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

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

The SIEMENS Overload Relay is an IEC electronic overload relay with 3 poles and a 1NO/1NC auxiliary contact form, designed for Frame Size S6. It features a maximum voltage rating of 1000V AC, screw terminals, and is…

SKU 3G-OTH-45090

Brand
Siemens
Item
Overload Relay: Electronic Protection, 3 Poles, 1NO/1NC
Category
IEC Electronic Overload Relays
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Technical Specifications

Siemens
Manufacturer Part Number
3RB21534FC2
Frame Size
S6
Compatible Contactors
Frame Size S6
Auxiliary Contact Form
1NO/1NC
Maximum Voltage Rating
1000V AC
Phase Loss Sensitivity
No
Thermal Units Required
Not Applicable to Electronic Type Overload Relays
Terminal Connection Type
Screw Terminals
Compatible Contactor Series
SIRIUS
View Full Spec Sheet

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

Product Description

The SIEMENS Overload Relay is an IEC electronic overload relay with 3 poles and a 1NO/1NC auxiliary contact form, designed for Frame Size S6. It features a maximum voltage rating of 1000V AC, screw terminals, and is compatible with SIRIUS contactors of the same frame size. This electronic type does not require thermal units and has no phase loss sensitivity.

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 3RB21534FC2 overload relay used for?

The SIEMENS 3RB21534FC2 is an IEC electronic overload relay used to protect motors from overload conditions. It is designed for industrial applications requiring 3-pole protection, with a 1NO/1NC auxiliary contact form, and is compatible with SIRIUS contactors of Frame Size S6.

What are the specifications of the SIEMENS 3RB21534FC2 overload relay?

The SIEMENS 3RB21534FC2 is an electronic overload relay with 3 poles, Frame Size S6, and a maximum voltage rating of 1000V AC. It features screw terminals, a 1NO/1NC auxiliary contact form, and is compatible with SIRIUS contactors. It does not require thermal units and has no phase loss sensitivity.

Where to buy the SIEMENS 3RB21534FC2 overload relay worldwide?

You can source the SIEMENS 3RB21534FC2 overload relay worldwide through 3G Electric, a global industrial equipment distributor. We handle 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 SIRIUS contactor?

To select the correct SIEMENS overload relay, match the frame size of the relay to the SIRIUS contactor. For the 3RB21534FC2, use Frame Size S6 contactors. Ensure the auxiliary contact form (1NO/1NC) and voltage rating (1000V AC) meet your application. Electronic types 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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