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Overview
- 0.5 kVA single-phase dry-type transformer
- Input: 480V, Output: 120/240V with -2 tap (5.0% buck)
- Frame size 10225, weight 20 lbs
- Dual voltage primary/secondary for flexible configurations
- NEC Article 210-9, Exception 1 compliant as autotransformer
Specifications
Connection Type | Field connected as an autotransformer |
Enclosure | NEMA 3R |
Frequency Rating | 60 HZ |
Height | 11.12 in |
Input Voltage | 600 VAC |
Insulation | IS-12 |
Material | Dry type |
Output Voltage | 120/240 |
Phase | 1 |
Poles | 1PH |
Special Features | ABB's Buck-boost transformers are small, single phase, dry type distribution transformers designed and shipped as insulating/isolating transformers. They have a dual voltage primary and a dual voltage secondary. These transformers can be connected for a wide range of voltage combinations. The most common use is to buck (lower) or boost (raise) the supply voltage a small amount, usually 5 to 27%. Buck boost transformers comply with NEC Article 210-9, Exception 1, when field connected as an autotransformer. |
Standard | Yes |
Temperature Rating | 40 °C |
Wattage | 3 KVA |
Width | 9.38 in |
Package Dimensions (L x W x H) | 6.72 IN x 9.38 IN x 11.12 IN |
Package Dimensions (L x W x H) | 17.0688 cm x 23.8252 cm x 28.2448 cm |
Package Weight (Imperial) | 60.000 L |
Package Weight (Metric) | 27.216 kg |
Frequently Asked Questions
What is the input and output voltage range?
The transformer accepts a 480V input and provides a 120/240V output.
What is the kVA rating of this transformer?
The transformer has a 0.5 kVA rating.
What is the weight of the 9T51B0893?
The transformer weighs 20 lbs.
Does this transformer have taps?
Yes, it features a -2 tap setting for a 5.0% voltage buck.
Is this transformer suitable for 50/60 Hz systems?
Yes, it operates at both 50 and 60 Hz frequencies.
What is the frame size of the 9T51B0893?
The frame size is 10225.
What wiring diagram is provided for installation?
Wiring diagram number 2 is included for installation guidance.
Is this transformer compliant with NEC standards?
Yes, it complies with NEC Article 210-9, Exception 1 when field-connected as an autotransformer.
How to Install the ABB 9T51B0893 Buck-Boost Transformer
Step-by-step guide to install the ABB 9T51B0893 Buck-boost transformer.
Estimated time: 30m
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting hardware, Electrical tape, Copper wire (appropriate gauge)
- Mount the transformer
Secure the transformer to a stable surface using the provided mounting hardware. Ensure the location is free from vibration and meets clearance requirements.
- Connect the input wiring
Connect the 480V input wires to the primary terminals as per wiring diagram No. 2. Verify polarity and tighten connections to manufacturer specifications.
- Connect the output wiring
Connect the 120/240V output wires to the secondary terminals. Ensure proper phasing and secure all connections with electrical tape or appropriate insulation.
- Verify voltage output
Use a multimeter to verify the output voltage matches the required 120/240V. Adjust taps if necessary for precise voltage regulation.
- Test and commission
Perform a final inspection, then energize the transformer. Monitor for unusual noise, heat, or voltage fluctuations during initial operation.
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.
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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.
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