Siemens NEG3B070L Molded Case Circuit Breaker
- 70A
- 3 Pole
- Unit Mount
Quantity
Siemens NEG3B070L - 70A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Providing 70 amps of reliable power distribution, the Siemens NEG3B070L is a 3-pole molded case circuit breaker from the VL Series. It utilizes a thermal-magnetic trip unit for standard long-time and instantaneous (LI) protection. Designed for unit mounting, it integrates into Siemens VL enclosures and switchboards. Factory-installed lugs are included for immediate termination. Rated 85kAIC at 240V, this HACR-rated breaker is superseded by the modern 3VA5170-5ED31-0AA0 frame.Specifications
| Brand | Siemens |
|---|---|
| Part Number | NEG3B070L |
| Series | NEG |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 22kA @ 600Y/347VAC, 30kA @ 250VDC, 30kA @ 500VDC |
| Frame Type | NEG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens VL Series Enclosures, Panelboards, Switchboards |
| Wire Gauge | 8 AWG - 1/0 AWG (Cu), 8 AWG - 2/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Line and Load Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersWhat equipment is the NEG3B070L compatible with?
This breaker is designed for use in Siemens VL Series enclosures, as well as compatible Siemens panelboards and switchboards that accept unit mount NEG frame breakers.
What wire sizes and materials are accepted by the NEG3B070L lugs?
The factory-installed lugs accept 8 AWG to 1/0 AWG copper wire or 8 AWG to 2/0 AWG aluminum wire.
Does the NEG3B070L plug into a busbar?
No, this is a unit mount breaker with a feed-thru connection. It must be bolted directly to a mounting surface or enclosure backpan and wired via the line and load lugs.
Can the trip curve be adjusted on the NEG3B070L?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory set and cannot be adjusted.
Is the NEG3B070L suitable for direct current (DC) systems?
Yes, it is rated for use in DC systems and provides a 30kA interrupting capacity at both 250VDC and 500VDC.
What does the "L" at the end of the NEG3B070L catalog number mean?
The "L" suffix indicates that the breaker is supplied with factory-installed line and load lugs for a cable-in, cable-out connection.
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