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- RS Stock No.:
- 395-569
- Mfr. Part No.:
- 3NA3254
- Manufacturer:
- Siemens
Specifications
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Product Type | NH Fuse | |
| Current Rating | 355A | |
| Fuse Type | NH | |
| Fuse Size | NH2 | |
| Voltage | 500V ac | |
| Standards/Approvals | No | |
| Application Category | gG | |
| High Rupture Capacity | Yes | |
| Tag Type | Blade | |
| Minimum Operating Temperature | -5°C | |
| Overall Length | 151mm | |
| Length | 74mm | |
| Maximum Operating Temperature | 60°C | |
| Width | 58mm | |
| Series | 3NA3 | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Product Type NH Fuse | ||
Current Rating 355A | ||
Fuse Type NH | ||
Fuse Size NH2 | ||
Voltage 500V ac | ||
Standards/Approvals No | ||
Application Category gG | ||
High Rupture Capacity Yes | ||
Tag Type Blade | ||
Minimum Operating Temperature -5°C | ||
Overall Length 151mm | ||
Length 74mm | ||
Maximum Operating Temperature 60°C | ||
Width 58mm | ||
Series 3NA3 | ||
RoHS Status: Exempt
- COO (Country of Origin):
- GR
Siemens 3NA3 Series Nh Fuse, 355A Current, 500V Voltage - 3NA3254
This NH fuse provides low-voltage high rupturing capacity protection for industrial electrical installations. It is designed as an NH2-size HRC link with blade contacts and front Visual indication, to interrupt fault currents in AC and DC systems up to its rated voltages. The device is intended for use with non-insulated grip lug mounting and offers clear live-grip handling for maintenance and replacement in switchgear and distribution panels.
Features and Benefits:
• 120kA breaking capacity for AC offers robust fault interruption
• 25kA breaking capacity for DC supports fast fault clearing
• 355A rated current reduces oversized conductor requirements
• 26W power loss at rated current limits thermal stress
• IP20 protection with connected conductors improves safety
• 25kA breaking capacity for DC supports fast fault clearing
• 355A rated current reduces oversized conductor requirements
• 26W power loss at rated current limits thermal stress
• IP20 protection with connected conductors improves safety
Applications
• Suitable for industrial low-voltage distribution boards
• Used with switchgear requiring blade-type HRC protection
• Ideal for systems needing AC and DC voltage coverage
• Can be used for routine fuse replacement in panels
• Suitable for maritime and other specialised installations
• Used with switchgear requiring blade-type HRC protection
• Ideal for systems needing AC and DC voltage coverage
• Can be used for routine fuse replacement in panels
• Suitable for maritime and other specialised installations
What temperature range can it operate within?
It functions between -5°C and +40°C ambient during operation with specified humidity categories.
How is the fuse mounted and handled safely?
It uses non-insulated grip lugs and a live grip design for manual insertion and removal.
What electrical ratings cover AC and DC systems?
The device is rated for 500V AC and 440V DC with corresponding breaking capacities.
How does the Visual indicator communicate fuse condition?
A front-mounted identification indicator provides a visible status cue for faulted links.
Approvals
DIN VDE 0636, DIN VDE 0636-2, CSA 22.2 No. 106
Standards
IEC 60269-1, IEC 60269-2, EN 60269-1