Siemens LCE01C301120A Electromechanical Contactor
Siemens LCE Series — Lighting Contactor Overview
The LCE01C301120A is a Siemens LCE-series 4-pole lighting contactor with 30 A contact rating and 115–120 VAC coil. It ships as an active catalog item in box packaging. Chassis-mount form factor suits standard panel DIN or back-plane installation in lighting control panels, building automation panels, and industrial control cabinets where 4-pole switching with auxiliary contacts is required.
LCE01C301120A Key Specifications
| Parameter | Value |
|---|---|
| Contact Rating (Current) | 30 A |
| Contact Form | 4PST – 1NO/3NC |
| Coil Voltage | 115 ~ 120 VAC |
| Coil Power | 248 VA |
| Mounting Type | Chassis Mount |
| Operating Temperature | 25°C ~ 40°C |
| Features | Auxiliary Contacts |
| Encapsulation | Box |
| Product Status | Active |
Engineering Trade-offs Implied by Stated Specs
- The 248 VA inrush coil power requires appropriately sized control-circuit wiring and should drive the selection of any upstream relay or control-transformer capacity in the panel.
- The 25°C–40°C operating temperature window is narrow compared with general-purpose contactors; panel thermal management (ventilation, spacing, ambient derating) governs allowable enclosure placement.
- Coil heating under sustained energization is a known electromechanical characteristic; the 40°C ceiling constrains use in thermally elevated environments such as unventilated enclosures in warm climates.
- The electromechanical construction (versus solid-state) implies contact wear, contact arc management, and mechanical lifecycle considerations that should factor into maintenance scheduling.
- Contact current rating applies to resistive or lighting loads; inductive motor loads typically require derating per manufacturer instructions—omitted here but mandatory for motor-branch applications.
Alternate Coil Voltage Options (Same Series)
Readers must qualify each alternate independently against their application voltage before substitution.
| MPN | Coil Voltage | Contact Form | Similarity |
|---|---|---|---|
| LCE01C301120A (seed) | 115 ~ 120 VAC | 1NO/3NC | — |
| LCE01C301208A | 200 ~ 208 VAC | 1NO/3NC | 1.0 |
| LCE01C301240A | 230 ~ 240 VAC | 1NO/3NC | 1.0 |
| LCE01C301480A | 460 ~ 480 VAC | 1NO/3NC | 1.0 |
| LCE01C301600A | 575 ~ 600 VAC | 1NO/3NC | 1.0 |
| LCE01C301024A | 24 VAC | 1NO/3NC | 1.0 |
| LCE01C301277A | 277 VAC | 1NO/3NC | 1.0 |
| LCE01C301347A | 347 VAC | 1NO/3NC | 1.0 |
| LCE01C302120A | 115 ~ 120 VAC | 2NO/3NC | 1.0 |
- LCE01C301208A, LCE01C301240A, LCE01C301480A, LCE01C301600A share the same 1NO/3NC contact form and 30 A rating at escalating international mains voltages; substitution requires verifying local supply voltage before use.
- LCE01C301024A is the sole 24 VAC coil variant, suitable for low-voltage control systems or SELV circuits where other variants require standard mains control.
- LCE01C301277A and LCE01C301347A are single-voltage (non-range) coils; the lack of a range implies tighter tolerance expectations—verify compatibility with supply variation.
- LCE01C302120A matches the seed coil voltage but adds a second normally open pole (2NO/3NC); use this where additional NO switching capacity is required without changing control voltage.