Siemens NFF3M1000 Molded Case Circuit Breaker
- 1000A
- 3 Pole
- Unit Mount
Quantity
Siemens NFF3M1000 - 1000A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Engineered for heavy-duty marine and industrial applications, the Siemens NFF3M1000 provides robust overcurrent protection with a 1000A rating. This three-pole MCCB operates at 415VAC and utilizes reliable thermal-magnetic trip technology. Designed as a unit mount solution, it installs into Siemens Sentron panelboards and switchboards. For facility upgrades, this legacy NFF series component is replaced by the HND63B100.Specifications
| Brand | Siemens |
|---|---|
| Part Number | NFF3M1000 |
| Series | NFF |
| Amperage | 1000A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 415VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 415VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Sentron Panelboards, Switchboards |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Rotary Handle, Motor Operator, Terminal Shields |
|---|---|
| Accessories | Lugs Not Included |
| Standards | IEC 60947-2 |
| Approval | IEC |
| Temp Rating | 50C |
| Construction Features | 50C Ambient Calibration |
Product FAQs
7 answersWhat panelboards and switchboards are compatible with the Siemens NFF3M1000?
The NFF3M1000 is designed specifically for unit mounting in Siemens Sentron series panelboards and switchboards.
How is the trip unit configured on the NFF3M1000?
It utilizes a thermal-magnetic trip unit with fixed thermal and adjustable magnetic settings, providing Long-Time and Instantaneous (LI) overcurrent protection.
Is there a modern replacement for the legacy NFF3M1000 circuit breaker?
Yes. For facility upgrades or when replacing this legacy NFF series component, the Siemens HND63B100 is the recommended modern equivalent.
How is the Siemens NFF3M1000 mounted within an enclosure?
This breaker features a unit mount configuration. It bolts directly to the mounting pan or structural backplate of the panelboard or switchboard, rather than plugging into a busbar.
What frame size does the NFF3M1000 utilize?
This 1000A breaker is built on the Siemens Sentron ND Frame architecture, which dictates its physical dimensions and internal accessory compatibility.
What applications is the NFF3M1000 circuit breaker designed for?
Engineered for heavy-duty marine and industrial environments, it provides robust overcurrent protection for high-capacity electrical distribution systems operating at up to 415VAC.
Does the NFF3M1000 come with terminal lugs included?
No, terminal lugs are typically not included with this breaker. You will need to source the appropriate ND frame compatible lugs based on your specific wire size and conductor material.
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