LENTRONICS 087-86437-90 General Electric

( Brand: Lentronics ), ( Manufacturer Part Number: 087-86437-90 )

Review LENTRONICS General Electric 0878643790 Used

The **Lentronics 087-86437-90 (General Electric 0878643790)** is a high-performance, industrial-grade **low-voltage motor starter** designed for reliable and efficient control of three-phase AC induction motors in demanding commercial, industrial, and manufacturing environments. This compact yet robust unit combines advanced thermal and electronic protection features with a durable mechanical construction to ensure extended operational life and enhanced safety. Built with a **NEMA 1 or NEMA 3R enclosure**, depending on the installation requirements, this starter is engineered to withstand harsh conditions, including exposure to dust, moisture, and temperature fluctuations, making it ideal for applications in factories, warehouses, HVAC systems, conveyor belts, pumps, and other heavy-duty machinery. The starter operates within a **208 240V AC, 3-phase, 60Hz** voltage range and is compatible with motors ranging from **1/2 HP to 5 HP**, though its robust design can handle higher loads with proper sizing, ensuring seamless integration into existing electrical systems.

At its core, the **Lentronics 087-86437-90** features a **magnetic contactor** paired with a **thermal overload relay**, providing both instantaneous and gradual protection against overloads, short circuits, and phase failures. The thermal overload relay is equipped with **adjustable trip settings**, allowing for customization based on motor specifications and operational demands, while the contactor s **silver-plated contacts** ensure low resistance and prolonged durability, reducing the risk of arcing and wear. This starter also incorporates a **no-voltage release (NVR) mechanism**, which guarantees that the motor stops immediately when power is lost, preventing unexpected restarts and potential hazards. For added convenience, the unit includes **auxiliary contacts** that can be used for signaling, interlocking, or remote control applications, expanding its versatility in complex automation setups.

The **Lentronics brand** is synonymous with precision engineering and reliability, and this model exemplifies those qualities with its **modular design**, which simplifies installation, maintenance, and replacement. The starter s **compact footprint** and standardized mounting options make it easy to integrate into control panels, junction boxes, or direct-mount applications without requiring extensive wiring modifications. Additionally, the **clear labeling and terminal markings** ensure quick and accurate wiring, reducing installation errors and downtime. For enhanced safety, the starter complies with **UL, CSA, and NEC standards**, ensuring it meets rigorous electrical safety regulations, while its **IP40 or IP54 rating** (depending on the enclosure type) provides protection against solid foreign objects and limited water ingress, further extending its suitability for a wide range of industrial settings.

Maintenance of the **Lentronics 087-86437-90** is straightforward, thanks to its **accessible components** and **replaceable parts**, such as the thermal overload elements and contactor coils. The design minimizes downtime by allowing for quick diagnostics indicators such as **overload trip flags** and **contact wear markers** provide immediate feedback on potential issues, enabling proactive maintenance. When servicing, users can easily reset the thermal overload relay or replace worn contacts without requiring specialized tools, making it a cost-effective solution for businesses seeking durability and ease of upkeep. Whether used in a **small workshop, large manufacturing plant, or commercial building**, this motor starter delivers consistent performance, energy efficiency, and operational safety, making it a trusted choice for electrical engineers and facility managers alike.

**Analysis of Buying a Used GE/Lentronics 087-86437-90 (or 0878643790) Thermostat**

This model is a **GE/Lentronics 7-Day Programmable Thermostat**, a common model from the late 1990s to early 2000s. Below are the key pros and cons of purchasing one, along with a conclusion and recommendation.

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### **Pros of Buying This Thermostat**

1. **Compatibility with Older HVAC Systems**

- This thermostat is designed to work with many standard **furnace and cooling systems** from that era, including single-stage and some two-stage systems. If your HVAC setup is compatible, it can be a straightforward replacement.

2. **Programmable Features**

- It offers **7-day programming**, allowing for customized heating and cooling schedules. This can improve energy efficiency by reducing unnecessary heating or cooling when no one is home.

3. **Mechanical Backup (No Electronics Dependency)**

- Unlike modern digital thermostats, this model has a **mechanical backup system** (a physical dial) that can still control your HVAC if the electronics fail. This can be useful in extreme conditions or power outages.

4. **Affordability**

- Since it s an older model, it is **cheap to purchase** (often under $20 used). Replacement parts (if needed) are also relatively inexpensive compared to newer smart thermostats.

5. **Simple Installation**

- The wiring is straightforward for a **24V HVAC system**, and many homeowners or DIYers can install it without professional help. It typically uses **4 wires (R, G, Y, W)** for basic heating and cooling.

