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GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V - Inline Thermal-Dispersion Flow Switches
GEMS SENSORSInline Thermal-Dispersion Flow Switches

GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V

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 230500-3-5).

SKU 3G-OTH-88118

Brand
GEMS SENSORS
Item
Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V
Category
Inline Thermal-Dispersion Flow Switches
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Technical Specifications

GEMS SENSORS
Manufacturer Part Number
230500-3-5
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
View Full Spec Sheet

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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 230500-3-5).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

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 confirm flow or no-flow conditions, protecting pumps and equipment from dry-run damage.

What are the specifications of the GEMS SENSORS 230500-3-5 flow switch?

The GEMS SENSORS 230500-3-5 is an inline thermal-dispersion flow switch with a fixed set point. It features an SPST normally open switch, rated at 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 solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the MPN 230500-3-5 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 orientation per the manufacturer's guidelines, and wire the SPST normally open contacts to your control circuit. Avoid overtightening and verify flow direction before commissioning.

Used in

Common applications for GEMS SENSORS
Burner management — GEMS SENSORS FS-4 piston flow switch for monitoring cooling water flow in industrial burners
Pump protection — GEMS SENSORS FS-380 high-pressure flow switch to detect loss of flow in pump systems
Process control — GEMS SENSORS 230500 thermal-dispersion flow switch for low-flow detection in chemical processes
Cooling systems — GEMS SENSORS RFS flow sight with remote output for visual and electrical flow indication in heat exchangers
Water treatment — GEMS SENSORS FT-110 turbine flow sensor for measuring flow rates in filtration systems
Hydraulic systems — GEMS SENSORS FS-500 polypropylene piston flow switch for corrosive fluid monitoring in hydraulic circuits

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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GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-2-60). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
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GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-2-60). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-1-60). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
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GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-1-60). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-4-5). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
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GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-4-5). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-2-5). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
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GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-2-5). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-3-60). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
GEMS SENSORS
GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-3-60). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-2-20). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.
GEMS SENSORS
GEMS SENSORS Flow Switch: Thermal-Dispersion, SPST, Normally Open, Fixed, 45 mA @ 30V, 65 mA @ 42V (MPN 230500-2-20). Key specifications — Set Point Type: Fixed; Switch Position: Normally Open; Switch Type: SPST; Brand: GEMS SENSORS; Contact Rating (DC): 65 mA @ 42V; Contact Rating (AC): 45 mA @ 30V.