ABB S201U-K5 Miniature Circuit Breaker
- 5A
- 1 Pole
- DIN Rail
Quantity
ABB S201U-K5 - 5A 1 Pole Miniature Circuit Breaker
New
Quantity
Description
Part of the S200U series, this 5A miniature circuit breaker delivers robust branch circuit protection for commercial motor control applications. The current-limiting design ensures rapid response to electrical faults. It installs easily onto standard 35mm DIN rail enclosures. For system upgrades, note that this component has been replaced by the SU201M-K5 model. Rated for 10kAIC at 240VAC, it features a K-curve trip characteristic optimized to handle high magnetic start-up currents.Specifications
| Brand | ABB |
|---|---|
| Series | S200U |
| Amperage | 5A |
| Poles | 1 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | S201 |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail Panels, 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 |
| Available Options | Auxiliary Switch, Bell Alarm, Shunt Trip, Busbar System, Rotary Handle, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | -25C to 55C |
| Construction Features | Current Limiting, Reverse Feed, Trip-Free Mechanism |
Product FAQs
7 answersWhat does the K trip curve indicate for this breaker?
The K curve provides an instantaneous trip at 8 to 14 times the rated current. This characteristic is specifically designed for highly inductive loads like motors and transformers, allowing for high inrush currents without nuisance tripping while still providing sensitive cable protection.
Is the S201U-K5 rated for UL 489 or UL 1077 applications?
The S200U series is UL 489 listed for primary branch circuit protection. Unlike UL 1077 supplementary protectors, this breaker can be used as a standalone branch protective device in industrial control panels.
Can the ABB S201U-K5 be reverse fed?
Yes, ABB S200U series miniature circuit breakers feature a trip-free mechanism and are suitable for reverse feeding. Line and load connections can be wired to either the top or bottom terminals.
Can this breaker be used in DC control circuits?
Yes, the single-pole S201U-K5 is rated for up to 60VDC, making it suitable for 24VDC and 48VDC control circuits and power supplies.
What busbars are compatible with the S201U-K5?
The S201U-K5 is compatible with ABB PS...BP-C series busbars designed specifically for UL 489 miniature circuit breakers. Do not use standard UL 1077 busbars, as they do not meet the spacing requirements for UL 489 branch circuit protection.
What is the recommended terminal tightening torque for the S201U-K5?
The box lug terminals on the S201U-K5 should be torqued to 25 in-lbs (2.8 Nm) using a #2 Pozidriv screwdriver.
What is the direct replacement for the S201U-K5?
ABB has replaced the S200U series with the SU200M series. The direct replacement for this component is the SU201M-K5.
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