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2CDS381001R0488 ABB S301P-Z20 Miniature Circuit Breaker – 1P – Z – 20 A
ABB S301P-Z20 single-pole miniature circuit breaker with a 20 A rated current, Z tripping characteristic and 25 kA breaking capacity for protecting sensitive industrial electrical circuits.
£28.53
Why Choose the ABB S301P-Z20 Miniature Circuit Breaker?
The ABB S301P-Z20 (2CDS381001R0488) is a premium single-pole miniature circuit breaker (MCB) engineered to provide reliable protection against overloads and short circuits in demanding industrial electrical installations. As part of the trusted ABB System pro M compact S300P series, it combines exceptional breaking capacity with fast fault detection, making it ideal for protecting sensitive electronic equipment and industrial control systems.
Featuring a Z tripping characteristic, the S301P-Z20 is specifically designed for applications requiring rapid magnetic tripping at comparatively low fault-current levels. This makes it particularly suitable for PLCs, instrumentation, semiconductor equipment, communication systems and other sensitive electronic circuits where fast disconnection helps prevent equipment damage.
With a 20 A rated current, single-pole configuration and DIN rail mounting, this miniature circuit breaker is ideally suited to industrial control panels, OEM machinery, automation systems and commercial electrical installations requiring dependable circuit protection.
Key Advantages
- Compact single-pole miniature circuit breaker for industrial installations.
- 20 A rated current with Z tripping characteristic.
- Fast protection for sensitive electronic and control circuits.
- Reliable overload and short-circuit protection.
- 25 kA breaking capacity for demanding industrial environments.
- Quick DIN rail installation simplifies panel assembly and maintenance.
Key Features
- ABB System pro M compact S300P series.
- 20 A rated current.
- Z tripping characteristic.
- Single-pole (1P) configuration.
- 240 V AC rated voltage.
- 72 V DC rated voltage.
- 25 kA ultimate short-circuit breaking capacity.
- Thermal overload and magnetic short-circuit protection.
- DIN rail mounting.
- Red ON / Green OFF contact position indicator.
Fast Protection for Sensitive Electrical Equipment
Miniature circuit breakers automatically disconnect electrical circuits whenever overloads or short circuits occur, helping protect wiring, industrial machinery and connected equipment from electrical damage. Their resettable design enables systems to be quickly restored once the fault has been rectified.
The Z tripping characteristic is intended for circuits containing sensitive electronic equipment where very fast magnetic tripping is required. It is commonly specified for PLC systems, instrumentation, semiconductor equipment and industrial automation controls where equipment protection is critical.
Typical Applications
- Industrial control panels.
- PLC and automation systems.
- Instrumentation and monitoring equipment.
- Sensitive electronic control circuits.
- OEM machinery.
- Industrial and commercial electrical distribution.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 25 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S300P | |
| Model | S301P-Z20 | |
| SKU | 2CDS381001R0488 | |
| EAN | 4016779080095 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 20 A | |
| Tripping characteristic | Z | |
| Number of poles | 1P | |
| Rated voltage | 240 V AC | |
| Rated DC voltage | 72 V DC | |
| Maximum operating voltage (UL/CSA) | 480Y/277 V AC, 125 V DC | |
| Frequency | 50 / 60 Hz | |
| Ultimate breaking capacity (Icu) | 25 kA | |
| Protection rating | IP20 (IP40 when installed in a suitable enclosure) | |
| Rated insulation voltage (Ui) | 500 V | |
| Impulse withstand voltage (Uimp) | 6 kV | |
| Operating temperature | -40 °C to +70 °C | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | 88 × 17.5 × 67.6 mm | |
| Weight | Approx. 124 g | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S301P-Z20 used for?
The S301P-Z20 protects electrical circuits against overloads and short circuits, particularly sensitive electronic, instrumentation and industrial control circuits.
What is the rated current of this circuit breaker?
The ABB S301P-Z20 has a 20 A rated current.
What does the Z tripping characteristic provide?
The Z characteristic provides rapid magnetic tripping at comparatively low fault-current levels, making it ideal for protecting sensitive electronic equipment and PLC systems.
What is the breaking capacity of the S301P-Z20?
The circuit breaker provides an ultimate short-circuit breaking capacity of 25 kA at 240 V AC and 72 V DC.
How is the ABB S301P-Z20 installed?
The circuit breaker is designed for installation on a standard DIN rail within electrical distribution boards, industrial control panels and machinery enclosures.
Trusted by Electrical Professionals Worldwide
ABB S300P miniature circuit breakers are trusted by electrical engineers, OEM manufacturers and panel builders worldwide for delivering dependable circuit protection, exceptional breaking performance and long-term operational reliability.
