 to 8 AWG busbars.
What is the ABB global part number for the SU203M-K32?
The global ABB part number for this breaker is 2CDS273337R0537.
What applications are best suited for this 3-pole K-curve breaker?
With its 3-pole configuration and K-curve characteristics, it is ideal for protecting three-phase motor control circuits, transformers, HVAC equipment, and industrial machinery with high inductive loads.
Are the terminals on the SU203M-K32 finger-safe?
Yes, the breaker features an IP20-rated housing with finger-safe terminals to protect installers and operators from accidental contact with live electrical parts.
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