Sensata / Airpax LELK1-1REC4-29475-1 Molded Case Circuit Breaker
- 20A
- 1 Pole
- Panel Mount
Quantity
Sensata / Airpax LELK1-1REC4-29475-1 - 20A 1 Pole Molded Case Circuit Breaker
New
Quantity
Description
Belonging to the Sensata Airpax LEL family, the LELK1-1REC4-29475-1 delivers 20A of single-pole circuit protection. It provides reliable power switching for industrial, marine, and data center applications. This panel-mount unit integrates into power supplies, telecom equipment, and control panels. It includes a factory-installed auxiliary switch for enhanced system monitoring.Specifications
| Brand | Sensata / Airpax |
|---|---|
| Part Number | LELK1-1REC4-29475-1 |
| Series | LELK |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Panel Mount |
| Voltage | 125VAC, 80VDC |
| Phase | 1 |
| AIC Rating | 5kA @ 125VAC, 5kA @ 80VDC |
| Terminal Type | Stud/Tapped Pad |
|---|---|
| For Use With | Power Supplies, Telecom Equipment, UPS Systems, Industrial Control Panels |
| Trip Technology | Hydraulic Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Lockout Attachment, Terminal Shields |
|---|---|
| Accessories | Auxiliary Switch (Factory Installed), Mounting Hardware |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CCC, CSA, TUV, UL, VDE |
| Temp Rating | -40C to 85C |
| Construction Features | Series Trip, Trip-Free Mechanism, Handle with Barrier, RoHS Compliant, UL Listed, CSA Certified, VDE Approved |
Product FAQs
7 answersWhat types of equipment is the Airpax LELK1-1REC4-29475-1 circuit breaker designed to protect?
This 20A hydraulic-magnetic breaker is commonly used in industrial control panels, telecom equipment, UPS systems, and power supplies where precise, reliable circuit protection is required.
How does the hydraulic-magnetic trip mechanism in the LELK1-1REC4-29475-1 operate in high-temperature environments?
Unlike thermal-magnetic breakers, hydraulic-magnetic breakers trip based on current rather than temperature. This ensures the 20A rating remains stable and will not derate or trip prematurely in hot enclosures.
Does the LELK1-1REC4-29475-1 include an auxiliary switch for system monitoring?
Yes, the REC4 designation in the part number indicates it features a factory-installed auxiliary switch. This allows control systems to remotely monitor whether the breaker is open or closed.
What type of electrical connections does this Airpax 1-pole breaker use?
It features stud or tapped pad terminals. These are designed for secure ring-terminal connections, which provide excellent resistance to vibration in industrial and telecom applications.
Can the LELK1-1REC4-29475-1 be used in both AC and DC circuits?
Yes, this breaker is rated for dual use. It provides up to 5kA of interrupting capacity at either 125VAC or 80VDC, offering flexibility for both AC power supplies and DC telecom systems.
How is the Sensata Airpax LELK1-1REC4-29475-1 mounted?
This unit is designed for panel mounting. It secures directly to the front of an equipment chassis or control panel, providing operators with easy access to the lever actuator.
What does the LI trip function code mean on this breaker?
The LI designation stands for Long-Time and Instantaneous trip functions. It provides a delayed trip for minor, temporary overloads and an immediate trip for severe short circuits to protect sensitive equipment.
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