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P1MB1PB04 – MINIATURE CIRCUIT BREAKER 1P CURVE B 4A
Lovato P1MB1PB04 single-pole miniature circuit breaker with a 4 A rated current, Type B tripping characteristic, one DIN module construction and 10 kA short-circuit breaking capacity.
£18.75
Why Choose the Lovato P1MB1PB04 Miniature Circuit Breaker?
The Lovato P1MB1PB04 is a compact and dependable miniature circuit breaker (MCB) designed to protect low-voltage electrical circuits against overloads and short circuits. As part of the Lovato Electric P1MB series, it provides reliable thermal-magnetic protection for industrial control panels, commercial distribution boards and automation equipment.
Featuring a 4 A rated current, Type B tripping characteristic and 10 kA short-circuit breaking capacity, the P1MB1PB04 is particularly suitable for low-current circuits with limited inrush current. It provides effective protection for instrumentation, control equipment, signalling systems and predominantly resistive electrical loads.
The breaker has a single-pole configuration and occupies only one DIN module, helping conserve valuable space inside electrical enclosures. Standard 35 mm DIN rail mounting and screw-terminal connections enable straightforward integration into new or existing electrical assemblies.
Key Advantages
- Dependable overload and short-circuit protection for low-current circuits.
- 4 A rated current suitable for control, instrumentation and auxiliary applications.
- Type B tripping characteristic for resistive and low-inrush electrical loads.
- 10 kA breaking capacity provides reliable interruption of high fault currents.
- Compact single-pole, one-module design conserves enclosure space.
- Thermal-magnetic operation provides automatic fault disconnection.
- Suitable for compatible AC and DC circuit applications.
- Simple installation on a standard 35 mm DIN rail.
Key Features
- Lovato Electric P1MB series.
- 4 A rated current.
- Type B tripping curve.
- Single-pole configuration.
- 10 kA short-circuit breaking capacity.
- 230 V AC rated operational voltage.
- 60 V DC rated operational voltage.
- Thermal-magnetic tripping mechanism.
- Compact one DIN module construction.
- Screw terminals and DIN rail mounting.
Reliable Protection for Sensitive Electrical Circuits
The Lovato P1MB1PB04 combines thermal and magnetic tripping technologies to protect electrical wiring and connected equipment. The thermal element responds to sustained overload conditions, whilst the magnetic element provides rapid circuit interruption when a high short-circuit current is detected.
Its Type B characteristic is designed for circuits with relatively low starting currents, making the breaker suitable for resistive loads, instrumentation and sensitive control devices. The 4 A rating supports precise protection of smaller conductors and low-power equipment within industrial and commercial electrical systems.
Typical Applications
- Industrial control panels.
- PLC input and output circuits.
- Instrumentation and monitoring equipment.
- Electronic control devices.
- Signalling and alarm circuits.
- Relays, timers and auxiliary controls.
- Building-management systems.
- Low-current lighting and resistive loads.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 4 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | Lovato Electric | |
| Series | P1MB | |
| Model | P1MB1PB04 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 1P | |
| Protected poles | 1 | |
| Rated current | 4 A | |
| Tripping characteristic | Type B | |
| Rated AC voltage | 230 V AC | |
| Rated DC voltage | 60 V DC | |
| Short-circuit breaking capacity | 10 kA | |
| Operating mechanism | Thermal-magnetic | |
| Number of DIN modules | 1 | |
| Mounting type | 35 mm DIN rail | |
| Terminal type | Screw terminals | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | approx. 86.5 × 18 × 80 mm | |
| Conformity standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 and CSA C22.2 No. 235 | |
| Approvals | UL Recognised for Canada and the USA | |
| HS Code | 85362010 |
Frequently Asked Questions
What is the Lovato P1MB1PB04 used for?
The P1MB1PB04 protects low-current electrical circuits against overloads and short circuits, making it suitable for instrumentation, control equipment, signalling systems and resistive loads.
What is the rated current of the P1MB1PB04?
The Lovato P1MB1PB04 has a rated current of 4 A.
What does the Type B tripping characteristic mean?
A Type B miniature circuit breaker is intended for circuits with low starting currents, including resistive loads, electronic controls and sensitive electrical equipment.
What is the short-circuit breaking capacity?
The P1MB1PB04 has a rated short-circuit breaking capacity of 10 kA.
How many DIN modules does the breaker occupy?
The circuit breaker occupies one DIN module and mounts directly onto a standard 35 mm DIN rail.
Can the P1MB1PB04 be used on DC circuits?
Yes. The P1MB1PB04 is suitable for compatible circuits rated up to 60 V DC, subject to the applicable installation requirements.
Trusted Electrical Protection from Lovato Electric
Lovato Electric miniature circuit breakers are trusted by electrical contractors, panel builders and equipment manufacturers to provide dependable circuit protection across industrial, commercial and automation systems.
