🌊 9037EG9 SQUARE D (Telemecanique) Float Switch – 2-Pole, Close On Rise, Flange Mount
Reliable liquid level control for tanks, sumps, and process applications
The Square D 9037EG9 Float Switch (now under the Telemecanique brand by Schneider Electric) provides precise and durable liquid level monitoring. Built with a rugged steel and brass body, this flange-mount, close-on-rise switch is ideal for controlling pumps and alarms in confined or horizontal tank applications where vertical clearance is limited.
⚠️ Note:
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Float and rod not included — sold separately.
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Product branding may read Telemecanique, but specifications and performance remain identical to the original Square D model.
✅ Key Features
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✅ Close-On-Rise Operation – Contacts close as liquid level rises, ideal for pump-down control.
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✅ Rugged Construction – Steel and brass housing ensures long-term reliability in demanding environments.
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✅ Flange Mount Design – Perfect for tanks or vessels with side-mount access.
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✅ Wide Temperature Range – Operates from -22°F to 220°F, suitable for various fluids.
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✅ UL and CSA Certified – Tested for performance and electrical safety.
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✅ Telemecanique (Schneider Electric) – Backed by trusted global brand quality.
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✅ Compact for Tight Spaces – Designed for systems with limited vertical clearance.
📊 Specifications
| Specification | Detail |
|---|
| Manufacturer |
Schneider Electric / Telemecanique (formerly Square D) |
| Part Number |
9037EG9 |
| Series |
9037E |
| Switch Function |
Close On Rise |
| Contact Form |
DPST (2-Pole) |
| Mounting Type |
Flange Mount |
| Body Material |
Steel & Brass |
| Float Material |
Stainless Steel (sold separately) |
| Electrical Connections |
Screw Clamp |
| Conduit Size |
1/2" |
| Tank Connection Size |
5-1/8" |
| Float Travel |
2-1/16" |
| Max Voltage |
575 VAC |
| Max Current |
600A |
| Horsepower Ratings |
2 HP @ 120V (1-Phase); 3 HP @ 240V (1-Phase); 5 HP @ 240V (3-Phase) |
| Operating Temperature |
-22°F to 220°F |
| NEMA Rating |
1 (Indoor Use) |
| Certifications |
UL Listed, CSA Certified |
| Dimensions (HxW) |
7.6" x 7.6" |
| Overall Length |
3.86" |
| Float Position |
Below |
⚠️ Common Symptoms When Replacement Is Needed
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Pump fails to start or stop at correct liquid level
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Corrosion or pitting on terminals or contacts
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Switch fails continuity test during float movement
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Intermittent operation or delayed response
❓ FAQ
Q: Is this still a genuine Square D product?
A: Yes — Square D’s control line has been rebranded under Telemecanique (Schneider Electric). The 9037EG9 remains the same high-quality product with identical specs.
Q: Does this come with a float and rod?
A: No — the float and rod are sold separately and can be ordered to match the installation length and material requirements.
Q: Can it be used outdoors?
A: This model is NEMA 1 rated, meaning it’s for indoor, dry environments only. Use a NEMA 4X model for outdoor or washdown applications.
Q: What does “Close on Rise” mean?
A: It means the switch contacts close as the liquid level rises, activating connected equipment such as pumps or alarms.
🛒 Shopping Tips
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Verify if you need “Close on Rise” or “Open on Rise” configuration before purchase.
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Ensure your system matches the mount type (flange) and electrical rating.
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Pair with a compatible stainless steel float and rod assembly for a complete setup.
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Use OEM Telemecanique/Square D parts for consistent performance and warranty protection.
