ABB - Electrification ST204M-Z63 - ST204M-Z63 Miniature Circuit Breaker ST204M-Z63 Miniature Circuit Breaker Z-Char., 5kA, 63A, 4P
ABB - Electrification

ST204M-Z63

Contact for Pricing

Overview

The ABB ST204M-Z63 is a 4-pole miniature circuit breaker designed for industrial and commercial electrical protection. Rated at 63A with a 5kA interrupting capacity, this Z-characteristic breaker provides fast tripping to safeguard systems against overloads and short circuits. It supports AC applications up to 480Y/277V and DC applications up to 500V (1-pole: 250V DC; 2-/4-pole: up to 500V DC). The ST204M-Z63 is UL 1077 and IEC 60898-1 certified, ensuring compliance with global safety standards for reliable long-term performance. Its compact 4-pole design integrates seamlessly into ABB’s modular system, making it ideal for distribution boards, control panels, and industrial machinery. The breaker features auxiliary contacts, bell alarm, shunt trip, and bottom-mount auxiliary contact options for enhanced functionality. With a trip curve optimized for sensitive equipment, it delivers precise protection in space-constrained installations while maintaining durability and scalability. The Z-characteristic trip curve ensures rapid response to low-level overloads, protecting sensitive electronics and motors from damage. Compatible with ABB’s Ekip modular system for easy integration and scalability.
  • 4-pole miniature circuit breaker with 63A rating and 5kA interrupting capacity
  • Z-characteristic trip curve for fast response to low-level overloads
  • Supports AC up to 480Y/277V and DC up to 500V (1-pole: 250V DC; 2-/4-pole: 500V DC)
  • UL 1077 and IEC 60898-1 certified for global safety compliance
  • Modular design compatible with ABB’s Ekip system for easy integration
  • Auxiliary contacts, bell alarm, and shunt trip options available
  • Compact design for space-constrained installations

Specifications

Amperage Rating
63 A
Amperage Rating, Maximum
63 A
Amperage Rating, Minimum
63 A
Connection Type
Bottom-mount auxiliary contact
Current Rating
63 A
Interrupt Rating
(240 V AC) 10 kA / (480Y / 277 VAC) 5 kA / (125 V DC) 10 kA
Mounting Type
DIN Rail
Number of Poles
4
Poles
4P
Series
ST204M
Special Features
ST204M-Z63 Miniature Circuit Breaker ST204M-Z63 Miniature Circuit Breaker Z-Char., 5kA, 63A, 4P
Trip Type
Z
Tripping Characteristic
Z
Voltage Rating
(240 V AC) / (125 V DC)
Voltage Rating
480Y/277 VAC
Package Dimensions (L x W x H)
2.72 IN x 2.76 IN x 3.46 IN
Package Dimensions (L x W x H)
6.9088 cm x 7.0104 cm x 8.7884 cm
Package Weight (Imperial)
1.550 L
Package Weight (Metric)
0.703 kg
One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.
JB5-2 2 POLE JUMPER 5.2MM SPACING

1SNK905302R0000

JB5-2 2 POLE JUMPER 5.2MM SPACING
JB5-5 5 POLE JUMPER 5.2MM SPACING

1SNK905305R0000

JB5-5 5 POLE JUMPER 5.2MM SPACING
Ground Lug

DNGL

Ground Lug
ZCT,LZR-030(V),EMPR,EXP

76512124011

ZCT,LZR-030(V),EMPR,EXP
INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

83411621001

INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

Frequently Asked Questions

What is the interrupting rating of the ST204M-Z63?

The ST204M-Z63 has a 5kA interrupting rating at 508V AC.

What trip characteristic does the ST204M-Z63 use?

The ST204M-Z63 uses a Z-characteristic trip curve for fast response to low-level overloads.

What certifications does the ST204M-Z63 have?

The ST204M-Z63 is UL 1077 and IEC 60898-1 certified for safety compliance.

What is the maximum DC voltage rating for the ST204M-Z63?

The ST204M-Z63 supports DC applications up to 500V for 2- and 4-pole configurations.

Is the ST204M-Z63 compatible with ABB’s modular systems?

Yes, the ST204M-Z63 integrates seamlessly into ABB’s Ekip modular system for distribution boards and control panels.

What auxiliary options are available for the ST204M-Z63?

