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The 1SDA073687R1 is a heavy-duty shunt closing release that operates on a standard 220-240V AC/DC control supply to execute remote circuit breaker closure.
Instantaneous shunt closing release (YC)
Suitable for both AC and DC control supply
Compatible with SACE Emax 2 and SACE Tmax XT circuit breakers
Weighing exactly 0.12 kg, this factory-certified accessory installs directly into low-voltage switchgear installations to provide an automated linkage between localized command systems and main power distribution breakers. By facilitating instantaneous mechanical trips upon voltage reception, it serves as a critical hardware unit for remote plant operations, synchronized power management, and emergency grid reconnections.As a versatile cross-platform component, this model is built to fit the entire SACE Emax 2 range from E1.2 to E6.2, as well as Tmax XT7M molded case circuit breakers. It is manufactured in adherence to strict international IEC parameters, carrying full CE documentation alongside compliant RoHS and REACH environmental declarations. Integrating this authentic component ensures unified parts management across industrial switchboards while maintaining total hardware compatibility and reducing maintenance downtime during standard component replacements.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
ABB 1SDA073687R1 SHUNT CLOSING RELEASE 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.
Oil and Gas
From an onshore command center via satellite or fiber networks, engineers can remotely activate the XT7M breaker on an offshore platform tens of kilometers away to reboot power for trans-oil pipelines.
Automotive Manufacturing
During a main line maintenance cutover, the PLC coordinates with fast-transfer switches, utilizing this closing accessory to transfer the workshop power bus to a backup supply within milliseconds to prevent production loss.
Rail Transit
Before early morning operations begin, the dispatch center issues a global directive to switch on power and lighting distribution circuits across all stations simultaneously via these distributed closing releases.
Pulp and Paper
During continuous papermaking, if a single power feed failure trips an auxiliary machine, the captive powerplant's interlocking device immediately activates this closing coil to engage a backup breaker, maintaining continuous boiler operation.
Pharmaceutical and Biotechnology
Following an instantaneous voltage-drop trip caused by a lightning strike, the smart distribution system runs a self-check to confirm zero short circuits and triggers this coil to remotely re-engage within one minute, protecting millions of dollars in vaccines or cultures from spoiling.
Prior to installation and maintenance, ensure the circuit breaker is fully de-energized and isolated. The control supply voltage must strictly match the rated 220-240V AC/DC range, as undervoltage will prevent execution while prolonged overvoltage can burn out the coil windings. Additionally, this shunt closing release (YC) is rated for pulse/short-time duty only; continuous voltage application must be strictly avoided by implementing standard electrical or software interlocking within the control scheme to automatically cut off the command signal.
1SDA073687R1 is an electrical accessory manufactured by ABB, specifically a Shunt Closing Release (YC).
How to use products like 1SDA073687R1?
Insert this accessory module into the designated internal slot of a compatible circuit breaker.
What is the essential difference between 1SDA073687R1 and a shunt opening release?
A shunt opening release (such as the YO series) is used to remotely "trip/open" a circuit breaker. In contrast, 1SDA073687R1 (YC series) functions completely opposite, serving to remotely "close/engage" the breaker for power restoration.
Can 1SDA073687R1 be energized continuously for a long period?
No. It operates on an impulse (short-time) duty cycle.
Can the circuit breaker still be closed if 1SDA073687R1 is not installed?
Yes. Even if this electrical accessory is not installed, operators can still perform manual on-site closing via the mechanical close pushbutton (I button) on the front panel of the circuit breaker.
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Disclaimer: We are not an authorized distributor or distributor of the product manufacturer of this website, The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because our company is not an authorized distributor of this product, the Original Manufacturer`s warranty does not apply.While many DCS PLC products will have firmware already installed, Our company makes no representation as to whether a DSC PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. Our company also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from our company, its distributors, or any other source. Our company also makes no representations as to your right to install any such firmware on the product. Our company will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.
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