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- 1HSB495663-3 1233-4270CNTHB
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We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 1HSB495663-3 1233-4270CNTHB
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Product Model1HSB495663-3 1233-4270CNTHB
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Product ParametersDENSITY SWITCH SF6 gas density monitor
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Tariff Code8537101190
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Country of originSWEDEN
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size28.6x22.1x5.5cm
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ManufacturerABB
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Weight1.78 kg
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Device TypeSF6 Gas Density Monitor
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Dial Size100 mm (4 in) typical
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Measurement Range−0.1 to 0.9 MPa
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Accuracy±1.0% of full scale (Class 1.0)
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Repeatability±0.5% of full scale
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Overpressure Limit1.5 × full scale
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Contact Rating5 A at 250 V AC / 30 V DC
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Operating Temperature−40°C to +60°C (−40°F to +140°F)
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Storage Temperature−50°C to +70°C (−58°F to +158°F)
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Relative Humidity≤ 95% (non-condensing)
Description
The ABB 1HSB495663-3 1233-4270CNTHB is an SF6 gas density switch designed for monitoring the density of sulfur hexafluoride (SF6) gas in high-voltage switchgear and circuit breakers. The device uses a reference chamber with temperature-compensated bellows to provide accurate density indication independent of ambient temperature variations.
The density switch features an analog dial indicator with a 100 mm dial and pointer for local reading. Two or three SPDT microswitches are integrated for alarm and lockout functions at preset density thresholds. The switches are factory calibrated or field adjustable. The contact rating is 5 A at 250 V AC or 30 V DC for resistive loads.
The density switch features an analog dial indicator with a 100 mm dial and pointer for local reading. Two or three SPDT microswitches are integrated for alarm and lockout functions at preset density thresholds. The switches are factory calibrated or field adjustable. The contact rating is 5 A at 250 V AC or 30 V DC for resistive loads.
Alternative Names
1HSB495663-3-1233-4270CNTHB
1HSB495663 3 1233 4270CNTHB
IHSB495663-3 I233-4270CNTHB
1HSB495663-3 1233-427OCNTHB
IHSB495663-3 I233-427OCNTHB
IHSB495663 3 I233 4270CNTHB
1HSB495663 3 1233 427OCNTHB
IHSB495663 3 I233 427OCNTHB
Information
Overview
Manuals
Application Notes
Product Applications
Mechanical Installation & Mounting
Features:
- Continuous SF6 gas density monitoring
- Temperature-compensated measurement system
- Integrated alarm switching contacts
- Lockout contact capability
Integrated switching contacts provide alarm and protection functions when gas density falls below predetermined thresholds. The alarm contact typically initiates maintenance notifications, while additional lockout contacts can be connected to protection systems to prevent equipment operation under insufficient gas conditions.
The 1HSB495663-3 1233-4270CNTHB ABB DENSITY SWITCH SF6 gas density monitor may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB 1HSB495663-3 1233-4270CNTHB DENSITY SWITCH SF6 gas density monitor Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The device incorporates a robust industrial housing suitable for long-term installation in electrical substations and power distribution facilities. Its sealed construction helps maintain measurement stability while protecting internal components from moisture, dust, and environmental contaminants.
The 1HSB495663-3 density monitor is commonly installed on high-voltage circuit breakers and GIS systems where continuous monitoring of SF6 insulation gas is essential for operational reliability, personnel safety, and equipment protection.
- Conventional Power: Safeguards step-up transformers and generator breakers in thermal/gas/nuclear substations
- Renewable Hubs: Protects switchgear in offshore/onshore substations linking wind/solar farms to transmission lines
- T&D Substations: Monitors 110kV–220kV+ breakers in outdoor AIS and indoor GIS for utilities
- Urban Underground: Used in compact GIS substations with gas leak containment for public safety
- Petrochemical/Chemical: Protects substation switchgear where arcs could ignite volatile ambient gases
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Verify Application: Confirm the pressure ratings and dial settings (e.g., typically around 0.8 MPa absolute for this model) match your specific switchgear.
Temperature Stabilization: Allow the density switch to acclimatize at atmospheric pressure and at ±20°C for at least 2 hours before installation to ensure accurate zero-point calibration.
Clean Surfaces: Ensure the adjoining surfaces on both the instrument and the gas compartment are clean, free of burrs, and un-scratched.
Connection & Torque: Thread the device securely into the gas compartment. Avoid over-tightening to prevent stripping the threads.
Technical notes
The 1HSB495663-3 is mounted directly to the SF6 gas compartment via flange or threaded connection. Electrical connection is made through a terminal block or cable gland with M20 × 1.5 or ½″ NPT entry. The device is qualified for seismic conditions per IEEE 344 / IEC 60980 on request.
FAQs
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What is the 1HSB495663-3?
+The ABB 1HSB495663-3 is a high-voltage SF6 gas density switch/monitor used to track the density of insulating gas inside high-voltage circuit breakers -
What is the primary function of the 1HSB495663-3?
+It monitors the density of SF₆ (Sulfur Hexafluoride) insulating gas inside sealed electrical chambers. Because gas pressure changes with temperature, the device provides temperature-compensated density readings (normalized to 20°C). -
Can I replace a 1HSB495663-3 with a -1 or -2 model?
+No. Swapping models with different calibrations can lead to false alarms or prevent the system from locking out when necessary, which is a major safety hazard. -
What is the specific rating of the -3 variant?
+The -3 variant is typically calibrated for a target baseline rating of 0.6 MPa (at a standardized reference temperature of 20°C).
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Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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