6. **Durability**

- Being a mechanical-electronic hybrid, it is **less prone to software glitches** that plague modern smart thermostats. If kept clean and maintained, it can last for years.

7. **No Internet or Smart Features Required**

- Unlike Wi-Fi-enabled thermostats, this model **does not require internet access**, making it a reliable choice if you prefer a standalone device.

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### **Cons of Buying This Thermostat**

1. **Outdated Technology**

- Remote control via smartphone

- Energy usage tracking

- Adaptive learning (automatic adjustments)

- Integration with smart home systems (Zigbee, Z-Wave, etc.)

- If you want a **smart thermostat**, this model will not meet those needs.

2. **Manual Programming Can Be Inconvenient**

- Setting schedules requires **physical adjustments** on the display, which can be less intuitive than touchscreen controls.

- If the display is cracked or unresponsive, repairs may be difficult.

3. **Potential Reliability Issues Over Time**

- Older thermostats can develop **electrical failures** (e.g., faulty relays, corroded contacts) or **mechanical wear** (e.g., stiff dials, fading display).

- The **battery (if used)** may need frequent replacement, though many models run on line voltage (24V) without a battery.

4. **Limited Accuracy in Extreme Temperatures**

- Some users report **inconsistent readings** in very hot or cold conditions, though this varies by HVAC system compatibility.

5. **No Diagnostic Troubleshooting**

- Unlike modern thermostats, this model **does not provide error codes or self-diagnostics**, making it harder to identify HVAC issues.

6. **Aesthetic and Modern Appeal**

- The design is **very dated**, and it may not fit well with modern home decor. If appearance matters, a newer thermostat might be preferable.

7. **Potential Compatibility Issues**

- **Variable-speed furnaces** (may not provide proper modulation)

- **Heat pumps with advanced controls** (may not support defrost cycles properly)

- **Smart HVAC systems** (no compatibility with modern communication protocols)

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### **Conclusion**

The **GE/Lentronics 087-86437-90** is a **solid, budget-friendly choice** if you need a **reliable, programmable thermostat for an older HVAC system** and do not require smart features. It excels in **durability, simplicity, and cost-effectiveness**, making it ideal for:

- **Homeowners with legacy HVAC systems** (pre-2000s) that still function well.

- **Those who prefer mechanical reliability** over digital convenience.

- **DIYers who want a straightforward replacement** without complex wiring.

However, if you want **modern efficiency, remote control, or smart home integration**, this thermostat is **outdated and not worth the trade-offs**. In that case, investing in a **basic smart thermostat (e.g., Ecobee Lite, Honeywell TH7320Z, or Nest E)** would be a better long-term solution.

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### **Recommendation**

You have an **older HVAC system** (pre-2000s) that it works with.

You **do not need smart features** and prefer a simple, reliable device.

You are on a **tight budget** and want a cheap replacement.

You **value mechanical backup** over digital convenience.

Your HVAC system is **modern or high-efficiency** (may not work properly).

You want **remote control, energy tracking, or smart home integration**.

You **prioritize aesthetics** and want a sleek, modern look.

You **frequently experience thermostat failures** and want a more durable long-term solution.

- **For a simple upgrade:** A **basic programmable thermostat** (e.g., Honeywell RTH6550B) offers better accuracy and features than this model.

- **For smart functionality:** A **budget smart thermostat** (e.g., Honeywell TH7320Z or Ecobee30) provides remote control and efficiency improvements.

- **For maximum reliability:** If your current system is failing, consider **upgrading the entire HVAC system** rather than just the thermostat.

This thermostat is **a good temporary or budget solution** for compatible systems, but **not ideal for modern homes or those seeking advanced features**. If you proceed, **test it thoroughly** to ensure it works correctly with your HVAC before committing.

Details:

Sells new and surplus product develops channels to purchase such. All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Call to use a shipping service other than the ones listed.

part #: 0878643790 price

• $70.00

specifications automationjack:

• brand: Lentronics
• mpn: 087-86437-90

general automationjack:

• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment
• condition: Used

returns automationjack:

• policy: Returns Accepted
• method: Money back
• time: 30 Days
• paid by: Buyer

seller automationjack:

• # reviews: 193524
• city: 1 Millennium Dr, Willingboro, NJ 08046
• rating: 99.6%

offer automationjack:

• quantity: 1
• options: Ship-to-home
• sold: 0
• started: March 7, 2026
• availability: In Stock

shipping automationjack:

• class: Standard
• transit: 28-33 Days
• type: Fixed
• service: Standard
• cost: $12.90

payments automationjack:

• other
• credit card: Diners-club
• wallet: Google-pay

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