ABB S202-K30 Miniature Circuit Breaker
- 30A
- 2 Pole
- DIN Rail
Quantity
ABB S202-K30 - 30A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for industrial automation environments, the ABB S202-K30 is a 30-amp, 2-pole miniature circuit breaker. It delivers dependable supplementary protection for motor control circuits and commercial equipment. This current-limiting device mounts onto standard DIN rails, ensuring a secure fit inside control panels. It can also be used as a substitute for the ST202M-K30. Rated for 6kAIC at 480Y/277VAC, it utilizes a K-curve trip profile to prevent nuisance tripping from motor startups.Specifications
| Brand | ABB |
|---|---|
| Part Number | S202-K30 |
| Series | S200 |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC |
| Phase | 1 |
| AIC Rating | 6kA @ 480Y/277VAC |
| 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 applications are best suited for the K-curve trip characteristic on the ABB S202-K30?
The K-curve is designed for circuits with high inrush currents, such as motor control circuits, transformers, solenoids, and other inductive loads. It features an instantaneous magnetic trip point between 10 and 14 times the rated current to prevent nuisance tripping during equipment startup.
Is the ABB S202-K30 rated as a branch circuit breaker or a supplementary protector?
The S202-K30 is recognized under UL 1077 as a supplementary protector. It is designed to provide additional protection within appliances or electrical equipment where branch circuit protection is already provided or not required. It is not a UL 489 branch circuit breaker.
Can the ABB S202-K30 be used to replace the ST202M-K30?
Yes, the S202-K30 can serve as a direct substitute for the ST202M-K30. Both are 2-pole, 30-amp miniature circuit breakers with a K-curve trip profile and mount on standard 35mm DIN rails.
How does the S202-K30 mount inside a control panel?
This miniature circuit breaker snaps directly onto a standard 35mm DIN rail. It features a compact footprint and utilizes screw and clamp terminals that accept 18 to 4 AWG wire.
Is the ABB S202-K30 a current-limiting circuit breaker?
Yes, the S200 series breakers are current-limiting devices. They are designed to interrupt short-circuit currents rapidly, minimizing the let-through energy and protecting downstream control wiring and sensitive components from thermal and mechanical stress.
Can the S202-K30 be reverse fed?
Yes, the ABB S200 series miniature circuit breakers are suitable for reverse feed installations, allowing line power to be connected to either the top or bottom terminals.
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