ABB 1SCD014521R1 Protection & Circuit Control - UL1008
Part Number: 1SCD014521R1
Quick Summary
The 1SCD014521R1 Protection & Circuit Control device enables robust main power switching for 3‑phase industrial systems. Engineers often struggle with uptime and safety compliance in panel installations, and this unit delivers reliability through UL 1008 and cULus certifications along with a compact, install-friendly design. Key certifications such as UL 1008, cULus, and ETIM 8 EC000066 support streamlined supplier qualification and cross‑system interoperability, while WEEE Category 4 aligns with responsible end‑of‑life practices. With a 150 A rating, 4 poles, and a 220–240 V AC operating window, it integrates smoothly into standard control panels, reducing spare parts variety and simplifying procurement for panel builders and OEMs.
Product Information
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
Instructions and Manuals
ZTGSE and ZTSSE Operation & Maintenance Manual
Wiring Diagram
77A-2007 ZTGDSE 30-1200A Electrical Schematic
Minimum Order Quantity
1 piece
Customs Tariff Number
853710
Country of Origin
United States (US)
Package Level 1 Units
crate 1 piece
Controller Type
CS (Level 4)
Neutral Type
Switched Neutral
Number of Poles
4P
Rated Frequency (f)
Main Circuit 50/60 Hz
Rated Operational Voltage
220 ... 240 V AC
Standards
UL1008
Transition Type
Open Transition
Ampere Rating
150 A
UL Certificate
cULus - CERTIFICATE OF COMPLIANCE - E35022-Vol1-Sec1-20230616
ETIM 8
EC000066 - Power contactor, AC switching
WEEE Category
4. Large Equipment (Any External Dimension More Than 50 cm)
Feature CS (Level 4) controller with four poles enables precise, reliable control of large motors in demanding environments. Business impact: improved fault isolation and safer shutdown sequences, reducing unplanned downtime. Application: motor control centers and machine panels where dependable 3‑phase switching is essential. Feature Switched Neutral configuration minimizes neutral-related fault risk and simplifies wiring. Business impact: safer operations and faster commissioning, particularly in systems with shared neutrals. Application: pumps, fans, and conveyors in HVAC and process lines. Feature 150 A ampere rating supports heavy motor loads with a comfortable margin, reducing the need for auxiliary contactors and enabling compact panel layouts. Application: MCCs and storefront panels in manufacturing. Feature 220–240 V AC, 50/60 Hz compatibility ensures global applicability and straightforward integration with existing electrical infrastructure. Application: North American and international facilities. Feature Open Transition provides controlled opening of circuits to manage arcing and extend contact life. Business impact: longer equipment life and lower maintenance intervals. Application: high‑duty switching in continuous operations. Feature UL 1008 / cULus compliance and ETIM 8 classification underpin purchasing confidence and interoperability across suppliers. Application: regulated environments and standardized data exchange. Feature Documentation and accessibility include wiring diagrams (77A‑2007 ZTGDSE) and maintenance manuals for rapid installation and reduced commissioning time. Business impact: faster project timelines and lower risk of wiring mistakes. Application: field technicians and control engineers performing setup and repair.
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FAQs
The 1SCD014521R1 is designed for 4P protection with 220‑240 V AC input and 50/60 Hz mains. It supports four-pole, switched-neutral switching for 3‑phase motors and related equipment. It integrates with standard MCCs and control panels, matching with common wiring diagrams and the ZTGDSE schematic referenced in ABB's manuals for straightforward installation.
Key specs include a 150 A ampere rating, 4P configuration, 220‑240 V AC operation, 50/60 Hz compatibility, and UL 1008/cULus certification. These specs ensure the device can handle large motor loads, provides reliable switching, and meets essential safety standards required in industrial facilities and OEM panels.
Yes. The 1SCD014521R1 uses an Open Transition (OT) method, which facilitates controlled circuit opening to manage switching transients. This feature helps extend contact life and reduces inrush stress on downstream equipment, making it suitable for demanding MCC and machine panel environments where reliable cycling is critical.
The device carries UL 1008 and cULus certifications, ensuring safety compliance for North American markets. It is categorized under ETIM 8 EC000066 for standardized data exchange and is listed in WEEE Category 4, indicating proper e‑waste handling. These certifications simplify procurement, installation approvals, and ongoing maintenance planning.
With a 150 A rating and four-pole strength, the unit reduces the need for multiple external contactors, cutting hardware costs and panel footprint. Long-term benefits include lower maintenance costs due to rated durability, fewer parts, standardized documentation, and faster replacements sourced from a single supplier, ultimately improving uptime and total cost of ownership in plant environments.