Allen Bradley 140M-C2E-B16 1.6A 3 Pole Motor Protection Circuit Breaker
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Allen Bradley 140M-C2E-B16 - 1.6A 3 Pole Motor Protection Circuit Breaker
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Description
Part of the Bulletin 140M line, the 140M-C2E-B16 provides motor branch circuit protection with a 1.6A rating. It features an adjustable thermal trip range of 1.0-1.6A and a fixed magnetic trip. The 3-pole, C-frame unit mounts onto standard DIN rails and coordinates with Bulletin 100-K and 100-C contactors. Note that this model is replaced by the 140MT-C3E-B16. Rated 65kA at 480Y/277VAC, it includes phase loss protection, current limiting, and a Class 10 trip mechanism.Specifications
| Brand | Allen Bradley |
|---|---|
| Series | 140M |
| Amperage | 1.6A |
| Poles | 3 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 65kA @ 480Y/277VAC, 30kA @ 600Y/347VAC |
| Amperage Range | 1.0-1.6A |
|---|
| Frame Type | C |
|---|---|
| Terminal Type | Screw/Clamp Terminal |
| For Use With | Bulletin 100-K/100-C Contactors, Motor Control Centers |
| Wire Gauge | 16-8 AWG |
| Max Wire | 8 AWG |
| Min Wire | 16 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Adjustable Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Shunt Trip, Undervoltage Release, Busbar System, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 14, IEC 60947-2, IEC 60947-4-1, UL 508 |
| Approval | CCC, CE, CSA, cULus, GOST, UL |
| Temp Rating | -25C to 60C |
| Construction Features | Phase Loss Protection, Current Limiting |
Product FAQs
8 answersWhat is the thermal adjustment range for the 140M-C2E-B16?
The thermal overload protection is adjustable from 1.0A to 1.6A. This allows you to precisely match the breaker to the motor's nameplate Full Load Amps (FLA).
What is the magnetic trip threshold for this motor protector?
The magnetic short-circuit trip is fixed at 21A, which is approximately 13 times the maximum rated current. This factory setting ensures the breaker ignores momentary inrush currents during motor startup but reacts instantly to a short circuit.
What trip class does the 140M-C2E-B16 feature?
This unit utilizes a Class 10 trip characteristic. This is standard for most industrial motor applications, providing sufficient delay for motor starting while ensuring rapid disconnection during overcurrent events.
What is the direct replacement for the discontinued 140M-C2E-B16?
Allen-Bradley has discontinued the 140M-C2E-B16 and replaced it with the 140MT-C3E-B16. However, the original 140M-C2E-B16 is often preferred for direct form-fit-function replacement in legacy panels to avoid re-drilling or modifications.
Can I use modern 140MT accessories with the 140M-C2E-B16?
No, accessories such as auxiliary contacts, shunt trips, and undervoltage releases must be specific to the legacy Bulletin 140M series. Modern 140MT accessories will not mechanically engage with this breaker.
Does the 140M-C2E-B16 provide phase loss protection?
Yes, this motor protection circuit breaker includes built-in phase loss protection. This feature helps prevent catastrophic motor damage caused by single-phasing conditions in three-phase systems.
Does this motor protector require external control power to trip?
No, the thermal and magnetic trip mechanisms operate as internal electromechanical protection functions. They do not require auxiliary control voltage to interrupt a fault.
What size DIN rail is required for mounting the 140M-C2E-B16?
This C-Frame motor protection circuit breaker is designed to snap directly onto a standard 35mm DIN rail, reducing the total footprint required in the control cabinet.
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