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1SDA073700R1
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Product Information
Product Describe
1SDA073700R1
UNDERVOLTAGE RELEASE UNIT
220-240 VAC/DC
50/60 HZ
3.5 VA
POWER BREAKER ACCESSORY
SUITABLE FOR: XT7-XT7M/E1.2/E2.2/E4.2/E6.2
(YU E1.2..E6.2-XT7-XT7M 220-240 VAC/DC)
UNDERVOLTAGE RELEASE UNIT
220-240 VAC/DC
50/60 HZ
3.5 VA
POWER BREAKER ACCESSORY
SUITABLE FOR: XT7-XT7M/E1.2/E2.2/E4.2/E6.2
(YU E1.2..E6.2-XT7-XT7M 220-240 VAC/DC)
Technical specifications for 1SDA073700R1
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Product Model1SDA073700R1
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Product ParametersUNDERVOLTAGE RELEASE UNIT
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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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Estimated Shipping Size3.1x16.4x15.8cm
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ManufacturerABB
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Weight0.2 kg
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Product Main TypeAccessories for Emax 2, Accessories for Tmax XT
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Suitable ForXT7-XT7M, E1.2, E2.2, E4.2, E6.2
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Suitable for Product ClassSACE Tmax XT, SACE Emax 2
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Configuration TypeLoose or configurable
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Current TypeAC/DC
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Rated Voltage (Ur)220...240 V
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Factory New
These are new and current items that are procured from the manufacturer. -
New No Package
These parts are new. They have not been used, but their original packaging is no longer available. -
New In Opened Package
These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged. -
New In Sealed Package
Parts are new. They have not been used and still have their original package seal intact. -
New in Original Package
These parts are new. The packages were not originally sealed by their original manufacturer.
Warranty Period & Disclaimer
Amikon is not an authorized distributor unless otherwise specified, representative, or affiliate of the manufacturer of this product. All trademarks and documents are the property of their respective owners and are provided for identification and informational.
FAQs
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What is the 1SDA073700R1?+The ABB 1SDA073700R1 (also designated as YU E1.2..E6.2-XT7-XT7M 220-240 VAC/DC) is an undervoltage release coil for SACE Emax 2 and Tmax XT7/XT7M circuit breakers.
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What is the primary function of the 1SDA073700R1?+It is a safety and control accessory designed to trip (open) the circuit breaker automatically when its supply voltage falls to 35% to 70% of its rated voltage, or if the control circuit is intentionally opened. This prevents equipment from re-energizing during low-voltage or power-loss conditions.
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What is the difference between this and a Shunt Opening Release (YO)?+A Shunt Opening Release (YO) requires a positive pulse of power to actively trip a circuit breaker. Conversely, this Undervoltage Release (YU) is a fail-safe device. It requires continuous power to remain closed; if control power is completely lost or severed, it immediately opens the breaker.
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What is the rated voltage for the 1SDA073700R1?+This specific model is rated for 220V to 240V for both Alternating Current (AC) and Direct Current (DC) applications
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Product
MORE INFORMATION
Overview
Manuals
Technical notes
Product Applications
Secure and Route Wires
Features:
- 220–240 V AC/DC Universal Control Voltage
- Automatic Tripping on Voltage Drop or Power Failure
- Closing Interlock When De-Energized
- Fast Opening Response (30–50 ms)
- Low Power Consumption with High Inrush Capability
The 1SDA073700R1 ABB UNDERVOLTAGE RELEASE UNIT may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB 1SDA073700R1 UNDERVOLTAGE RELEASE UNIT 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.
Functionally, the undervoltage release is an electromagnetic holding device that installs in the accessory pocket of compatible circuit breakers. When its control coil is continuously energized at the rated voltage of 220–240 V AC or DC, the solenoid maintains a mechanical latch that keeps the circuit breaker in the closed position. If the supply voltage drops below the threshold range of 35 % to 70 % of Un (as defined by IEC 60947-2), the solenoid de-energizes and releases the latch, causing the breaker to open instantaneously. This automatic disconnection protects motors, transformers, and sensitive loads from damage caused by sustained undervoltage operation, while also preventing uncontrolled re-energization when voltage returns.
- Remote Emergency Shutdown Systems:Remote E-stop cuts power during critical hazards
- Building Management & Fire Alarm Integration:Auto-disconnects zones on fire/gas detection
- Industrial Automation & PLC Systems:Selective isolation on PLC/protection relay trips
- Power Distribution & Substation Boards:Load balancing & emergency interlocks for HV boards
- Backup Generator Control Panels:Safe mains-to-generator transfer with grid breaker openings
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.
Fasten the provided retaining screws through the module's integrated mounting tabs to lock it to the frame structure.Route the auxiliary wiring through the pre-cut wiring channels inside the breaker body.Guide the wires out cleanly to the internal secondary terminal blocks (typically block positions U1 and U2).
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When it comes to industrial automation, reliability, speed, and trust matter. At Amikon Limited, we go beyond just supplying parts — we deliver confidence.
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Whether you're maintaining legacy systems or building future-ready projects, Amikon Limited is your dependable partner in precision and performance.
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32D UNITS,GUOMAO BUILDING,NO 388 HUBIN SOUTH ROAD,SIMING DISTRICT,XIAMEN