Eaton Cutler-Hammer H2011B-3 Heater

The Eaton Cutler-Hammer H2011B-3 Heater is an industrial-grade thermal overload component engineered for the Eaton Freedom Series and Definite Purpose motor starters. This set of three heater packs provides critical motor overload protection by monitoring the current draw and initiating a trip if thermal limits are exceeded. Designed for precise Full Load Amp (FLA) calibration, the H2011B-3 supports an adjustable range from 9.14 to 14.0 Amps. As a Class 20 standard trip device, it is specifically built to handle motor start-up inrush while ensuring a reliable disconnect within 20 seconds at 600% of its rating to prevent winding damage.

This H2011B-3 heater pack is compatible with NEMA Size 00–0 (Series C) and Size 1–2 (Series B) starters, as well as IEC Sizes A–F (Series C) and G–K (Series B). For contractors managing HVACR motor control systems or industrial pump panels, these elements offer the thermal accuracy required to protect 32A and 75A overload relays. The bimetallic design ensures consistent performance across varying ambient temperatures, making it a staple for maintaining the operational integrity of Eaton motor starters in demanding environments.

Key Benefits

• Adjustable FLA Range: Dial positions A through D allow for fine-tuned current settings between 9.14A and 14.0A.
• Standard Trip Class 20: Offers robust protection for motors with longer starting cycles without nuisance tripping.
• Broad Compatibility: Seamlessly integrates with both NEMA and IEC Freedom Series starters and C306 overload relays.
• Set of Three: Provides a complete phase-protection solution for three-phase motor applications in one package.
• Durable Construction: Built with high-strength, temperature-resistant insulating materials for industrial longevity.

Common Questions

What starters are compatible with the H2011B-3 heater?
These heater packs are designed for Eaton Freedom and Definite Purpose starters. Specifically, they fit NEMA Sizes 00 through 2 (depending on the series) and IEC Sizes A through K.

How do I set the correct amperage on this heater?
The heater features an adjustable dial with four positions (A, B, C, D) corresponding to 9.14A, 10.8A, 12.4A, and 14.0A respectively. Selection should be based on the actual motor nameplate FLA and service factor.

Does this heater work with C306 overload relays?
Yes, the H2011B-3 is the standard thermal element used in C306 motor starters and reversing/non-reversing contactor assemblies.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.