The ST204M-Z63 supports auxiliary contacts, bell alarm, shunt trip, and bottom-mount auxiliary contact options.

What is the maximum AC voltage rating for the ST204M-Z63?

The ST204M-Z63 supports AC applications up to 480Y/277V.

Frequently Asked Questions about ABB - Electrification

What industries and applications are Jokab Safety products used for?

Jokab Safety products are specifically designed for machine safety applications across multiple critical industrial sectors, including Food and Beverage, Packaging, and Material Handling industries. Their safety solutions cover a wide range of machine safeguarding needs, such as safety light guards, safety controllers, safety relays, safety edges, safety mats, and two-hand control devices that protect personnel and equipment in complex industrial automation environments.

What technical support does Jokab Safety offer?

Jokab Safety offers comprehensive technical support through multiple channels, including a dedicated technical support phone line at (888) 385-1221 (Option 1) and email support at [email protected]. For advanced technical assistance, customers can contact their specialized Jokab Tech Support at (519) 982-0976 or email [email protected]. Additionally, they provide product specialist support through Jeff Leslie, who can be reached at (519) 982-0976, offering in-depth application and technical guidance.

What are the main product lines offered by Jokab Safety?

Jokab Safety offers a comprehensive range of machine safety products including safety light guards (Orion), safety controllers (Pluto), safety relays (Sentry), safety edges, safety contact mats, safety locks (Gkey), and safety sensors with OSSD and DYNlink interfaces. Their product lines are specifically designed for industrial applications in food and beverage, packaging, and material handling industries, providing robust safety solutions for machine guarding and personnel protection.

What are the key features of Jokab Safety products?

Jokab Safety products offer comprehensive industrial safety solutions with key features including: highest safety certification levels (up to PL e/Cat 4), extensive fault detection, multiple safety device types (optical safety devices, pressure sensitive devices, sensors, switches, locks, emergency stops), and innovative DYNlink technology that reduces cable requirements and simplifies installation. Their products are certified, verified, and compatible with major industrial automation systems like B&R, featuring easy M12 connector connections and a wide range of adapters to streamline safety implementation.

What certifications and standards do ABB - Electrification products comply with?

ABB - Electrification products comply with a comprehensive range of international certifications and standards, including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products meet critical international standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, and marine classification standards from Bureau Veritas, DNV, and Lloyd's Register of Shipping.

What industries and applications are ABB - Electrification products used for?

ABB - Electrification products are engineered for critical applications across multiple industries, including Energy, Oil & Gas, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their solutions cover essential electrical infrastructure needs such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems designed for high-reliability environments with a strong focus on sustainability, efficiency, and safety.

What technical support does ABB - Electrification offer?

ABB - Electrification offers comprehensive technical support through multiple channels, including a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services encompass 24/7/365 emergency services, on-site support, remote monitoring and diagnostics, installation and commissioning, equipment assessments, repair coordination, and multi-vendor technical assistance. Customers can also access resources like personnel safety training, disaster recovery support, and service agreements tailored to their specific electrification needs.

What are the main product lines offered by ABB - Electrification?

ABB - Electrification offers a comprehensive range of electrical distribution and protection products, including circuit monitoring systems, panelboards, switchgear, motor control centers, circuit breakers, softstarters, and power distribution solutions. Key product lines span low and medium voltage applications across utilities, commercial, industrial, healthcare, and manufacturing sectors, with specialized offerings like the ReliaGear® panelboards, SMISSLINE TP bus systems, and Ekip UP protection and metering relays.

What are the key features of ABB - Electrification products?

ABB - Electrification products feature advanced integrated design elements that enhance industrial performance and reliability. Key features include harmonics and EMC design, integrated DC choke, removable terminals for fast installation, USB ports for troubleshooting, and integrated Safe Torque Off (STO) functionality. The products deliver superior motor control capabilities, support both induction and permanent magnet motors, and offer robust operational features like side-by-side mounting without derating and operation at temperatures up to 45°C. Additionally, ABB's Electrification solutions emphasize digital innovation, with technologies like Novolink enabling predictive maintenance, enhanced analytics, and seamless system integration.

What communication protocols do ABB - Electrification products support?

ABB - Electrification products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with support for various network topologies and high-speed data transmission up to 100 Mbps.