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GEMS SENSORS Inline Thermal-Dispersion Flow Switch - Inline Thermal-Dispersion Flow Switches
GEMS SENSORSInline Thermal-Dispersion Flow Switches

GEMS SENSORS Inline Thermal-Dispersion Flow Switch

The GEMS SENSORS Flow Switch is an inline thermal-dispersion flow switch with a fixed set point and SPST normally open switch position. It has a contact rating of 45 mA at 30V AC and 65 mA at 42V DC (MPN 230500-3-40).

SKU 3G-OTH-88128

Also listed as: 230500340 · 230500 3 40

Brand
GEMS SENSORS
Item
Inline Thermal-Dispersion Flow Switch
Part Number
230500-3-40
Category
Inline Thermal-Dispersion Flow Switches
Available to Order
Also known as:230500-3-40GEMS SENSORS
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Technical Specifications

GEMS SENSORS
Manufacturer Part Number
230500-3-40
Type
SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V
Switch Type
SPST
Set Point Type
Fixed
Switch Position
Normally Open
Contact Rating (AC)
45 mA @ 30V
Contact Rating (DC)
65 mA @ 42V

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GEMS SENSORS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GEMS SENSORS Flow Switch is an inline thermal-dispersion flow switch with a fixed set point and SPST normally open switch position. It has a contact rating of 45 mA at 30V AC and 65 mA at 42V DC (MPN 230500-3-40).

Frequently Asked Questions

What is a GEMS SENSORS thermal-dispersion flow switch used for?

This GEMS SENSORS flow switch detects liquid or gas flow in pipelines using thermal-dispersion technology. It is commonly used in industrial process control, HVAC, and water treatment systems to monitor flow presence and trigger alarms or shutdowns when flow stops.

What are the specifications of the GEMS SENSORS 230500-3-40 flow switch?

The GEMS SENSORS 230500-3-40 is an inline thermal-dispersion flow switch with a fixed set point. It features an SPST normally open switch, rated 45 mA at 30V AC and 65 mA at 42V DC. The switch position is normally open, and the set point is factory-fixed.

Where to buy GEMS SENSORS flow switches worldwide?

3G Electric supplies GEMS SENSORS flow switches worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the 230500-3-40 or other GEMS SENSORS models.

How to install a GEMS SENSORS thermal-dispersion flow switch?

Install the GEMS SENSORS flow switch in a straight pipe section with full liquid contact. Ensure proper electrical connections per the SPST normally open wiring diagram. Avoid overtightening the fitting. Always follow the manufacturer's installation manual for orientation and flow direction.

Used in

Common applications for GEMS SENSORS
Cooling water systems — Gems Sensors flow sights with remote output (e.g., 1AMB2) monitor flow to critical equipment and signal alarms.
Lubrication lines — Gems Sensors flow indicators (e.g., 1AMD3) provide visual confirmation of oil flow to bearings and gears.
Process water monitoring — Gems Sensors flow sights (e.g., 1AMB9) verify flow in water treatment and chemical dosing systems.
HVAC systems — Gems Sensors flow switches (e.g., 1AMB5) detect flow in chilled water and condenser loops for pump control.
Food and beverage — Gems Sensors flow sights with stainless steel bodies (e.g., 1AMD4) are used in clean-in-place (CIP) systems for flow verification.
Power generation — Gems Sensors flow sights (e.g., 1AMB6) monitor cooling water and lube oil flow in turbines and generators.
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GEMS SENSORS Products

3G Electric supplies GEMS SENSORS inline thermal-dispersion flow switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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