
ABB - Electrification
ST201M-D40NA
Contact for Pricing
Overview
- ABB ST201M-D40NA Miniature Circuit Breaker
- 40A Rated Current
- 1 Pole + Neutral (1P+NA) Configuration
- D-Characteristic Tripping Curve for Inrush Currents
- 5kA Breaking Capacity at 230/400 VAC
- DIN-rail Mounting for Easy Installation
Specifications
Amperage Rating | 40 A |
Amperage Rating, Maximum | 40 A |
Amperage Rating, Minimum | 40 A |
Current Rating | 40 A |
Interrupt Rating | (240 V AC) 10 kA / (277 V AC) 5 kA / (60 V DC) 10 kA |
Mounting Type | DIN Rail |
Number of Poles | 1 |
Poles | 1P+NA |
Series | ST201M |
Special Features | ST201M-D40NA Miniature Circuit Breaker ST201M-D40NA Miniature Circuit Breaker D-Char., 5kA, 40A, 1P+NA |
Trip Type | D |
Tripping Characteristic | D |
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 |
Frequently Asked Questions
What is the breaking capacity of this MCB?
The breaking capacity is 5kA, suitable for 230/400V AC systems.
What is the pole configuration of the ST201M-D40NA?
It is a 1-pole + Neutral (1P+NA) configuration, isolating both live and neutral conductors.
What is the series name for this MCB?
The ST201M-D40NA belongs to ABB’s ST201M series of miniature circuit breakers.
What is the tripping characteristic of the ST201M-D40NA?
The ST201M-D40NA features a D-characteristic tripping curve, designed to handle high inrush currents typical of motor starting and inductive loads.
What is the mounting type for this circuit breaker?
The ST201M-D40NA mounts on a DIN rail, following standard industrial panelboard practices.
Can this MCB protect motors from overload?
Yes, the D-characteristic curve allows temporary high currents during motor start-up without nuisance tripping.
Is the ST201M-D40NA suitable for residential use?
No, it is designed for industrial and commercial applications due to its 5kA breaking capacity and D-curve.
What voltage systems is this MCB compatible with?
The ST201M-D40NA is designed for 230/400V AC systems, as indicated by its 400V rating.
How to Install the ABB ST201M-D40NA Miniature Circuit Breaker
Step-by-step guide to mounting and wiring the ST201M-D40NA on a DIN rail.
Estimated time: 15m
Tools needed:
Flathead screwdriver, Wire strippers, Crimping tool (optional)
Supplies needed:
DIN rail, Copper wire (rated for 40A), Cable lugs (if required)
- Prepare the DIN rail
Ensure the DIN rail is securely mounted in the panel and free of obstructions.
- Mount the MCB
Align the ST201M-D40NA with the DIN rail and snap it into place until it clicks.
- Connect the neutral conductor
Insert the neutral wire into the neutral terminal (NA) and tighten the screw to the specified torque (typically 2.5 Nm).
- Connect the live conductor
Insert the live wire into the 1-pole terminal and tighten the screw to the specified torque (typically 2.5 Nm).
- Verify connections
Gently pull the wires to ensure they are secure. Close the panel door and restore power.
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.


















