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2CDS271527R0528 ABB SU201DC-Z30 30 A 1P Type Z DC Miniature Circuit Breaker 14 kA
ABB SU201DC-Z30 is a 30 A single-pole Z-characteristic SU200DC miniature circuit breaker with a 14 kA short-circuit current rating for sensitive DC electronic, control, automation and auxiliary circuits.
£70.31
Why Choose the ABB SU201DC-Z30 Miniature Circuit Breaker?
The ABB SU201DC-Z30 is a specialised single-pole DC miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection for sensitive DC electrical circuits. Part of the ABB SU200DC series, this model combines a 30 A rated current, Z tripping characteristic and high short-circuit capability for commercial and industrial DC applications.
The Z characteristic provides sensitive magnetic protection and is particularly suitable for electronic equipment, control systems and other circuits where comparatively low fault-current multiples require rapid interruption. This characteristic makes the SU201DC-Z30 useful where enhanced protection of sensitive loads is required while retaining a substantial 30 A continuous current rating.
With a 14 kA short-circuit current rating, single-pole configuration and dedicated DC design, the SU201DC-Z30 provides robust branch-circuit protection in a compact modular format. Its thermal-magnetic protection principle helps safeguard conductors and connected equipment against both sustained overloads and short-circuit faults.
Key Advantages
- Reliable overload and short-circuit protection for DC circuits.
- 30 A rated current for higher-current DC applications.
- Z tripping characteristic for sensitive magnetic overcurrent protection.
- High 14 kA short-circuit current rating.
- Compact single-pole construction for space-efficient panel installation.
- Thermal-magnetic operation provides protection against overloads and short circuits.
- Suitable for sensitive electronic, automation and control equipment.
Key Features
- ABB SU200DC series miniature circuit breaker.
- 30 A rated current.
- Z tripping characteristic.
- 1-pole configuration.
- 14 kA short-circuit current rating.
- Designed for DC circuit protection.
- Thermal release for sustained overload protection.
- Magnetic release for rapid short-circuit interruption.
- Z characteristic suited to sensitive electronic and control loads.
- Compact modular construction for DIN-rail control and distribution assemblies.
Sensitive Protection for Higher-Current DC Circuits
The ABB SU201DC-Z30 automatically disconnects a circuit when excessive current results from an overload or short-circuit condition. Its thermal element responds to sustained overloads, while the magnetic release provides rapid operation under short-circuit conditions, helping minimise electrical and thermal stress on conductors and connected equipment.
The Z characteristic distinguishes this model from general-purpose or higher-inrush characteristics by providing sensitive magnetic response at comparatively low multiples of rated current. This makes the SU201DC-Z30 particularly useful for DC electronic, automation, instrumentation and control circuits requiring a 30 A protective device with sensitive fault response.
Typical Applications
- Industrial DC control circuits.
- Sensitive electronic equipment.
- Automation and instrumentation systems.
- DC auxiliary power distribution.
- Industrial machinery and control panels.
- Commercial and industrial DC distribution systems.
- Higher-current circuits requiring sensitive Z-characteristic protection.
Technical Specifications
| Series | SU200DC |
|---|---|
| ABB order code | 2CDS271527R0528 |
| Product type | DC miniature circuit breaker (MCB) |
| Rated current | 30 A |
| Number of poles | 1 |
| Tripping characteristic | Z |
| Short-circuit current rating | 14 kA |
| Operating principle | Thermal-magnetic |
| Product group | DC / Traction MCB |
| Application | DC circuit protection |
| Mounting type | Modular DIN-rail installation |
Frequently Asked Questions
What is the ABB SU201DC-Z30 used for?
The ABB SU201DC-Z30 provides overload and short-circuit protection for DC electrical circuits and is particularly suitable for sensitive electronic, control, automation and auxiliary applications.
What is the rated current of the SU201DC-Z30?
The SU201DC-Z30 has a rated current of 30 A and uses a single-pole configuration.
What tripping characteristic does the SU201DC-Z30 use?
The SU201DC-Z30 uses a Z tripping characteristic, providing sensitive magnetic overcurrent protection for electronic and control circuits where relatively low fault-current multiples require rapid interruption.
What is the short-circuit rating of the ABB SU201DC-Z30?
The ABB SU201DC-Z30 has a specified 14 kA short-circuit current rating.
Where is the SU201DC-Z30 typically installed?
The SU201DC-Z30 is suitable for DC distribution boards, industrial control panels, automation systems, instrumentation equipment and auxiliary circuits requiring sensitive Z-characteristic protection.
Trusted DC Circuit Protection from ABB
ABB SU200DC miniature circuit breakers provide dependable overload and short-circuit protection for commercial and industrial DC systems, combining high short-circuit capability with specialised tripping characteristics for electronic, control, automation and auxiliary circuits.
