ABB - Electrification Signature Partner Distributor
ABB - Electrification ST201M-K8NA - ST201M-K8NA Miniature Circuit Breaker ST201M-K8NA Miniature Circuit Breaker K-Char., 10kA, 8A, 1P+NA
ABB - Electrification

ST201M-K8NA

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Overview

The ABB ST201M-K8NA is a 1-pole + Neutral miniature circuit breaker (MCB) designed for reliable overcurrent protection in single-phase electrical systems. This unit features a rated current of 8 Amperes (I_n = 8A) and a K-characteristic trip curve, making it suitable for circuits with moderate inductive loads that may experience transient inrush currents, such as motors and transformers. The K-characteristic ensures protection against overloads while minimizing nuisance tripping from these surges. With a breaking capacity of 10kA, the ST201M-K8NA is capable of safely interrupting fault currents up to 10,000 Amperes, safeguarding downstream electrical components and wiring. Its 1+NA pole configuration provides protection for both the live conductor and the neutral line, essential for many single-phase applications. Manufactured by ABB Electrification, this MCB adheres to relevant industry standards, including IEC 60898-1 and EN 60898-1, ensuring compliance with global electrical safety requirements. The ST201M-K8NA is designed for standard DIN rail mounting (35mm), facilitating quick and secure installation in distribution boards, control panels, and other electrical enclosures. Its compact design (1 module width) optimizes space utilization in panel configurations. Key applications include motor control circuits, transformer protection, lighting circuits with inductive loads, and other single-phase systems requiring precise overload and short-circuit protection. The K-characteristic trip curve is particularly effective for applications with high inrush currents, such as electric motors, solenoids, and transformers, where standard B or C curves may cause unnecessary tripping. The ST201M-K8NA is part of ABB’s ST200M series, known for its reliability, durability, and compatibility with ABB’s full range of electrical protection and distribution products. SKU: ST201M-K8NA.
  • Manufacturer: ABB - Electrification
  • SKU: ST201M-K8NA
  • Rated Current (I_n): 8A
  • Number of Poles: 1+NA (1 Pole + Neutral)
  • Trip Characteristic: K-Characteristic
  • Breaking Capacity: 10kA

Specifications

Amperage Rating
8 A
Amperage Rating, Maximum
8 A
Amperage Rating, Minimum
8 A
Current Rating
8 A
Interrupt Rating
(240 V AC) 10 kA / (277 V AC) 10 kA / (60 V DC) 10 kA
Number of Poles
1
Poles
1P+NA
Series
ST201M
Special Features
ST201M-K8NA Miniature Circuit Breaker ST201M-K8NA Miniature Circuit Breaker K-Char., 10kA, 8A, 1P+NA
Trip Type
K
Tripping Characteristic
K
Voltage Rating
(240 V AC) / (277 V AC) / (60 V DC)
Package Dimensions (L x W x H)
2.72 IN x 1.38 IN x 3.46 IN
Package Dimensions (L x W x H)
6.9088 cm x 3.5052 cm x 8.7884 cm
Package Weight (Imperial)
3.080 L
Package Weight (Metric)
1.397 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 the ST201M-K8NA?

The breaking capacity is 10kA, meaning it can safely interrupt fault currents up to 10,000 Amperes.

What is the rated current of the ST201M-K8NA?

The rated current is 8 Amperes, providing precise overcurrent protection for compatible circuits.

Is the ST201M-K8NA compatible with DIN rail mounting?

Yes, it is designed for standard DIN rail mounting systems, facilitating easy installation in distribution boards.

What is the trip curve of the ST201M-K8NA?

The ST201M-K8NA features a K-characteristic trip curve, designed for circuits with moderate inrush currents such as motors and transformers.

Does the ST201M-K8NA protect the neutral line?

Yes, the 1P+NA configuration provides protection for both the live conductor and the neutral line in single-phase circuits.

What type of circuits is the ST201M-K8NA suitable for?

It is suitable for motor control circuits, transformer protection, lighting circuits with inductive loads, and general power distribution.

What standards does the ST201M-K8NA comply with?

The device complies with IEC 60898-1 and other relevant industry standards for miniature circuit breakers.

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.