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Siemens NH3-630A (3NH3420-2C) Fuse Base

Name: Siemens NH3-630A (3NH3420-2C) Fuse Base
SKU: 3NH34202C

Brand:

Siemens

Series:

3NH

Base Type:

Knife-shaped ceramic base

Fuse Specifications:

Rated Current:

630A

Poles:

Rated Voltage:

1000VAC/440VDC

Model:

NH3-630A seat (3NH3420-2C)

Order Number:

3NH34202C

Description:

Siemens fuse base NH3-630A base (3NH3420-2C), knife-shaped ceramic base, 1P, fuse specification 3, 1000VAC/440VDC, 630A

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Product parameters
Series Overview

Product parameters

Product attributes	Attribute value	Filter product attributes
Brand：	Siemens
Series：	3NH
Base Type：	Knife-shaped ceramic base
Fuse Specifications：	3
Rated Current：	630A
Poles：	1P
Rated Voltage：	1000VAC/440VDC

Products with the same attribute : 0

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Series Overview

Plastic Base of 3NH Series Knife - Type Fuse

The plastic - material knife - type fuse base is suitable for GG/GL - type NH fuses (3NA) with 500VAC and below.
Sizes 00, 1, 2, 3, with rated currents ranging from 160A to 630A.
Single poles of the same size can be assembled into 2 - pole, 3 - pole or more combinations, meeting different needs of customers and being more flexible.

Ceramic Base of 3NH Series Knife - Type Fuse

Suitable for 3NA, 3NE series fuses;
Complies with DIN VDE 0635, IEC269, DIN 43 620 standards;
The insulating cover for contacts is provided as an accessory;

First Letter

a: Local range protection (backup protection fuse).
g: Full - range protection (general - purpose fuse).

NH - Fuse

The low - voltage high - breaking - capacity NH fuse consists of an NH fuse link and an NH fuse base. An NH fuse plugging and unplugging handle can be used to insert or pull out the NH fuse from the NH fuse base.

Working Class

Fuses are classified into working classes according to their functions. At this time, the first letter represents the function class, and the second letter represents the protected object.

Second Letter

G: Cable and wire protection (general application).
S: Cable, wire and semiconductor protection.
R: Semiconductor protection (for rectifier protection).
L: Cable and wire protection (according to DIN VDE regulations).

Local - range fuses can only be used for short - circuit protection (gM, aR).

The following working classes are all included in our product catalog:

gG: Full - range cable and wire protection (general application).
gL: Full - range cable and wire protection.
aR: Local - range semiconductor protection.
gR: Full - range semiconductor protection.
gS: Full - range cable, wire and semiconductor protection.

Rachel

Industrial Control Sales Specialist: Focuses on delivering high-performance, cost-effective industrial control products. Offers end-to-end one-stop procurement support—covering rapid quotation, streamlined order fulfillment, and responsive after-sales service—to simplify clients’ procurement processes. Email: Anthony@icxsg.com

We offer competitive product pricing. For fast support, send your email, phone, address, and the product model & quantity you want—we’ll reach out quickly!

We typically respond via email within one business day! You can also contact us at Anthony@icxsg.com

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Siemens NH3-630A (3NH3420-2C) Fuse Base

Product parameters

Series Overview

Series Overview

Plastic Base of 3NH Series Knife - Type Fuse

Ceramic Base of 3NH Series Knife - Type Fuse

First Letter

NH - Fuse

Working Class

Second Letter

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