ABB S202-K20 Miniature Circuit Breaker
- 20A
- 2 Pole
- DIN Rail
Quantity
ABB S202-K20 - 20A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Engineered for motor control applications, the ABB S202-K20 is a 2-pole miniature circuit breaker rated for 20 amps. It provides reliable supplementary protection for commercial and industrial systems. This unit snaps securely onto standard DIN rails, making it an ideal fit for high-density control panels. It serves as a direct substitute for the ST202M-K20. Featuring a K-curve trip characteristic, it handles moderate inrush currents and delivers a 6kAIC rating at 480Y/277VAC.Specifications
| Brand | ABB |
|---|---|
| Series | S200 |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 6kA @ 480Y/277VAC |
| Frame Type | S202 |
|---|---|
| Terminal Type | Screw/Clamp Terminal |
| For Use With | DIN Rail Enclosures, Control Panels |
| Wire Gauge | 18-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 18 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | K |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Bell Alarm, Shunt Trip, Undervoltage Release, Padlock Attachment, Motor Operator, Busbar System |
|---|---|
| Accessories | Auxiliary Contact, Shunt Trip, Signal Contact, Undervoltage Release |
| Standards | CSA C22.2 No. 235, IEC 60898-1, IEC 60947-2, UL 1077 |
| Approval | CE, CSA, IEC, UR, VDE |
| Temp Rating | -25C to 55C |
| Construction Features | Current Limiting, Reverse Feed, Trip-Free Mechanism, RoHS Compliant |
Product FAQs
6 answersWhat does the K trip curve signify on the ABB S202-K20?
The K trip characteristic is engineered for circuits with high inrush currents, magnetically tripping at 8 to 14 times the rated current. It is ideal for protecting motors, transformers, and other highly inductive loads.
Is the ABB S202-K20 rated as a UL 489 branch circuit breaker?
No, this breaker is UL 1077 recognized as a supplementary protector. If your application requires a UL 489 listed branch circuit breaker, you must use the ABB S200U or S200UP series.
What type of DIN rail is required to mount this circuit breaker?
The S202-K20 mounts directly onto any standard 35mm DIN rail, making it suitable for high-density control panels and machinery electrical systems.
Can the ABB S202-K20 be reverse fed?
Yes, the ABB S200 series miniature circuit breakers feature a trip-free mechanism and are fully suitable for reverse feed applications.
What accessories are compatible with the S202-K20?
This breaker accepts standard ABB System pro M compact accessories. Compatible add-ons include side-mount or bottom-fitting auxiliary contacts, bell alarms, shunt trips, and undervoltage releases.
Can this breaker replace older ABB models?
Yes, the S202-K20 serves as a direct substitute for the legacy ST202M-K20 miniature circuit breaker.
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