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Eaton / Cutler-Hammer QCR2050 Miniature Circuit Breaker
- 50A
- 2 Pole
- DIN Rail
Eaton / Cutler-Hammer
QCR2050
Miniature Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
QCR2050
Quantity
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Eaton / Cutler-Hammer QCR2050 - 50A 2 Pole Miniature Circuit Breaker
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Description
Built for demanding electrical distribution, the Eaton QCR2050 provides robust 50A thermal-magnetic protection from the proven Quicklag family. It offers reliable long-time and instantaneous trip functions for industrial machinery. The device features a cable-in/cable-out design with fixed box lug terminals, accommodating 14-4 AWG wiring. Its rear-mounting provision allows for straightforward installation onto DIN rails. This HACR-rated breaker meets stringent UL 489 standards.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Series | QCR |
| Amperage | 50A |
| Poles | 2 |
| Mounting Style | DIN Rail |
| Voltage | 120/240VAC, 48VDC, 62.5VDC |
| Phase | 1 |
| AIC Rating | 10kA @ 120/240VAC, 3kA @ 48VDC, 3kA @ 62.5VDC |
| Frame Type | QCR |
|---|---|
| Terminal Type | Box Lugs |
| For Use With | DIN Rail, OEM Control Panels, Telecom Power Systems |
| Wire Gauge | 14-4 AWG |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Padlock Attachment, Shunt Trip, Auxiliary Switch |
|---|---|
| Accessories | Mounting Clips (Optional) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Non-Interchangeable Trip, Common Trip |
Product FAQs
7 answersWhat type of wire connections does the Eaton QCR2050 use?
This breaker features a feed-thru, cable-in/cable-out design with fixed box lug terminals that accommodate 14 to 4 AWG wiring.
How is the QCR2050 circuit breaker mounted?
It is designed for rear mounting on a chassis or DIN rail, making it suitable for OEM control panels and industrial equipment assemblies.
What are the typical applications for the QCR2050 breaker?
This Quicklag series breaker is commonly used for branch circuit protection in OEM control panels, telecom power systems, and other industrial machinery requiring DIN rail mounted electrical assemblies.
Is the Eaton QCR2050 suitable for HVAC equipment?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.
What safety standards does the QCR2050 meet?
This industrial miniature circuit breaker is UL 489 listed and CSA certified for reliable branch circuit protection.
Can the QCR2050 be used in DC power systems?
Yes, in addition to its AC ratings, this breaker is rated for a 3kA interrupting capacity at 48VDC and 62.5VDC, making it suitable for telecom power systems.
What type of trip unit does the QCR2050 utilize?
It uses a fixed thermal magnetic trip unit providing both long-time and instantaneous (LI) protection against overloads and short circuits.
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