Square D NENL34030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Unit Mount
Quantity
Square D NENL34030 - 30A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for commercial applications, the Square D NENL34030 is a 3-pole, 30A molded case circuit breaker. It provides long-time and instantaneous (LI) thermal-magnetic trip functions to protect electrical systems. This unit mount breaker installs into Square D enclosures, control panels, and QED switchboards. It has been replaced by the HDL36030 for modern upgrades. Operating at up to 480Y/277VAC, it delivers an 18 kAIC rating. The device accepts 14-4 AWG wire and carries a HACR rating.Specifications
| Brand | Square D |
|---|---|
| Part Number | NENL34030 |
| Series | NENL |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480Y/277VAC |
| Frame Type | NENL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Enclosures, Control Panels, QED Switchboards |
| Wire Gauge | 14-4 AWG (Cu/Al) |
| Max Wire | 4 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
6 answersWhat enclosures and switchboards accept the NENL34030 breaker?
This unit-mount breaker is compatible with standard Square D enclosures, industrial control panels, and legacy QED switchboards.
Is the NENL34030 interchangeable with Merlin Gerin NSE100N breakers?
Yes, the Square D NENL frame is part of the Schneider Electric family and is frequently cross-referenced directly with the Merlin Gerin NSE100N compact circuit breaker series.
What are the wire gauge requirements for the NENL34030 terminals?
The factory-installed feed-thru lugs accommodate 14 AWG to 4 AWG conductors. Both copper (Cu) and aluminum (Al) wiring are supported.
Are the thermal and magnetic trip functions adjustable on this NENL frame breaker?
No, the NENL34030 features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous (LI) protection parameters cannot be field-adjusted.
What does a feed-thru connection type mean for the NENL34030?
A feed-thru configuration means the breaker has lugs on both the line and load sides, allowing wire connections at both ends rather than plugging onto a busbar on the line side.
Can the NENL34030 be applied on 240V systems with higher fault currents?
Yes, while it carries an 18kAIC rating at 480V, the interrupting capacity increases to 25kAIC when installed on 240V AC systems.
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