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2CDS383001R0488 ABB S303P-Z20 Miniature Circuit Breaker – 3P – Z – 20 A
ABB S303P-Z20 three-pole miniature circuit breaker with a 20 A rated current, Type Z tripping characteristic and 25 kA breaking capacity for sensitive industrial circuit protection.
£99.25
Why Choose the ABB S303P-Z32 Miniature Circuit Breaker?
The ABB S303P-Z32 (2CDS383001R0488) is a premium three-pole miniature circuit breaker (MCB) engineered to provide dependable protection against overloads and short circuits in demanding industrial electrical installations. As part of the trusted ABB S300P series, it combines rapid fault response, robust construction and high breaking capacity for reliable protection of sensitive electrical equipment.
Manufactured to recognised IEC and UL standards, the S303P-Z32 features a compact DIN rail design for easy installation in industrial control panels, switchgear assemblies and power distribution systems. Its fail-safe terminals, dual supply capability and compatibility with ABB System pro M Compact accessories make installation quick and secure.
With a rated current of 20 A, a Type Z tripping characteristic and a 25 kA rated short-circuit breaking capacity, the S303P-Z20 is particularly suited to protecting sensitive electronic equipment, PLC systems, instrumentation and semiconductor devices requiring fast fault disconnection.
Key Advantages
- Industrial-grade three-pole miniature circuit breaker.
- 20 A rated current with Type Z tripping characteristics.
- Rapid protection for sensitive electronic equipment.
- 25 kA rated breaking capacity for demanding industrial installations.
- Suitable for instrumentation, PLCs and semiconductor protection.
- Compact DIN rail mounting for straightforward installation.
Key Features
- ABB S300P series.
- 3-pole configuration.
- 20 A rated current.
- Type Z tripping characteristic.
- Rated operating voltage up to 415 V AC.
- Rated DC voltage up to 125 V DC.
- 25 kA rated breaking capacity.
- Integrated trip indicator.
- Failsafe screw terminals with top or bottom supply connection.
- DIN rail mounting compatible with ABB System pro M Compact accessories.
Reliable Protection for Sensitive Electrical Equipment
The ABB S303P-Z20 automatically disconnects electrical circuits during overload or short-circuit conditions, helping protect cables, PLCs, instrumentation and other sensitive electronic equipment while reducing downtime and preventing costly electrical damage.
Its Type Z tripping characteristic provides rapid operation at relatively low fault currents, making it especially suitable for semiconductor devices, electronic control systems and measurement equipment where fast protection is essential.
Typical Applications
- PLC and automation systems.
- Instrumentation circuits.
- Sensitive electronic equipment.
- Semiconductor protection.
- Industrial control panels.
- Machine building and OEM equipment.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 25 kA | |
| Manufacturer | ABB | |
| Series | S300P | |
| Model | S303P-Z20 | |
| Product ID | 2CDS383001R0488 | |
| EAN | 4016779077705 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 20 A | |
| Number of poles | 3 | |
| Number of protected poles | 3 | |
| Tripping characteristic | Type Z | |
| Rated AC voltage | 415 V AC | |
| Rated DC voltage | 125 V DC | |
| Rated insulation voltage | 500 V | |
| Rated impulse withstand voltage | 6 kV | |
| Rated breaking capacity | 25 kA | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm | |
| Weight | approx. 0.37 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S303P-Z20 used for?
The S303P-Z20 protects sensitive three-phase industrial circuits against overloads and short circuits, making it ideal for PLCs, instrumentation and electronic control equipment.
What is the current rating of this circuit breaker?
This miniature circuit breaker has a 20 A rated current.
What does the Type Z tripping characteristic provide?
Type Z circuit breakers provide rapid disconnection at relatively low fault currents, making them suitable for protecting sensitive electronic and semiconductor equipment.
What is the breaking capacity of the S303P-Z20?
The circuit breaker offers a rated short-circuit breaking capacity of 25 kA.
How is the ABB S303P-Z20 installed?
The breaker mounts directly onto a standard DIN rail inside industrial control panels, switchboards and electrical distribution systems.
Trusted by Industrial Professionals Worldwide
ABB S300P miniature circuit breakers are trusted by electrical engineers, OEMs and panel builders for delivering dependable protection, high breaking performance and reliable operation in demanding industrial environments.
