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Siemens Overload Relay: Electronic Protection, 3 Poles, 1NO/1NC, Frame Size A1 - IEC Electronic Overload Relays
SiemensIEC Electronic Overload Relays

Siemens Overload Relay: Electronic Protection, 3 Poles, 1NO/1NC, Frame Size A1

The SIEMENS Overload Relay: Electronic Protection is an IEC electronic overload relay with three poles, frame size A1, and a current range of 5.5 A to 22 A. It features a 1NO/1NC auxiliary contact form, a maximum…

SKU 3G-OTH-44766

Brand
Siemens
Item
Overload Relay: Electronic Protection, 3 Poles, 1NO/1NC, Frame Size A1
Category
IEC Electronic Overload Relays
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Siemens
Manufacturer Part Number
3UB81234DW2
Type
1NO/1NC, Frame Size A1, 5.5 A – 22 A
Poles
3
Frame Size
A1
Compatible Contactors
Frame Size A1
Auxiliary Contact Form
1NO/1NC
Maximum Voltage Rating
690V AC
Thermal Units Required
Not Applicable to Electronic Type Overload Relays
Terminal Connection Type
Screw Terminals
Compatible Contactor Series
Class 14 Starters

Technical Documents

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

Product Description

The SIEMENS Overload Relay: Electronic Protection is an IEC electronic overload relay with three poles, frame size A1, and a current range of 5.5 A to 22 A. It features a 1NO/1NC auxiliary contact form, a maximum voltage rating of 690V AC, and screw terminals. This relay is compatible with Class 14 Starters and frame size A1 contactors, and does not require thermal units.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the SIEMENS 3UB81234DW2 overload relay used for?

The SIEMENS 3UB81234DW2 is an IEC electronic overload relay used to protect motors from overcurrent and phase loss. It is designed for three-phase applications, compatible with Class 14 Starters and frame size A1 contactors, with a current range of 5.5 A to 22 A.

What are the specifications of the SIEMENS 3UB81234DW2 overload relay?

The SIEMENS 3UB81234DW2 is an electronic overload relay with 3 poles, frame size A1, and a current range of 5.5 A to 22 A. It has a 1NO/1NC auxiliary contact form, maximum voltage rating of 690V AC, and screw terminals. No thermal units are required.

Where to buy the SIEMENS 3UB81234DW2 overload relay worldwide?

You can source the SIEMENS 3UB81234DW2 overload relay worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct SIEMENS overload relay for a motor?

To select the correct SIEMENS overload relay, match the relay's current range (e.g., 5.5 A to 22 A for the 3UB81234DW2) to the motor's full-load current. Ensure compatibility with the contactor frame size (A1) and voltage rating (690V AC). Electronic types like this do not require thermal units.

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 iec electronic overload relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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