Question 1

How to choose the correct component model？

Accepted Answer

We provide the brands and related parameters of components for you to choose from on the Contactors (Electromechanical) category page. You can select the model you want based on the above.

Question 2

What are the main brands Contactors (Electromechanical)?

Accepted Answer

Typical parameters include Altech Corporation, Altran Magnetics, Altran Magnetics, LLC, American Electrical Inc., American Zettler, B&J-USA, Banner Engineering, Benedict GmbH...

Question 3

How to choose between different Contactors (Electromechanical) brands?

Accepted Answer

1. Pre-Screen with Industry Certifications (ISO, UL, CE)
Verify compliance with safety certifications like Industry Standards to filter 68% of subpar vendors.
2. Analyze Authentic Customer Reviews
Check platforms like Trustpilot/B2B forums for verified purchase reviews focusing on durability (avg. 4.2★+ recommended).
3. Calculate Long-Term Cost Efficiency
Use formula: Total Cost = (Price × Quantity) + (Failure Rate × Repair Cost) to compare 3-year ROI.
4. Request Sample Testing Reports
Require brands to provide third-party lab reports (e.g., SGS/BV) covering [Such as Brand:Altech Corporation, Altran Magnetics, Altran Magnetics, LLC]. 5. Finalize with On-Site Audit (Optional)
For bulk orders, inspect production facilities using QC checklist templates (Download Free PDF).

Part Number	Manufacturer	Description	Quantity	Unit Price	Operations
3RH21401AU00 Datasheet	Siemens	CONT RELAY,4NO, AC 240V,50/60 HZ	Availability:921	1+ $274.9000 5+ $254.3800 10+ $243.4800 15+ $233.4800 25+ $229.9800	min:1
3RH21221AH00 Datasheet	Siemens	CONTACTOR RELAY, 2NO+2NC AC 48V,	Availability:2329	1+ $274.9000 5+ $254.3800 10+ $243.4800 15+ $233.4800 25+ $229.9800	min:1
3RH21402AP00 Datasheet	Siemens	CONTACTOR RELAY 4NO AC 230V SPRI	Availability:2275	1+ $208.8800	min:1
3RH21402AF00 Datasheet	Siemens	CONTACTOR RELAY 4NO AC 110V SPRI	Availability:1755	1+ $274.9000 5+ $254.3800 10+ $243.4800 15+ $233.4800 25+ $229.9800	min:1
3RH21402AH00 Datasheet	Siemens	CONTACTOR RELAY 4NO AC 48V SPRIN	Availability:1966	1+ $274.9000 5+ $254.3800 10+ $243.4800 15+ $233.4800 25+ $229.9800	min:1
3RH21222AK60 Datasheet	Siemens	CONTACTOR RELAY 2NO+2NC AC 120V	Availability:1383	1+ $208.8800	min:1
3RH21221AU00 Datasheet	Siemens	CONTACTOR RELAY 3NO+2NC AC 240V	Availability:522	1+ $274.9000 5+ $254.3800 10+ $243.4800 15+ $233.4800 25+ $229.9800	min:1
3RH21312AN20 Datasheet	Siemens	CONTACTOR RELAY 3NO+1NC AC 220V	Availability:1144	1+ $274.9000 5+ $254.3800 10+ $243.4800 15+ $233.4800 25+ $229.9800	min:1
3RH21401AN20 Datasheet	Siemens	CONTACTOR RELAY 4NO AC 220V SCRE	Availability:2050	1+ $274.9000 5+ $254.3800 10+ $243.4800 15+ $233.4800 25+ $229.9800	min:1
42CF35AJ Datasheet	Siemens	CONTACTOR, 42DP,40A,3P,OPEN,24V	Availability:1532	1+ $103.4010 10+ $92.0736 25+ $87.9127 50+ $84.8882 100+ $81.9661	min:1

Contactors (Electromechanical) Components

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