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ATC DIVERSIFIED ELECTRONICS SUA440ASA Phase Monitor Relay - Socket-Mounted Relays
ATC DIVERSIFIED ELECTRONICSSocket-Mounted Relays

ATC DIVERSIFIED ELECTRONICS SUA440ASA Phase Monitor Relay

The ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay is a socket-mounted relay from the SUA Series. It monitors for phase loss with an input voltage of 430 to 480V AC. This device is designed to protect three-phase…

SKU 3G-OTH-37059

Brand
ATC DIVERSIFIED ELECTRONICS
Item
SUA440ASA Phase Monitor Relay
Category
Socket-Mounted Relays
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ATC DIVERSIFIED ELECTRONICS
Manufacturer Part Number
SUA440ASA
Series
SUA Series
Type
SUA Series
AC
430 to 480V
Input Voltage
430 to 480V AC
Monitored Parameters
Phase Loss

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ATC DIVERSIFIED ELECTRONICS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay is a socket-mounted relay from the SUA Series. It monitors for phase loss with an input voltage of 430 to 480V AC. This device is designed to protect three-phase equipment by detecting a loss of phase and triggering a response.

Frequently Asked Questions

What is the ATC DIVERSIFIED ELECTRONICS SUA440ASA phase monitor relay used for?

The SUA440ASA phase monitor relay protects three-phase industrial equipment by detecting phase loss. When a phase is lost, the relay triggers a response to shut down or alarm connected machinery, preventing damage to motors, compressors, and pumps in manufacturing, HVAC, and process control applications.

What are the specifications of the ATC DIVERSIFIED ELECTRONICS SUA440ASA?

The SUA440ASA is a socket-mounted relay from the SUA Series. It monitors for phase loss with an input voltage of 430 to 480V AC. The manufacturer part number is SUA440ASA, and it is designed for protecting three-phase equipment from phase-loss conditions.

Where to buy the ATC DIVERSIFIED ELECTRONICS SUA440ASA worldwide?

3G Electric supplies the ATC DIVERSIFIED ELECTRONICS SUA440ASA phase monitor relay worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this socket-mounted relay.

How to install the ATC DIVERSIFIED ELECTRONICS SUA440ASA phase monitor relay?

Install the SUA440ASA by mounting it into a compatible socket and wiring the three-phase input voltage (430 to 480V AC) per the wiring diagram. Ensure power is off during installation. Follow standard relay socket-mounting best practices and verify phase rotation before energizing the monitored equipment.

Used in

Common applications for ATC DIVERSIFIED ELECTRONICS
Industrial motor protection — ATC Diversified Electronics SLU-100 series phase monitor relay for three-phase motor control panels
Hazardous environment safety — ATC Diversified Electronics ISO120AFN safety monitoring relay for intrinsically safe circuits in chemical plants
Pump alternation — ATC Diversified Electronics ARM2003 alternating relay for sequencing dual pumps in wastewater treatment
Undervoltage protection — ATC Diversified Electronics UOA240AFA voltage sensor relay for monitoring 240V AC supply in manufacturing equipment
Time-delay control — ATC Diversified Electronics 339B200Q2X time-delay relay for adjustable on/off delays in conveyor systems
Voltage monitoring — ATC Diversified Electronics TDT120AKA060 voltage sensor relay for 110/240V AC/DC systems in HVAC controls

ATC DIVERSIFIED ELECTRONICS Products

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

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Compatible alternatives & equivalents

Cross-referenced by specification & description
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 430 to 480V AC, SLA Series (MPN SLA440ASA)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 430 to 480V AC, SLA Series (MPN SLA440ASA)
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 190 to 270V AC, SLA Series (MPN SLA230ALA)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 190 to 270V AC, SLA Series (MPN SLA230ALA)
Surface-mounted relay from the SLA Series that monitors three-phase power systems for phase loss. Operates on 430 to 480V AC input voltage. Used to protect motors, pumps, and compressors by detecting phase loss and preventing equipment damage
ATC DIVERSIFIED ELECTRONICS
Surface-mounted relay from the SLA Series that monitors three-phase power systems for phase loss. Operates on 430 to 480V AC input voltage. Used to protect motors, pumps, and compressors by detecting phase loss and preventing equipment damage
Surface-mounted relay from the SLM Series that monitors phase unbalance on 440 to 490V AC systems. Detects phase loss or imbalance to protect equipment such as motors, pumps, and compressors in industrial control applications
ATC DIVERSIFIED ELECTRONICS
Surface-mounted relay from the SLM Series that monitors phase unbalance on 440 to 490V AC systems. Detects phase loss or imbalance to protect equipment such as motors, pumps, and compressors in industrial control applications
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 208 to 480V AC, SLU-100 Series (MPN SLU100ASA)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 208 to 480V AC, SLU-100 Series (MPN SLU100ASA)
Socket-mounted phase monitor relay from the SLA Series. Monitors phase reversal in three-phase systems. Input voltage range 95 to 130V AC. Suitable for industrial applications requiring phase sequence detection to protect motors and equipment
ATC DIVERSIFIED ELECTRONICS
Socket-mounted phase monitor relay from the SLA Series. Monitors phase reversal in three-phase systems. Input voltage range 95 to 130V AC. Suitable for industrial applications requiring phase sequence detection to protect motors and equipment

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