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1SBL411025R8411 ga75-10-00-110v50hz/60hz ac operated ABB Contactor
MPN: 1SBL411025R8411
Alt. SKU: GA75-10-11 110V 50Hz / 110-120V 60Hz
Why Choose the GA75-10-11 110V 50Hz / 110-120V 60Hz [1SBL411025R8411]
The GA75 contactors are specifically engineered for DC circuit switching, addressing the greater challenges of arc suppression in DC compared to AC. Selection requires accurate knowledge of the load current, voltage, and the power circuit’s L/R time constant. Featuring a block-type design, the GA75 contactors incorporate main poles equipped with arc chutes containing permanent magnets optimised for DC arc interruption. The three contactor poles are connected in series using two insulated connectors rated at 25 mm², which are supplied and pre-fitted. These single-pole devices require strict adherence to polarity markings at the terminals, identified as 1L1 (positive) and 2T1 (negative). An optional side-mounted auxiliary contact block (1 CAL 5-11) is available for GA75-10-11 models. Control circuits operate on AC via a laminated magnetic coil, ensuring reliable actuation. A comprehensive range of accessories supports flexible installation and application requirements.
Technical Specification
- Function: DC circuit switching with arc chutes and permanent magnets for DC breaking.
- Contact Configuration: 3 main NO contacts, 1 auxiliary NO, 1 auxiliary NC contact.
- Rated Operational Voltage: Main circuit 1000 V DC, auxiliary circuit 690 V AC/DC.
- Rated Operational Current DC-1: Up to 120 A at 110/220 V DC (depending on temperature).
- Insulation Voltage (Ui): 1000 V (IEC 60947-4-1), 690 V (IEC 60947-5-1).
- Impulse Withstand Voltage (Uimp): 8 kV.
- Degree of Protection: IP10 main terminals, IP20 auxiliary and coil terminals (IEC 60529).
- Terminal Type and Capacity: Screw terminals; main circuit 6–25 mm² (flexible/rigid), auxiliary circuit 0.75–4 mm².
- Mechanical Durability: 10 million operating cycles.
- Mounting: DIN rail TH35-15 or TH75-25; alternatively by 2 M6 screws (not supplied).
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"Specified by UK panel builders for dependable control." Controls Engineer, UK
Frequently Asked Questions
What is the function of the GA75 contactor?
The GA75 contactor is designed for DC circuit switching, equipped with arc chutes and permanent magnets for effective DC breaking.
What is the rated operational voltage for the GA75 contactor?
The rated operational voltage for the main circuit is 1000 V DC, and for the auxiliary circuit, it is 690 V AC/DC.
What is the cable capacity for the main and auxiliary circuits?
The main circuit terminals can accommodate cable sizes from 6 to 25 mm², while the auxiliary circuit can handle 0.75 to 4 mm².
How is the GA75 contactor mounted?
The GA75 can be mounted on a DIN rail (TH35-15 or TH75-25) or alternatively by using two M6 screws (not supplied).
What type of auxiliary contacts are available with the GA75 contactor?
The GA75 contactor can be fitted with a side-mounted auxiliary contact block, specifically the 1 CAL 5-11 add-on type.
What is the degree of protection for the GA75 contactor?
The GA75 contactor has an IP10 rating for main terminals and an IP20 rating for auxiliary and coil terminals.
What is the mechanical durability of the GA75 contactor?
The mechanical durability of the GA75 contactor is rated at 10 million operating cycles.
| Manufacturer Part Number | 1SBL411025R8411 |
|---|---|
| Manufacturer | ABB |
| Alternative Product SKU | GA75-10-11 110V 50Hz / 110-120V 60Hz |
| Packed Quantity | 1 |
| Range | GA |
| Inbuilt Aux | 1 N/O 1 N/C |
| Barcode | 3471522100849 |
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