Product Description

Siemens 3NH3230-0RC DIN Fuse Base – 250A, Size 1, for 3NA HRC Fuse Links

The Siemens 3NH3230-0RC is a SENTRON low-voltage HRC fuse base from the Siemens 3NH series, designed for compatible 3NA DIN HRC fuse links. The exact base is a 1-pole, 250 A, Size 1 (NH1) version with a flat terminal and M10 connection screw. Siemens' official technical data specifies 690 V AC, 440 V DC, and up to 120 kA AC short-circuit breaking capacity for the 3NH3230 fuse base.

For SB Smart, this product is positioned as a Siemens industrial electrical protection accessory for fuse mounting, panel assembly, replacement, maintenance and procurement requirements.

Siemens 3NH3230-0RC DIN Fuse Base

The 3NH3230-0RC belongs to the Siemens 3NH low-voltage HRC fuse-base range used with compatible Siemens 3NA HRC fuse links. Siemens identifies the 3NH3230 as the Size 1, 250 A, 1-pole fuse base with a flat-terminal connection.

The fuse base provides the mechanical mounting and electrical connection for the compatible fuse link. The actual overcurrent protection is provided by the HRC fuse installed in the base.

250 A Rated Current

The exact 3NH3230-0RC is rated at 250 A. Siemens' official datasheet confirms the 250 A rating.

The base rating should be considered together with the selected fuse link, conductor capacity, system voltage and the overall protection-coordination requirements.

Size 1 / NH1 Fuse System

The 3NH3230-0RC is a Size 1 fuse base designed for the NH1 fuse system according to EN 60269-1. Siemens technical documentation identifies the fuse-system size as NH1.

The physical dimensions of the fuse link must match the base. When replacing an existing fuse base, verify both the fuse size and electrical ratings.

Suitable for Siemens 3NA HRC Fuses

The 3NH3230-0RC is part of the Siemens 3NH fuse-base system for compatible 3NA low-voltage HRC fuse links. Siemens' fuse-system documentation identifies the 3NH3230 as the Size 1 base in the 3NA/3NH system.

The exact 3NA fuse article should be checked before installation to ensure that its current rating, voltage, utilization category and physical configuration are compatible.

1-Pole Construction

The 3NH3230-0RC is a 1-pole fuse base. Siemens' official datasheet specifies one pole for this configuration.

This arrangement is suitable where individual fuse mounting is required within a low-voltage HRC protection assembly.

Flat Terminal Connection

The exact 3NH3230 uses a flat-type terminal for the main current circuit. Siemens specifies an M10 connection screw for this configuration.

The terminal arrangement should be considered during panel design to ensure suitable busbar or conductor connections.

690 V AC and 440 V DC Rating

Siemens technical data specifies a supply voltage rating of 690 V AC and 440 V DC for the 3NH3230 fuse base.

The actual system voltage should always be checked against both the fuse base and the selected HRC fuse link.

120 kA AC Breaking Capacity

The Siemens technical data lists a maximum short-circuit current breaking capacity of 120 kA at AC rated value and 25 kA at DC rated value for the 3NH3230.

The complete protection arrangement must still be selected according to the prospective fault current and coordination requirements of the installation.

Fixed Mounting

The 3NH3230 uses a fixed mounting arrangement, and Siemens specifies that busbar mounting is not provided for this configuration.

This is an important consideration when designing or modifying an electrical panel.

Industrial Fuse Protection Applications

The 3NH3230-0RC can be considered for compatible applications such as:

• Industrial distribution panels

• High-current feeder protection

• Power distribution assemblies

• Electrical switchboards

• Industrial equipment protection

• Main distribution circuits

• DIN HRC fuse installations

• Fuse-base replacement applications

Actual application should be based on the complete electrical protection design.

Fuse Base Replacement and Maintenance

The 3NH3230-0RC is useful when an existing Size 1 DIN fuse base needs replacement or when a new electrical panel requires a mounting base for a compatible Siemens 3NA/NH1 HRC fuse.

Before replacement, verify:

• Fuse-link type

• NH fuse size

• Rated current

• System voltage

• Terminal arrangement

• Mounting method

• Electrical clearances

• Compatibility with the selected fuse

Standardized Siemens 3NH Fuse Base Range

Siemens' current fuse-system documentation identifies different LV HRC fuse-base sizes, including:

• 3NH3030 – Size 000/00

• 3NH3120 – Size 0

• 3NH3230 – Size 1

• 3NH3330 – Size 2

• 3NH3420 / 3NH3430 – Size 3

This provides a standardized fuse-base selection path for different Siemens HRC fuse systems and current requirements.

