Siemens / ITE ITE-LM3800 LM3800 - 800A 3 Pole Molded Case Circuit Breaker
- 800A
- 3 Pole
- Unit Mount
Quantity
Siemens / ITE LM3800 - 800A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Description
Built for heavy-duty commercial applications, this 800A, 3-pole breaker utilizes a reliable thermal magnetic trip mechanism. It provides essential long-time and instantaneous (LI) protection. Designed as a unit mount LMD-frame component, it integrates seamlessly into Siemens P4 and P5 panelboards. It is the ideal drop-in replacement for aging infrastructure, cross-referencing to the LMD63B800. With a 600VAC rating and 25kAIC capacity at 240V, it handles substantial fault currents.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | ITE-LM3800-R |
| Series | LM |
| Amperage | 800A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens P4, P5 Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (3) 1/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 1/0 AWG |
| 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, Undervoltage Release, Alarm Switch, Lug Kits, Padlock Attachment |
|---|---|
| Accessories | Lugs, Shunt Trip, Auxiliary Switch, Undervoltage Release |
| Standards | UL 489, NEMA AB-1 |
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | Interchangeable Trip Unit, HACR Rated |
Product FAQs
5 answersWhat equipment is compatible with the LM3800 circuit breaker?
This unit is designed for use with Siemens P4 and P5 panelboards, as well as compatible Siemens switchboards and motor control centers.
What wire sizes do the standard lugs on the LM3800 accept?
The standard lugs accommodate three conductors per phase, ranging from 1/0 AWG to 500 kcmil for both copper and aluminum wire.
Can the trip settings on the LM3800 be adjusted in the field?
The thermal element for long-time protection is fixed, but the magnetic instantaneous trip is adjustable to allow for coordination with downstream devices and inrush currents.
Is the Siemens LM3800 the same as the ITE LM3800?
Yes, Siemens acquired ITE and continued manufacturing the LM frame under the Sentron family. The Siemens LM3800 is a direct, interchangeable replacement for legacy ITE LM3800 breakers.
What does the LI trip function on the LM3800 indicate?
The LI designation means this thermal magnetic breaker provides both long-time overload protection and instantaneous short-circuit protection.
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