JHF80404B - Circuit Breaker HAGER - Free user manual and instructions
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| Product Type | Miniature Circuit Breaker (MCB) |
| Brand | HAGER |
| Model | JHF80404B |
| Number of Poles | 4 |
| Rated Current (In) | 80 A |
| Tripping Curve | B |
| Rated Voltage (Ue) | 400 V AC |
| Insulation Voltage | 500 V |
| Rated Breaking Capacity | 10 kA per IEC 60898-1 |
| Mounting Type | 35 mm DIN rail |
| Protection Degree | IP20 |
| Connection Capacity | Up to 35 mm² (solid/stranded) |
| Tightening Torque | 2.0 Nm |
| Mechanical Endurance | 20,000 operations |
| Ambient Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +70°C |
| Compliance Standards | IEC/EN 60898-1 |
| Width in Modules | 4 (72 mm) |
| Depth | 70 mm |
| Weight | 0.5 kg |
| Functions | Overload and short-circuit protection |
| Maintenance | No special maintenance, periodic visual check |
| Safety Features | Finger-safe terminals, sealed calibration |
| General Information | Designed for residential and commercial distribution boards |
Frequently Asked Questions - JHF80404B HAGER
What does the B curve in the model JHF80404B mean?
The B curve indicates that the circuit breaker will trip at instantaneous currents between 3 and 5 times the rated current (In). It is typically used for residential or lighting circuits where inrush currents are low.
Can the JHF80404B be used for three-phase applications?
Yes, the 4-pole design allows it to protect three-phase systems with a neutral, commonly used in commercial and industrial installations.
What is the maximum wire size that can be connected?
The connection capacity is up to 35 mm² for solid or stranded copper conductors. Ensure proper stripping and tightening torque of 2.0 Nm.
Is this circuit breaker suitable for DC applications?
No, the JHF80404B is designed for AC circuits only. For DC applications, use a dedicated DC circuit breaker to ensure safe operation.
What is the breaking capacity of this breaker?
It has a rated breaking capacity of 10 kA according to IEC 60898-1, meaning it can safely interrupt fault currents up to 10,000 amperes.
How do I install the JHF80404B on a DIN rail?
Simply clip the breaker onto a 35 mm DIN rail. Ensure it snaps firmly into place. Connect the incoming and outgoing conductors to the marked terminals, observing the correct torque.
What protection does the JHF80404B provide?
It provides overload protection (thermal) and short-circuit protection (magnetic). The B curve ensures fast tripping on high-fault currents.
Is there any maintenance required?
No regular maintenance is required. Periodically check for dust or moisture and verify that all connections are tight. Do not attempt to open or repair the unit; replace it if faulty.
Can the JHF80404B be used as a main switch?
While it can switch loads, it is primarily designed for overload and short-circuit protection. If used as a main switch, ensure it is not operated frequently under load.
What is the degree of protection provided by the enclosure?
The terminal faces have IP20 protection, meaning they are protected against fingers and objects larger than 12.5 mm. Installation in a suitable enclosure provides higher protection.
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