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Siemens SENTRON Miniature Circuit Breaker 4-Pole 40A Type D 400V AC 60V DC 10 kA Breaking Capacity 5SY4440-8
Specifications
| Country of Origin | Germany |
|---|---|
| Range | SENTRON |
| Brand | Siemens |
| Height | 90mm |
| Model | 5SY4440-8 |
| Depth | 90mm |
| IP Rating | IP20 |
| Width | 76mm |
| Mount Type | DIN Rail |
| Current Rating | 40A |
| Series | 5SY4 |
| Terminal type | Screw |
| Breaking Capacity | 10kA |
| Number of Poles | 4 |
| Standards/Approvals | IEC/EN 60898-1, IEC/EN 60947-2/UL1077 |
| Rated AC Voltage | 400V ac |
| Rated DC Voltage | 60V dc |
| Tripping Characteristics | Type D |
| Better World Claim | Extended Product Life |
| Reset Actuator Type | Toggle Switch |
| Curve C | Tripping: 5 to 10 times the rated current |
| Curve D | Tripping: 10 to 14 times the rated current |
Key Features
- Automatic cut-out offers reliable protection and safety.
- 4-pole design suitable for multi-phase power systems.
- Type D tripping characteristic ideal for high surge circuits like welders and motors.
- Rated for 40 amperes to accommodate medium-load circuits.
- Mounts on standard DIN rail for easy installation and removal.
- IP20 rated for protection against solid objects and finger access.
- Toggle switch actuator for manual reset and operation.
- Compliance with IEC/EN 60898-1, IEC/EN 60947-2 and UL1077 standards.
Product Description
Siemens 5SY4440-8 Miniature Circuit Breaker is a 4-pole automatic cut-out designed for electrical protection in industrial, commercial, and residential applications. It offers a 40A current rating with Type D tripping characteristic, suited for circuits with high inrush currents such as welders, transformers, and motors.
Rated for AC voltage of 400V and DC voltage up to 60V, this circuit breaker features a breaking capacity of 10 kA ensuring reliable disconnection under fault conditions.
The compact device measures 90 mm in height and depth, and 76 mm in width, making it suitable for DIN rail mounting. It is equipped with a toggle switch actuator for manual reset and features an IP20 rating to provide protection against accidental contact with live parts.
Manufactured according to IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 standards, it guarantees compliance with international safety and performance requirements. The device supports easy and fast installation and removal from assembly, enhancing utility in various electrical distribution systems.
Automatic cut-out offers reliable protection and safety. 4-pole design suitable for multi-phase power systems. Type D tripping characteristic ideal for high surge circuits like welders and motors. Rated for 40 amperes to accommodate medium-load circuits.
Mounts on standard DIN rail for easy installation and removal. IP20 rated for protection against solid objects and finger access. Toggle switch actuator for manual reset and operation. Compact dimensions: Height 90 mm, Width 76 mm, Depth 90 mm.
Compliance with IEC/EN 60898-1, IEC/EN 60947-2 and UL1077 standards. Designed and manufactured in Germany ensuring high product quality.
This miniature circuit breaker is engineered for industrial, functional and residential construction electrical distribution systems, providing protection for generators, cables, and loads against overload and short circuits.
Explore Siemens products and the broader Miniature Circuit Breaker category on EnvMart for reliable circuit protection solutions.
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Frequently Asked Questions
This model has a current rating of 40A, making it suitable for medium-load circuits.
It features a breaking capacity of 10 kA, ensuring reliable disconnection under fault conditions.
It is rated for an AC voltage of 400V and a DC voltage of up to 60V.
This model has a Type D tripping characteristic, which is ideal for high surge circuits like welders and motors.
The dimensions are 90 mm in height, 76 mm in width, and 90 mm in depth, making it compact for installation.
It mounts on a standard DIN rail, allowing for easy installation and removal.
It has an IP20 rating, providing protection against solid objects and finger access.
This model complies with IEC/EN 60898-1, IEC/EN 60947-2, and UL1077 standards.
It features a toggle switch actuator for manual reset and operation.
It is engineered for industrial, commercial, and residential electrical distribution systems, providing protection for generators, cables, and loads against overload and short circuits.
The Siemens 5SY4440-8 is manufactured in Germany.
It is equipped with screw-type terminals for secure connections.
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