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ABB CR-102 CR306 Series Motor Starter, Motor Control Circuit Component
The ABB CR306 Series Motor Starter is an electrical control component engineered by ABB for use in motor starting and motor control circuits. This listing covers the CR306 platform across its available NEMA Starter Sizes — NEMA Size 00, NEMA Size 0, NEMA Size 1, and NEMA Size 2 — giving electricians, panel builders, and maintenance teams a single family reference for sourcing the correct starter size for their motor load. Each unit ships individually packaged, 1 EA per unit, making it straightforward to stock, specify, and deploy as a standalone component or as part of a larger motor control assembly. Electricians, panel builders, and maintenance teams sourcing ABB-branded motor control components can rely on the CR306 Series designation to identify the correct family of starters for their application, then select the NEMA Starter Size that matches the connected motor load.
Key Features
- Series Identification: Part of the ABB CR306 Series, helping installers and panel builders confirm they are specifying the correct motor starter family for replacement or new-build applications.
- NEMA Starter Size Range: Available across NEMA Size 00, NEMA Size 0, NEMA Size 1, and NEMA Size 2 configurations, allowing selection of the correct starter size for the connected motor load.
- Motor Control Function: Designed to serve as a motor starter within motor control circuits, supporting the switching duty required to start and control connected motor loads.
- Individual Packaging: Supplied 1 EA per unit, allowing for flexible ordering whether stocking a single replacement unit or specifying multiple units for a panel build-out.
- ABB Engineering: Manufactured under the ABB brand, a recognized name in industrial and commercial electrical control equipment.
- Compliance Documentation Available on Request: Buy American Act (BAA) and American Recovery and Reinvestment Act (ARRA) compliance status for this item is available by contacting the manufacturer directly, useful for buyers on government or federally funded projects who must verify sourcing compliance before purchase.
- Country of Origin Verification: Country of origin for this unit should be confirmed directly with the manufacturer prior to use on projects with sourcing requirements.
Certifications & Compliance
- Buy American Act (BAA) Compliance: Contact Manufacturer
- American Recovery and Reinvestment Act (ARRA) Compliance: Contact Manufacturer
Technical Specifications
- Series: CR306
- NEMA Starter Size Options: NEMA Size 00, NEMA Size 0, NEMA Size 1, NEMA Size 2
- Packaging: 1 EA per unit
Typical Applications
- Motor Control Centers and Motor Control Panels
- Industrial Machinery Motor Circuits
- Pump, Fan, and Blower Motor Control
- Commercial and Industrial Electrical Installations
- OEM Motor Control Panel Assembly
- Replacement Component for Existing ABB CR306 Series Installations
Why ABB?
ABB is a widely recognized manufacturer of electrical control and motor control equipment used across commercial and industrial applications. The CR306 Series designation, spanning NEMA Starter Sizes 00 through 2, gives electricians, panel builders, and facility maintenance teams a clear way to identify and source the correct ABB starter for their motor control circuits. For projects requiring documented sourcing compliance, ABB makes Buy American Act and American Recovery and Reinvestment Act compliance details available directly upon request, supporting procurement teams that need to verify sourcing before installation.
Manufacturer Resources
Product Specs
- Product Type:
- Motor Starter
- Series:
- CR306
- Department:
- Electrical
- Product Group:
- Wiring Devices
- Configuration:
- NEMA Size 00 - Size 2
- Product Subgroup:
- Motor Starters
ABB CR306A102 – Frequently Asked Questions
1) What NEMA starter sizes does the ABB CR306 Series come in, and which part number is which?
Four NEMA sizes are offered across the CR306 Series: Size 00 is CR306A102, Size 0 is CR306B102, Size 1 is CR306C102, and Size 2 is CR306D102. The size letter sits in the fourth character of the part number, so the family is easy to step up or down once you know the horsepower and full-load current your motor circuit needs.
2) I need to replace a failed ABB CR306 starter in an existing motor control panel. How do I order the right one?
