We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

SCHNEIDER Phase Monitor Relay: DIN-Rail Mounted, 8 A Current Rating - DIN-Rail Mounted Relays
SCHNEIDERDIN-Rail Mounted Relays

SCHNEIDER Phase Monitor Relay: DIN-Rail Mounted, 8 A Current Rating

The SCHNEIDER Phase Monitor Relay is a DIN-Rail Mounted relay designed for undervoltage monitoring. It operates with an input voltage range of 160 to 288V AC and has an 8 A current rating. This product, model…

SKU 3G-OTH-38475

Brand
SCHNEIDER
Item
Phase Monitor Relay: DIN-Rail Mounted, 8 A Current Rating
Category
DIN-Rail Mounted Relays
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SCHNEIDER
Manufacturer Part Number
RM22TU21
AC
160 to 288V
Input Voltage
160 to 288V AC
Current Rating
8 A
Monitored Parameters
Undervoltage
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The SCHNEIDER Phase Monitor Relay is a DIN-Rail Mounted relay designed for undervoltage monitoring. It operates with an input voltage range of 160 to 288V AC and has an 8 A current rating. This product, model RM22TU21, provides phase monitoring for industrial applications.

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 the SCHNEIDER RM22TU21 phase monitor relay used for?

The SCHNEIDER RM22TU21 phase monitor relay is used for undervoltage monitoring in industrial electrical systems. It protects equipment by detecting when voltage drops below safe levels, helping prevent damage to motors, pumps, and controls in applications across machining, HVAC, and material handling.

What are the specifications of the SCHNEIDER RM22TU21?

The SCHNEIDER RM22TU21 is a DIN-rail mounted phase monitor relay with an input voltage range of 160 to 288V AC and a current rating of 8 A. It monitors undervoltage conditions. The manufacturer part number is RM22TU21, and it is designed for reliable industrial phase monitoring.

Where to buy the SCHNEIDER RM22TU21 worldwide?

3G Electric supplies the SCHNEIDER RM22TU21 phase monitor relay worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this relay to your facility. Contact us for availability and lead time on this DIN-rail mounted undervoltage monitor.

How to install a SCHNEIDER RM22TU21 phase monitor relay?

Mount the SCHNEIDER RM22TU21 on a DIN rail in your control panel. Connect the input voltage (160 to 288V AC) per the wiring diagram, ensuring proper phase sequence. Set the undervoltage threshold according to your system requirements. Always follow local electrical codes and Schneider's installation manual.

Used in

Common applications for SCHNEIDER
Motor starting in conveyor systems — Schneider Altistart ATS 22 soft starters (e.g., ATS22D17S6U) reduce inrush current.
Speed control for industrial pumps — Schneider Altivar ATV320 VFDs (e.g., ATV320U55N4W) provide variable flow regulation.
Machine safety interlocking — Schneider XPSUAF13AP safety relays monitor emergency stop circuits on assembly lines.
Panel-mounted control stations — Schneider XB5 flush push buttons (ZB5AA5) serve as start/stop operators in MCCs.
Heavy-duty motor switching — Schneider LC1G150LSEA contactors handle 150 A loads in compressor and crusher applications.
Emergency stop actuation — Schneider 9001K mushroom-head push buttons (9001KR25R) provide red, momentary stop functions.

SCHNEIDER Products

3G Electric supplies SCHNEIDER din-rail mounted relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
SCHNEIDER Phase Control Relay: DIN-Rail Mounted, 8 A Current Rating, 183 to 528V AC (MPN RM22TG20). Key specifications — Monitored Parameters: Phase Failure; Manufacturer Part Number: RM22TG20; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Phase Control Relay: DIN-Rail Mounted, 8 A Current Rating, 183 to 528V AC (MPN RM22TG20). Key specifications — Monitored Parameters: Phase Failure; Manufacturer Part Number: RM22TG20; Brand: SCHNEIDER.
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 12 Pins/Terminals, 8 A, 24 to 240V AC/DC, Screw (MPN RM22UA21MR). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Overvoltage; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 12 Pins/Terminals, 8 A, 24 to 240V AC/DC, Screw (MPN RM22UA21MR). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Overvoltage; Brand: SCHNEIDER.
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 9 Pins/Terminals, 8 A, 60 to 280V AC, Screw (MPN RM22UB34). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Undercurrent; Pick Up Range: 110 to 240V AC/DC; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 9 Pins/Terminals, 8 A, 60 to 280V AC, Screw (MPN RM22UB34). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Undercurrent; Pick Up Range: 110 to 240V AC/DC; Brand: SCHNEIDER.
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 12 Pins/Terminals, 8 A, 24 to 240V AC/DC, Screw (MPN RM22UA22MR). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Overvoltage; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 12 Pins/Terminals, 8 A, 24 to 240V AC/DC, Screw (MPN RM22UA22MR). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Overvoltage; Brand: SCHNEIDER.
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 12 Pins/Terminals, 5 A, 20 to 80V AC/DC, Screw (MPN RM22UA31MR). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Undercurrent; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 12 Pins/Terminals, 5 A, 20 to 80V AC/DC, Screw (MPN RM22UA31MR). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Undercurrent; Brand: SCHNEIDER.
SCHNEIDER Phase Monitor Relay: DIN-Rail Mounted, 5 A Current Rating, 208 to 480V AC (MPN RM17TA00). Key specifications — Monitored Parameters: Asymmetry; Manufacturer Part Number: RM17TA00; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Phase Monitor Relay: DIN-Rail Mounted, 5 A Current Rating, 208 to 480V AC (MPN RM17TA00). Key specifications — Monitored Parameters: Asymmetry; Manufacturer Part Number: RM17TA00; Brand: SCHNEIDER.

