Eaton SPECIAL952A Complete HKD MCCB - UL 489 Circuit Breaker
Part Number: SPECIAL952A
Quick Summary
Eaton SPECIAL952A is a complete molded case circuit breaker for DC power distribution in industrial control panels. Engineers often struggle with cramped spaces and wiring complexity; this unit provides rear 2A-2B auxiliary and 48-60 Vdc shunt trip with 36 in pigtails to streamline installation and maintenance. Key certifications include UL 489 compliance and UL-listed 100%-rated MCCB performance, offering safety and reliability for critical dc loads. Coupled with the Series C platform and Z01 lug compatibility, it enables fast integration, lower total cost of ownership, and scalable DC protection solutions for modern automation environments.
Product Information
Extended Description
SPECIAL952A Eaton: Eaton Series C complete molded case circuit breaker, K-frame, HKD, Fixed thermal, fixed magnetic trip, Three-pole, 300A, Line and load, Vdc, 2A-2B rear with 36 in right pigtail, 48-60 Vdc rear with 36 in left pigtail, TA300K, TA300K
Product Name
Eaton Series C complete molded case circuit breaker
Catalog Number
SPECIAL952A
UPC
782116894154
Product Length/Depth
4.06 in
Product Height
8.25 in
Product Width
8.25 in
Product Weight
9.5 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL 489
Catalog Notes
Z01 Lugs (TA300K)
Type
Complete breaker
Amperage Rating
300 A
Trip Type
T186
Circuit breaker type
HKD
Circuit breaker frame type
Complete breaker
Auxiliary switch
2A-2B rear with 36 in right pigtail
Shunt trip
48-60 Vdc rear with 36 in left pigtail
Terminals
Line and load
Frame
K
Class
Vdc
Line
TA300K
Prod load
TA300K
Number of poles
Three-pole
UL listed 100%-rated molded case circuit breakers
UL listed 100%-rated molded case circuit breakers
UL listed 100%-rated molded case circuit breakers
Power metering and monitoring with Modbus RTU product aid
Power metering and monitoring with Modbus RTU product aid
Power metering and monitoring with Modbus RTU product aid
Power metering and monitoring with Modbus RTU product aid
Power metering and monitoring with Modbus RTU product aid
Power metering and monitoring with Modbus RTU product aid
Power metering and monitoring with Modbus RTU product aid
Breaker service centers
Circuit Protection, Molded Case Circuit Breakers, Volume 4, Tab 2
Circuit breakers explained
Circuit breakers explained
Series C F-Frame molded case circuit breakers
Series C F-Frame molded case circuit breakers
Series C F-Frame molded case circuit breakers
Series C F-Frame molded case circuit breakers
Series C F-Frame molded case circuit breakers
Feature → Business Impact → Application: 300 A, three-pole HKD frame with complete Series C MCCB design delivers robust DC protection for power distribution in industrial panels, reducing fault impact and improving uptime; ideal for high‑demand machinery and battery charging systems. Feature → Remote control readiness via 2A-2B rear auxiliary with 36 in right pigtail enables integrated signaling to PLCs or safety interlocks, lowering wiring harness complexity and shortening commissioning time; applicable to automated cell lines and packaging equipment. Feature → 48-60 Vdc shunt trip with 36 in left pigtail provides remote trip capability for safety-critical DC circuits, supporting safer de-energization in emergency scenarios across conveyors and robotics. Feature → Line and load terminals with a K-frame, TA300K line/load identification support straightforward installation and maintenance in cramped enclosures; improves serviceability and reduces panel depth requirements. Feature → Z01 lug compatibility and TA300K prod load designation enable flexible field wiring options and easy documentation for audits; suitable for retrofit projects and upgrades in existing DC control panels. Feature → UL 489 certification, warranty terms (one year from installation or 18 months from shipment), and documented Series C data give engineers confidence in compliance, serviceability, and long-term total cost of ownership in industrial automation and electrical protection portfolios.
Get a Quick Quote for a Eaton SPECIAL952A
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton SPECIAL952A?
Enquire Now
FAQs
Follow the manufacturer’s installation instructions for Series C MCCBs. Ensure correct orientation of line and load, mount the K-frame securely, and connect the TA300K line to the appropriate bus. Use the 2A-2B rear auxiliary and 48-60 Vdc shunt trip with the supplied 36 in pigtails to enable remote signaling and trip control, observing UL 489 compliance throughout.
SPECIAL952A is a 300 A, three-pole HKD frame molded case circuit breaker. It features line and load terminals, a TA300K line, and a Vdc class with a trip type of T186. The device includes a 48-60 Vdc shunt trip and 2A-2B rear auxiliary contact with 36 in pigtails, designed for DC protection in industrial panels.
Yes. The SPECIAL952A is designed for DC power distribution with a K-frame, Series C architecture, and a 300 A rating. Its rear pigtails for auxiliary and shunt trip enable remote control and safe de-energization, making it appropriate for industrial automation, energy storage, and DC motor drives in controlled environments.
SPECIAL952A carries UL 489 certification as a molded case circuit breaker. It is documented under the Series C family with UL-listed 100%-rated performance in related materials. Warranty terms follow Eaton policy 25-000 (one year from installation or 18 months from shipment), reflecting standard OEM reliability commitments.
The combination of a 300 A rating, remote trip capability, and predefined wiring options (2A-2B AUX and 48-60 Vdc shunt trip) reduces downtime during fault events and simplifies preventive maintenance. With Z01 lug compatibility and TA300K labeling, retrofit projects are streamlined, lowering these upgrades' total cost of ownership and improving system availability.