HIMA ETA8345 30A H7201 Panel Mount Circuit Breaker
Manufacturer: HIMA
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Part Number: ETA8345 30A H7201
Condition：New with Original Package
Product Type: Miniature Circuit Breakers
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Country of Origin: Germany
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
HIMA ETA8345 30A H7201 Hydraulic-Magnetic Circuit Breaker
The HIMA ETA8345 30A H7201, also cataloged as the ETA8345 Hydraulic-Magnetic Circuit Breaker, operates as a dedicated hardware component for temperature-independent overcurrent protection within HIMA safety system power distribution networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ETA8345 30A H7201 |
| Brand | HIMA |
| Origin | Germany |
| Component Type | Hydraulic-Magnetic Circuit Breaker |
| Rated Current | 30 A |
| Voltage Rating | Up to 240 VDC / 277-480 VAC |
| Trip Mechanism | Hydraulic-magnetic, trip-free toggle |
| Mounting Style | Panel Mount |
| Pole Configuration | Single or Double Pole |
| Weight | 0.3 kg |
| Dimensions | 12 cm x 18 cm x 14.4 cm |
| Operating Temp | -40 deg C to +85 deg C |
| Power Consumption | Passive Component (Internal coil sensing resistance) |
| Certifications | CE, FCC |
Functional Safety & Galvanic Isolation Attributes
The unit provides rapid overcurrent disconnect capabilities to support fail-safe state execution in high-availability SIL3 control power networks. The hydraulic-magnetic sensing mechanism avoids thermal ambient ambient derating, maintaining strict tripping precision across wide operating ranges. Physical contact separation guarantees total galvanic isolation during fault conditions, protecting upstream logic subracks and downstream field devices against short-circuit damage and power distribution faults.
Frequently Asked Questions
Q: How does the hydraulic-magnetic trip mechanism differ from thermal-magnetic circuit breakers?
A: Hydraulic-magnetic sensing relies on magnetic flux generated by current flow rather than bimetallic heating, preventing ambient temperature fluctuations from altering the 30 A trip threshold.
Q: What safety protection does the trip-free toggle mechanism provide during an active fault?
A: The internal latch mechanism overrides manual operator force, causing contacts to open immediately during overcurrent conditions even if the external toggle switch is held in the ON position.
Field Installation Guidelines
Follow these technical procedures during panel installation and electrical integration:
- Verify that incoming supply voltages do not exceed the max rated limits of 240 VDC or 480 VAC prior to wiring.
- Mount the breaker chassis directly onto the panel layout cutout using designated mounting hardware to ensure physical stability against vibration.
- Connect power conductors using correctly sized ring terminals or ferrules rated for 30 A continuous duty.
- Torque terminal screws to manufacturer specifications to prevent high-resistance contact points and excessive localized heat accumulation.
- Maintain clear mechanical clearance around the front toggle switch to allow unhindered trip action during fault conditions.