More from SCHNEIDER

View all SCHNEIDER parts
SCHNEIDER Relay: DIN-Rail Mounted, 5 A Current Rating, 208 to 480V AC, 12 Pins/Terminals (MPN RM35BA10). Key specifications — Monitored Parameters: Phase Failure; Manufacturer Part Number: RM35BA10; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Relay: DIN-Rail Mounted, 5 A Current Rating, 208 to 480V AC, 12 Pins/Terminals (MPN RM35BA10). Key specifications — Monitored Parameters: Phase Failure; Manufacturer Part Number: RM35BA10; Brand: SCHNEIDER.
SCHNEIDER Time Delay Relay: DIN-Rail Mounted, 240V AC, 8 A, 6 Pins/Terminals, 0.05 sec – 300 hr (MPN RE22R1HMR). Key specifications — Contact Rating (DC): 8 A @ 24V; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Time Delay Relay: DIN-Rail Mounted, 240V AC, 8 A, 6 Pins/Terminals, 0.05 sec – 300 hr (MPN RE22R1HMR). Key specifications — Contact Rating (DC): 8 A @ 24V; Brand: SCHNEIDER.
SCHNEIDER Time Delay Relay: DIN-Rail Mounted, 240V AC, 8 A, 6 Pins/Terminals, 0.05 sec – 300 hr (MPN RE22R1DMR). Key specifications — Contact Rating (DC): 8 A @ 24V; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Time Delay Relay: DIN-Rail Mounted, 240V AC, 8 A, 6 Pins/Terminals, 0.05 sec – 300 hr (MPN RE22R1DMR). Key specifications — Contact Rating (DC): 8 A @ 24V; Brand: SCHNEIDER.
SCHNEIDER Relay: DIN-Rail Mounted, 5 A Current Rating, 183 to 528V AC, 6 Pins/Terminals (MPN RM17TT00). Key specifications — Monitored Parameters: Phase Failure; Manufacturer Part Number: RM17TT00; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Relay: DIN-Rail Mounted, 5 A Current Rating, 183 to 528V AC, 6 Pins/Terminals (MPN RM17TT00). Key specifications — Monitored Parameters: Phase Failure; Manufacturer Part Number: RM17TT00; Brand: SCHNEIDER.
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 12 Pins/Terminals, 8 A, 24 to 240V AC/DC, Screw (MPN RM22UA33MT). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Undercurrent; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Voltage Sensing Relay: DIN-Rail Mounted, 12 Pins/Terminals, 8 A, 24 to 240V AC/DC, Screw (MPN RM22UA33MT). Key specifications — Drop-Out Range: +/- 10%; Monitored Parameters: Undercurrent; Brand: SCHNEIDER.
SCHNEIDER Time Delay Relay: DIN-Rail Mounted, 12V AC/DC, 8 A, 4 Pins/Terminals, 0.1 sec – 100 hr (MPN RE22R2MJU). Key specifications — Contact Rating (DC): 8 A @ 12V; Delay Function: Off Delay; Input Voltage: 12V AC/DC; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Time Delay Relay: DIN-Rail Mounted, 12V AC/DC, 8 A, 4 Pins/Terminals, 0.1 sec – 100 hr (MPN RE22R2MJU). Key specifications — Contact Rating (DC): 8 A @ 12V; Delay Function: Off Delay; Input Voltage: 12V AC/DC; Brand: SCHNEIDER.
SCHNEIDER Level Control Relay: DIN-Rail Mounted, Dual Probe, 8 A Current Rating, 380 to 415V AC (MPN RM22LG11MT). Key specifications — Electrical Connection: Screw Terminals; Mounting Style: DIN Rail; Number of Probes: Dual Probe; Relay Function: Pump Up; Status Indicator: LED Indicator; Brand: SCHNEIDER.
SCHNEIDER
SCHNEIDER Level Control Relay: DIN-Rail Mounted, Dual Probe, 8 A Current Rating, 380 to 415V AC (MPN RM22LG11MT). Key specifications — Electrical Connection: Screw Terminals; Mounting Style: DIN Rail; Number of Probes: Dual Probe; Relay Function: Pump Up; Status Indicator: LED Indicator; Brand: SCHNEIDER.
SCHNEIDER Solid State Relay: DIN-Rail Mounted, 12 A Max Output Current, SCR, AC Output (MPN SSM1A312BDR). Key specifications — Brand: SCHNEIDER; Current Type: DC; Electrical Connection: Screw Clamp; Finger Safe: Yes; Input Current: 9 to 11 mA; Maximum Output Current without Heat Sink: 12 A; Mounting Style: DIN Rail; Output Voltage: 48 to 600V AC.
SCHNEIDER
SCHNEIDER Solid State Relay: DIN-Rail Mounted, 12 A Max Output Current, SCR, AC Output (MPN SSM1A312BDR). Key specifications — Brand: SCHNEIDER; Current Type: DC; Electrical Connection: Screw Clamp; Finger Safe: Yes; Input Current: 9 to 11 mA; Maximum Output Current without Heat Sink: 12 A; Mounting Style: DIN Rail; Output Voltage: 48 to 600V AC.