ABB - Electrification ST201M-B10NA - ST201M-B10NA Miniature Circuit Breaker ST201M-B10NA Miniature Circuit Breaker B-Char., 10kA, 10A, 1P+NA
ABB - Electrification

ST201M-B10NA

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Overview

The ABB ST201M-B10NA is a single-pole plus neutral (1P+NA) miniature circuit breaker (MCB) designed for precise overcurrent protection in low inrush current applications. Part of ABB Electrification’s ST200M series, this device features a B-characteristic tripping curve, which provides rapid response to overloads while minimizing nuisance tripping in circuits with minimal transient currents. Ideal for lighting circuits, control systems, and small appliances, the ST201M-B10NA ensures targeted protection for individual circuits, preventing equipment damage and reducing fire risks. With a rated current of 10A and a breaking capacity of 10kA, the ST201M-B10NA reliably interrupts fault currents, safeguarding both the electrical system and connected devices. The 1+NA pole configuration includes one active pole and an additional neutral pole for enhanced circuit integrity. This model complies with UL 1077 (USA) and CSA 22.2 No. 235 (Canada), making it suitable for industrial, commercial, and residential applications where compliance and performance are critical. Designed for easy installation, the ST201M-B10NA mounts on standard 35 mm DIN rails, ensuring compatibility with control panels, distribution boards, and other electrical enclosures. Its compact design and flexible configuration make it a versatile choice for diverse electrical system requirements. Manufactured in Switzerland, the ST201M-B10NA combines Swiss precision with ABB’s global expertise in electrical protection.
  • 1P+NA pole configuration for enhanced circuit integrity
  • B-characteristic tripping curve for low inrush current applications
  • 10A rated current with 10kA breaking capacity
  • UL 1077 and CSA 22.2 No. 235 compliant
  • DIN rail mounting on 35 mm rails for easy installation
  • Breaking Capacity: 10kA
  • Standards: UL 1077, CSA 22.2 No. 235
  • Country of Origin: CH

Specifications

Amperage Rating
10 A
Current Rating
10 A
Interrupt Rating
(240 V AC) 10 kA / (277 V AC) 10 kA / (60 V DC) 10 kA
Mounting Type
DIN Rail
Number of Poles
1
Poles
1P+NA
Series
ST201M
Series
ST200M
Size
E4.2
Special Features
ST201M-B10NA Miniature Circuit Breaker ST201M-B10NA Miniature Circuit Breaker B-Char., 10kA, 10A, 1P+NA
Trip Type
B
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-B10NA?

The breaking capacity of the ST201M-B10NA is 10kA, ensuring reliable interruption of fault currents.

Is the ST201M-B10NA compatible with UL 1077?

Yes, the ST201M-B10NA is UL 1077 compliant for use in the United States.

What is the pole configuration of the ST201M-B10NA?

The ST201M-B10NA has a 1+NA pole configuration, including one active pole and an additional neutral pole.

What is the rated current of the ST201M-B10NA?

The rated current of the ST201M-B10NA is 10A.

What standards does the ST201M-B10NA meet?

The ST201M-B10NA meets UL 1077 (USA) and CSA 22.2 No. 235 (Canada) safety standards.

What is the mounting type for the ST201M-B10NA?

The ST201M-B10NA is designed for DIN rail mounting on standard 35 mm rails.

What is the tripping characteristic of the ST201M-B10NA?

The ST201M-B10NA features a B-characteristic tripping curve, which provides rapid response to overloads while minimizing nuisance tripping in circuits with low transient currents.

How to Install the ABB ST201M-B10NA MCB

Step-by-step guide to mounting and wiring the ABB ST201M-B10NA miniature circuit breaker on a DIN rail.

Estimated time: 15m

Tools needed:

Flathead screwdriver, Wire strippers, Crimping tool

Supplies needed:

35 mm DIN rail, Mounting screws, Copper wire (appropriate gauge)

  1. Prepare the DIN rail

    Ensure the DIN rail is securely mounted in the electrical enclosure and free of obstructions.

  2. Mount the MCB

    Align the ST201M-B10NA with the DIN rail and snap it into place until it clicks securely.

  3. Connect the wires

    Strip the insulation from the wire ends, insert them into the appropriate terminals (line and load), and tighten the screws to the manufacturer-recommended torque.

  4. Verify installation

    Visually inspect the connections, ensure the MCB is properly seated, and perform a continuity test to confirm proper wiring.

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.