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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
Part Number
SUA440ASA
Category
Socket-Mounted Relays
Available to Order
Also known as:SUA440ASAATC DIVERSIFIED ELECTRONICS
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Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

ATC DIVERSIFIED ELECTRONICS
Manufacturer Part Number
SUA440ASA
Series
SUA Series
Type
SUA Series
AC
430 to 480V
Restart
Auto
Standards
CSA; cURus
Body Depth
1.75 in
Body Width
2.38 in
Body Height
3.1 in
Catalog Page
N/A
Contact Form
SPDT
Undervoltage
90% of Nominal
Input Voltage
430 to 480V AC Input Voltage This is the amount of input voltage required to activate the relay.
Phase Reversal
Yes
Country of Origin
USA (subject to change)
Power Consumption
3 VA Power Consumption This refers to the minimum amount of power that must be drawn by the relay to remain activated.
Contact Rating (AC)
10 A @ 240V Contact Rating (AC) This alternating voltage and current (AC) represent the load rating of the relay's contacts.
Monitored Parameters
Phase Loss Phase Reversal Phase Sequence Undervoltage
Relay Mounting Style
Socket
Phase Loss Sensitivity
Yes
Electrical Connection Type
Pin

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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 control panels — SLA Series socket-mounted phase monitor relay (SKU 896DL4) for phase sequence protection of three-phase equipment.
Motor protection — SUA Series phase monitor relay (SKU 896DM3) detects phase loss at 430-480V AC to prevent motor damage.
Pump and compressor systems — SLD Series surface-mount relay (SKU 896DL7) monitors phase loss and under-voltage at 440-480V AC.
Sequencing and timing circuits — Time-delay relay (SKU 896DJ3) with 0.001 sec to 200 hr range for controlled start-up of industrial equipment.
Voltage monitoring in panels — Undervoltage relay (SKU 896DN0) with pick-up 215-260V AC and drop-out 205-250V AC for 240V AC systems.
Phase unbalance detection — SLM Series surface-mount relay (SKU 896DL8) protects motors and pumps on 440-490V AC systems from unbalance conditions.
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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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