Technical Dimensions

Siemens' configuration manual lists the following dimensions for the 3NH3230 Size 1 fuse base:

• b1: 35 mm

• b2: 49 mm

• b3: 30 mm

• h1/h2: 101 mm

• h3: 25 mm

• h4: 177 mm

• h5: 202 mm

• h6: 203 mm

• Mounting-hole diameter: 10.5 mm

• t1: 35 mm

• t2: 55 mm

• t3: 84 mm

• t4: 107 mm

These dimensions should be checked against the actual panel layout before installation.

Net Weight

Siemens' current datasheet lists the 3NH3230 with a net weight of approximately 767 g.

This information can be useful when considering panel weight and mounting arrangements.

Suitable for Electrical Panel Builders and Industrial Buyers

The Siemens 3NH3230-0RC is relevant for:

• Electrical panel builders

• Industrial buyers

• Maintenance departments

• Electrical contractors

• OEM equipment maintenance

• Electrical product dealers

• Replacement-part procurement

For SB Smart, the product is positioned around industrial electrical product supply and procurement, without claiming automation integration or automation-service work.

Key Features

• Siemens SENTRON 3NH series DIN fuse base

• Article number 3NH3230-0RC

• 250 A rated current

• Size 1

• NH1 fuse system

• 1-pole

• Compatible with Siemens 3NA LV HRC fuse links

• 690 V AC rating

• 440 V DC rating

• Up to 120 kA AC short-circuit breaking capacity

• 25 kA DC short-circuit breaking capacity

• Flat-type terminal

• M10 connection screw

• Fixed mounting

• Approx. 767 g net weight

Benefits

• 250 A capacity: Suitable for compatible high-current industrial protection assemblies.

• Size 1 / NH1 design: Matches the applicable Siemens DIN fuse format.

• 120 kA AC breaking capacity: Suitable for high prospective fault-current applications within specified conditions.

• Flat terminal connection: Supports compatible high-current electrical connections.

• 690 V AC rating: Suitable for compatible low-voltage distribution systems.

• 440 V DC rating: Suitable for compatible DC applications within the specified limits.

• Standardized Siemens design: Simplifies fuse-base selection and replacement.

• Fixed mounting: Suitable for compatible industrial panel installations.

• 1-pole construction: Useful for individual fuse mounting arrangements.

Why Choose Siemens 3NH3230-0RC?

The Siemens 3NH3230-0RC is a 250 A, Size 1, 1-pole DIN-type LV HRC fuse base for the NH1 fuse system, with a flat M10 terminal connection, 690 V AC / 440 V DC rating, and up to 120 kA AC short-circuit breaking capacity under specified conditions.

It is suitable for customers looking to buy or source Siemens DIN fuse bases for industrial electrical distribution, high-current feeder protection, panel assembly, maintenance and replacement requirements.

For SB Smart, this product is best presented as a Siemens industrial electrical protection accessory for supply and procurement across India.

Delivery Across India

SB Smart supplies Siemens industrial electrical products and accessories across Faridabad, Gurgaon/Gurugram, Delhi NCR, Haryana, Noida, Punjab, Mumbai and other major Indian cities.

Major delivery locations include:

• Faridabad

• Delhi

• Gurgaon/Gurugram

• Delhi NCR

• Noida

• Greater Noida

• Haryana

• Punjab

• Mumbai

• Pune

• Ahmedabad

• Bengaluru

• Hyderabad

• Chennai

• Kolkata

• Jaipur

• Chandigarh

• Lucknow

• Indore

• Surat

• Vadodara

• Nagpur

• Coimbatore

• And other major cities across India

Frequently Asked Questions

1. What is Siemens 3NH3230-0RC?

The 3NH3230-0RC is a Siemens SENTRON low-voltage HRC fuse base rated at 250 A, with a Size 1 / NH1, 1-pole configuration.

2. Which fuse system is compatible?

It is designed for the NH1 fuse system and belongs to the Siemens 3NA/3NH LV HRC fuse system.

3. What is the rated current?

The rated current is 250 A.

4. What is the fuse-base size?

The exact base is Size 1.

5. What is the voltage rating?

The base is rated at 690 V AC and 440 V DC under the specified conditions.

6. What type of terminal does it use?

It uses a flat-type terminal with an M10 connection screw.

7. What is the AC breaking capacity?

Siemens specifies up to 120 kA AC under the stated conditions.

8. Is it a fuse or a fuse base?

It is a fuse base. The compatible HRC fuse link provides the actual overcurrent protection.

9. What other Siemens fuse-base sizes are available?

The Siemens 3NH range includes bases for 000/00, 0, 1, 2 and 3 fuse sizes.

10. Where can I buy Siemens 3NH3230-0RC in India?

SB Smart supplies Siemens industrial electrical products, DIN fuse bases and HRC fuse accessories in India for industrial buyers, panel builders, maintenance requirements and replacement procurement.