ABB 1SCD011918R1 ZTSSE OT Open Transition - UL1008
Part Number: 1SCD011918R1
Quick Summary
ABB 1SCD011918R1 ZTSSE OT is a high-capacity power contactor for reliable open-transition switching in heavy-duty electrical protection. Engineers frequently face arc interruption and downtime when switching 2000 A loads, risking equipment wear and safety concerns. This unit carries UL 1008 certification, cULus compliance, and ETIM EC000066 classification for global regulatory alignment. Designed for industrial protection and heavy-duty AC switching, it helps OEMs reduce downtime and improve reliability, with straightforward installation alongside ABB accessories. With 4P configuration and switched-neutral operation, it integrates smoothly into standard control panels, reducing wiring complexity and enabling faster commissioning. Backed by ABB's global service network, you gain quick access to spare parts, manuals, and expert technical support.
Product Information
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
Instructions and Manuals
ZTGSE and ZTSSE Operation & Maintenance Manual
Wiring Diagram
77A-2009
Minimum Order Quantity
1 piece
Customs Tariff Number
853710
Country of Origin
United States (US)
Package Level 1 Units
crate 1 piece
Controller Type
ZTS (Level 4)
Neutral Type
Switched Neutral
Number of Poles
4P
Rated Frequency (f)
Main Circuit 50/60 Hz
Rated Operational Voltage
440 ... 480 V AC
Standards
UL1008
Transition Type
Open Transition
Ampere Rating
2000 A
UL Certificate
cULus - CERTIFICATE OF COMPLIANCE - E535104-Vol1-Sec1-20230619
ETIM 8
EC000066 - Power contactor, AC switching
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
Feature: Four-pole ZTS (Level 4) with Switched Neutral provides coordinated control of high-current three-phase circuits. Business Impact: This arrangement improves fault isolation, reduces contact wear, and minimizes downtime due to arcing, which translates to lower maintenance costs and longer asset life. Application: Use in main feeders and heavy motor circuits in manufacturing plants and process lines where reliability is non-negotiable. Feature: Open Transition switching enables controlled, safe transfer between contacts under load. Business Impact: It helps limit arc exposure and smooths transitions, supporting safer resets after faults and less interference with downstream equipment. Application: Suitable for motor starters, press lines, and power distribution panels in heavy industry. Feature: Ampere Rating of 2000 A handles substantial current without paralleling devices. Business Impact: Reduces panel footprint and procurement complexity while maintaining headroom for inrush and peak demand. Application: Large conveyors, stamping presses, and CNC machinery needing robust line-side protection. Feature: Rated Operational Voltage 440-480 V AC and 50/60 Hz compatibility. Business Impact: Works with global power systems; ensures consistent performance across regions. Application: International manufacturing facilities and global OEM builds. Feature: UL 1008, cULus certificates and ETIM EC000066 classification. Business Impact: Regulatory compliance reduces procurement risk and simplifies supplier qualification. Application: Procurement in North America and Europe; integration into panels requiring UL listing. Feature: Documentation and installation compatibility with Wiring Diagram 77A-2009 and manuals. Business Impact: Accelerates commissioning, minimizes wiring errors, and supports maintenance teams. Application: New builds and upgrades, with consistent documentation across sites.
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FAQs
The device is a four-pole open-transition contactor with Switched Neutral rated at 2000 A and 440–480 V AC, 50/60 Hz. Plan for a standard high-current panel footprint, allow space for a 4P device, and follow the 77A-2009 wiring diagram with the ZTGSE/ZTSSE manuals for correct terminal labeling and wiring sequence.
Open Transition transfers current between contacts in a controlled sequence to minimize arc exposure. The 2000 A rating provides headroom for inrush and peak demand, while Switched Neutral helps balance fault currents. Proper sequencing and protective device coordination are essential to optimize arc control and protect downstream equipment.
Yes. With four poles, switched neutral, and a 2000 A rating, this device supports large motors and heavy loads in manufacturing lines. It integrates with 440–480 V systems and 50/60 Hz service, offering robust protection, reliable switching, and straightforward integration into existing control architectures.
The product carries UL 1008 certification and cULus compliance, with ETIM EC000066 classification. It also aligns with WEEE considerations and related regulatory requirements. These certifications facilitate cross-border procurement, regulatory compliance, and assurance for commercial deployments in North America and Europe.
The 4P switched-neutral design reduces contact wear and arc-related downtime, improving uptime and extending asset life. Its UL/cUL listings simplify supplier qualification, while documented wiring (77A-2009) speeds commissioning. Overall, you gain lower maintenance costs, fewer spares requirements, and faster project timelines, contributing to a favorable total cost of ownership.