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Siemens Safety Switch: Fusible, 30 A, Single Phase, 240V AC, Galvanized Steel - Fusible Safety Switches
SiemensFusible Safety Switches

Siemens Safety Switch: Fusible, 30 A, Single Phase, 240V AC, Galvanized Steel

The SIEMENS HF221NR is a 30 A, single-phase fusible safety switch rated for 240V AC, housed in galvanized steel for indoor/outdoor use. 3G Electric interprets this demand and delivers it across 14 industrial…

SKU 3G-OTH-24991

Brand
Siemens
Item
Safety Switch: Fusible, 30 A, Single Phase, 240V AC, Galvanized Steel
Category
Fusible Safety Switches
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Technical Specifications

Siemens
Manufacturer Part Number
HF221NR
Type
30 A, Single Phase, Galvanized Steel, Indoor/Outdoor
AC
240V
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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS HF221NR is a 30 A, single-phase fusible safety switch rated for 240V AC, housed in galvanized steel for indoor/outdoor use. 3G Electric interprets this demand and delivers it across 14 industrial departments, with specialist depth in controls as an authorised distributor alongside brands like Schneider, ABB, and Siemens.

Frequently Asked Questions

What is the SIEMENS HF221NR safety switch used for?

The SIEMENS HF221NR is a fusible safety switch designed for single-phase applications up to 30 A and 240V AC. It provides a manual disconnect means for industrial equipment, motor control centers, and lighting panels, ensuring safe maintenance and compliance with electrical codes in indoor or outdoor environments.

What are the specifications of the SIEMENS HF221NR safety switch?

The SIEMENS HF221NR is a fusible safety switch rated for 30 A, single phase, 240V AC. It features a galvanized steel enclosure suitable for indoor/outdoor use. The manufacturer part number is HF221NR, and it is designed for reliable overcurrent protection and manual disconnection in industrial settings.

Where to buy the SIEMENS HF221NR safety switch worldwide?

You can source the SIEMENS HF221NR safety switch through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide competitive pricing and reliable sourcing for this Siemens fusible safety switch.

How to install the SIEMENS HF221NR safety switch?

Install the SIEMENS HF221NR safety switch by mounting the galvanized steel enclosure securely to a flat surface. Ensure the power is off, then connect line and load conductors per the wiring diagram. Use appropriate fuses rated for 30 A. Always follow local electrical codes and consult a qualified electrician for safe installation.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens Products

3G Electric supplies Siemens fusible safety switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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