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Siemens Surge Protection Device: Three Phase, 240V AC Delta, 1200V (L-G, L-L), 320 V AC - Enclosed External-Mount SPDs
SiemensEnclosed External-Mount SPDs

Siemens Surge Protection Device: Three Phase, 240V AC Delta, 1200V (L-G, L-L), 320 V AC

The SIEMENS Surge Protection Device (SKU 3G-OTH-21118) is a three-phase enclosed external-mount SPD with a steel enclosure. It operates at 240V AC Delta, with a max. continuing operating voltage of 320 V AC and a…

SKU 3G-OTH-21118

Brand
Siemens
Item
Surge Protection Device: Three Phase, 240V AC Delta, 1200V
Category
Enclosed External-Mount SPDs
Series
L-G
Available to Order
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Siemens
Manufacturer Part Number
TPS3D12100X02
Type
1200V (L-G, L-L), Steel
AC
320 V
Voltage
240V AC Delta
AC Delta
240V
Includes
Dry Contacts
Enclosure Material
Steel
Voltage Protection Rating
1200V (L-G, L-L)
Max. Surge Current per Mode
50kA (L-G
Max. Continuing Operating Voltage
320 V AC

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SIEMENS Surge Protection Device (SKU 3G-OTH-21118) is a three-phase enclosed external-mount SPD with a steel enclosure. It operates at 240V AC Delta, with a max. continuing operating voltage of 320 V AC and a voltage protection rating of 1200V (L-G, L-L). The unit includes dry contacts and provides a max. surge current per mode of 50kA (L-G).

Frequently Asked Questions

What is the SIEMENS TPS3D12100X02 surge protection device used for?

The SIEMENS TPS3D12100X02 is a three-phase enclosed external-mount SPD designed to protect industrial electrical systems from transient overvoltages. It is commonly applied in manufacturing plants, commercial buildings, and utility infrastructure where 240V AC Delta power distribution requires reliable surge suppression.

What are the specifications of the SIEMENS TPS3D12100X02?

The SIEMENS TPS3D12100X02 operates at 240V AC Delta with a max. continuing operating voltage of 320 V AC. It provides a voltage protection rating of 1200V (L-G, L-L) and a max. surge current per mode of 50kA (L-G). The unit includes dry contacts and features a steel enclosure.

Where to buy the SIEMENS TPS3D12100X02 worldwide?

You can source the SIEMENS TPS3D12100X02 through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this Siemens SPD.

How to install the SIEMENS TPS3D12100X02 surge protection device?

Install the SIEMENS TPS3D12100X02 by mounting the steel enclosure securely near the main service panel. Connect the three-phase 240V AC Delta lines to the designated terminals, ensuring proper grounding per local codes. Wire the dry contacts for remote monitoring. Always de-energize the system before installation and consult a qualified electrician.

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 enclosed external-mount spds. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
SIEMENS Surge Protection Device: Three Phase, 480V AC Delta, 1800V (L-G, L-L), 552 V AC, 4X (MPN TPS3F0910D00)
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SIEMENS Surge Protection Device: Three Phase, 480V AC Delta, 1800V (L-G, L-L), 552 V AC, 4X (MPN TPS3F0910D00)
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SIEMENS Surge Protector: Single Phase, 120/240V, 700V (L-G, L-N, N-G),1200V (L-L), 120/240V, 4X (MPN FSPD060)
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SIEMENS Surge Protector: Single Phase, 120/240V, 700V (L-G, L-N, N-G),1200V (L-L), 120/240V, 4X (MPN FSPD060)
EATON Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 3 + Ground Wires, L-G/L-N/N-G (MPN AGDN24030R)
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EATON Surge Protection Device: Three Phase, 240V AC Delta, 3 Poles, 3 + Ground Wires, L-G/L-N/N-G (MPN AGDN24030R)

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