Read the full catalog number off the nameplate of the unit you are pulling out. The CR306 Series replacements are stocked as CR306A102 (Size 00), CR306B102 (Size 0), CR306C102 (Size 1) and CR306D102 (Size 2). Match the NEMA size exactly, because size determines the horsepower and current the contactor is built to switch, and a smaller frame will not carry a larger motor. Coil voltage and enclosure details should be confirmed against the unit you are removing before you commit to a number.
3) What is the closest alternative to an ABB CR306 motor starter if the ABB family is not the one specified?
The Square D Type S non-reversing motor starter is the common cross-brand counterpart. It is a 3-pole NEMA-rated starter using melting alloy overload relays, and like the CR306 it is sized to the NEMA starter size system rather than to an IEC utilization category. The ABB CR306 is offered in NEMA Size 00, Size 0, Size 1, and Size 2, so match the NEMA size of the existing starter when moving between the two families rather than matching horsepower alone.
4) Can a Square D Type S starter drop straight into an existing ABB CR306 enclosure or panel cutout?
No. The Square D Type S and the ABB CR306 are separate starter families with their own mounting patterns, terminal layouts, and overload relay hardware, so a Type S is an electrical equivalent by NEMA size, not a mechanical drop-in. The Type S uses melting alloy overload relays, meaning the thermal unit selection is specific to that family and CR306 overload parts do not carry over. For a like-for-like swap inside existing panel space, stay within the CR306 series and match the NEMA size of the unit being replaced.
5) Can an ABB CR306 starter be used as the motor starter in a panel I am building, or is it only a replacement part?
Either. The CR306 is a motor starter for motor control circuits and ships individually, 1 EA per unit, so panel builders can order the quantity a build needs and maintenance teams can order a single unit for a swap. It is used in motor control centers and control panels, industrial machinery circuits, and pump, fan and blower motor control.
6) I am on a federally funded job. Is the ABB CR306 starter Buy American compliant?
ABB makes Buy American Act and American Recovery and Reinvestment Act compliance status for the CR306 Series available directly on request, and country of origin should be confirmed with the manufacturer as well. If your procurement package requires documented sourcing, get that letter from ABB before the unit goes in the panel.
7) What is an alternative to the ABB CR306 if I need a non-reversing starter with a melting alloy overload?
The Square D Type S NEMA non-reversing motor starter is the cross-brand option, a 3-pole unit with a melting alloy overload block. The ABB CR306 is the ABB-family equivalent and is the one to stay with if the rest of the panel is already ABB CR306 hardware, since the catalog numbering and mounting stay consistent across the four NEMA sizes.
8) Is the ABB CR306 a starter with overload protection, or just a contactor?
The CR306 is catalogued and sold as a motor starter, not a bare contactor, meaning it is intended to handle the switching duty of starting and controlling a connected motor load in a motor control circuit. A starter is a contactor plus an overload element, which is what distinguishes it from a plain contactor when you are specifying for a motor branch circuit.
9) For a simple non-reversing pump or fan motor, is there a reason to pick one NEMA starter family over the other?
Both cover the same duty. The Square D Type S is a 3-pole non-reversing NEMA starter with melting alloy overload protection, and the ABB CR306 is a NEMA-sized motor starter for motor control circuits in pump, fan, and blower applications. The practical deciding factors are which family the rest of the motor control center is built from, since overload heaters and replacement contacts are family-specific, and whether the job carries Buy American Act or ARRA sourcing requirements that must be verified for the specific unit.
10) Does a Square D Type S cover a reversing motor application in place of an ABB CR306?
Not as catalogued. The Square D Type S referenced here is a non-reversing starter, so it provides single-direction starting only and cannot substitute where forward and reverse control is required. A reversing application needs a starter built with two interlocked contactor sets, which is a different configuration in either family. Confirm the control scheme before cross-referencing, because NEMA size alone does not tell you whether a unit is reversing or non-reversing.
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Does the ABB CR306A102 come with a warranty?
Absolutely. The ABB CR306A102 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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