ABB S203-C50 Miniature Circuit Breaker
- 50A
- 3 Pole
- DIN Rail
Quantity
ABB S203-C50 - 50A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Part of the System pro M compact S200 series, this ABB 50A, 3-pole miniature circuit breaker provides supplementary protection for commercial and industrial applications. It is engineered for 480Y/277VAC electrical systems. The unit installs onto standard DIN rails, making it an ideal fit for high-density control panels and automation enclosures. Rated at 6kAIC, the breaker features a C-curve thermal-magnetic trip mechanism designed for loads with moderate inrush currents.Specifications
| Brand | ABB |
|---|---|
| Series | S200 |
| Amperage | 50A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 6kA @ 480Y/277VAC |
| Frame Type | S203 |
|---|---|
| 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 | C |
| 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 is the trip curve characteristic of the S203-C50?
This breaker features a C-curve thermal-magnetic trip profile. It is designed to trip instantaneously at 5 to 10 times the rated current, making it suitable for moderate inrush currents found in general commercial and industrial applications.
Is the ABB S203-C50 rated for branch circuit protection?
No. This breaker is UL 1077 recognized for supplementary protection. If your application requires a UL 489 listed breaker for primary branch circuit protection, you will need a different series, such as the ABB SU200M line.
Which accessories are compatible with this miniature circuit breaker?
The S203-C50 is compatible with ABB S200 series accessories. This includes auxiliary contacts, bell alarms, shunt trips, undervoltage releases, and ABB busbar systems.
What type of DIN rail is required for installing the S203-C50?
This breaker snaps directly onto standard 35mm top-hat DIN rail systems. It features a fast clip attachment for quick installation and removal without specialized tools.
Can I use a busbar and wire simultaneously on this breaker?
Yes. The S203-C50 features a dual terminal design that allows for the simultaneous connection of a wire and a compatible busbar, providing flexible panel assembly.
What is the ABB global part number for the S203-C50?
The global catalog or article number for this specific 50A, 3-pole, C-curve breaker is 2CDS253001R0504.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.