ABB - Electrification ST203M-C35NA - ST203M-C35NA Miniature Circuit Breaker ST203M-C35NA Miniature Circuit Breaker C-Char., 10kA, 35A, 3P, 3P+NA
ABB - Electrification

ST203M-C35NA

Contact for Pricing

Overview

The ABB ST203M-C35NA is a robust 3-pole miniature circuit breaker (MCB) engineered for dependable electrical protection across a spectrum of industrial and commercial environments. This specific model, designated ST203M-C35NA, incorporates a neutral auxiliary contact (NA), presenting a comprehensive 3P+NA configuration. Its operational characteristics are defined by a C-characteristic tripping curve. This curve is specifically designed to accommodate circuits that experience moderate inrush currents, a common trait in applications such as lighting systems, electric motors, and transformers. The ST203M-C35NA is rated for a continuous current of 35 Amperes (35A). Furthermore, it possesses a significant breaking capacity of 10 kiloamperes (10kA), ensuring its ability to safely interrupt fault currents and protect downstream equipment. As a component of ABB Electrification's broad and integrated product offering, the ST203M-C35NA is designed for seamless compatibility with standard electrical distribution boards and control panels, facilitating straightforward integration into existing or new installations. The inherent compact design of this MCB is a key feature, contributing to optimized space utilization within electrical enclosures and panels. The integrated neutral auxiliary contact (NA) is a critical functional element, providing essential signaling capabilities. This NA contact enables a range of advanced functionalities, including remote monitoring of the circuit breaker's status, providing clear visual indication of operational states, and facilitating seamless integration into sophisticated alarm systems. These capabilities collectively enhance operational efficiency and contribute to improved safety protocols. The ST203M-C35NA is manufactured in Switzerland (CH), a testament to its high-quality construction and adherence to stringent manufacturing processes. This MCB is compliant with relevant global electrical standards, underscoring its reliability and suitability for dependable circuit protection worldwide. The Stock Keeping Unit (SKU) for this product is ST203M-C35NA. This product is classified under the UNSPSC code 39121603.
  • 3-Pole Miniature Circuit Breaker (MCB)
  • 35A Current Rating
  • 10kA Breaking Capacity
  • C-Characteristic Tripping Curve
  • Includes Neutral Auxiliary Contact (3P+NA)

Specifications

Amperage Rating
35 A
Amperage Rating, Maximum
35 A
Amperage Rating, Minimum
35 A
Breaking Capacity
10 kA
Current Rating
35 A
Interrupt Rating
(240 V AC) 10 kA / (480Y / 277 VAC) 5 kA / (125 V DC) 10 kA
Number of Poles
3
Poles
3P+NA
Series
ST203M
Special Features
ST203M-C35NA Miniature Circuit Breaker ST203M-C35NA Miniature Circuit Breaker C-Char., 10kA, 35A, 3P, 3P+NA
Trip Type
C
Tripping Characteristic
C
Tripping Characteristic
Type C
Voltage Rating
(240 V AC) / (125 V DC)
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
Ground Lug

DNGL

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

83411621001

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

76512124011

ZCT,LZR-030(V),EMPR,EXP
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
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.

Frequently Asked Questions

What is the breaking capacity of this MCB?

The breaking capacity is 10kA, providing substantial protection against fault currents in industrial and commercial applications.

Does the ST203M-C35NA include an auxiliary contact?

Yes, the 3P+NA configuration includes a neutral auxiliary contact for integrated signaling or control functions.

What is the current rating of the ST203M-C35NA?

The current rating is 35A, as specified for this miniature circuit breaker model.

What is the UNSPSC code for this product?

The UNSPSC code for the ST203M-C35NA is 39121603, classifying it as a miniature circuit breaker.

Where is the ST203M-C35NA manufactured?

The ST203M-C35NA is manufactured in Switzerland (CH).

What is the tripping characteristic of the ST203M-C35NA?

The ST203M-C35NA features a C-characteristic tripping curve, designed for circuits with moderate inrush currents such as lighting and motors.

Is the ST203M-C35NA compatible with standard DIN rails?

Yes, the ST203M-C35NA is designed for installation on standard DIN rails in distribution boards.

What applications is this MCB suitable for?

The ST203M-C35NA is suitable for lighting systems, motors, transformers, and other circuits with moderate inrush currents.

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.