Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 430 to 480V AC - Socket-Mounted Relays
ATC DIVERSIFIED ELECTRONICSSocket-Mounted Relays

ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 430 to 480V AC

The ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay is a socket-mounted relay from the SLA Series. It monitors for phase loss and operates with an input voltage of 430 to 480V AC. This device is identified by…

SKU 3G-OTH-37170

Brand
ATC DIVERSIFIED ELECTRONICS
Item
Phase Monitor Relay: Socket Mounted, 430 to 480V AC
Category
Socket-Mounted Relays
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

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
SLA440ASA
Series
SLA Series
Type
SLA Series
AC
430 to 480V
Input Voltage
430 to 480V AC
Monitored Parameters
Phase Loss

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

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 SLA Series. It monitors for phase loss and operates with an input voltage of 430 to 480V AC. This device is identified by manufacturer part number SLA440ASA.

Frequently Asked Questions

What is the ATC DIVERSIFIED ELECTRONICS SLA440ASA phase monitor relay used for?

The ATC DIVERSIFIED ELECTRONICS SLA440ASA phase monitor relay is used to protect three-phase motors and equipment by detecting phase loss conditions. It is socket-mounted for easy installation in industrial control panels, ensuring reliable operation across 430 to 480V AC systems.

What are the specifications of the ATC DIVERSIFIED ELECTRONICS SLA440ASA?

The ATC DIVERSIFIED ELECTRONICS SLA440ASA is a socket-mounted phase monitor relay from the SLA Series. It monitors for phase loss with an input voltage of 430 to 480V AC. The manufacturer part number is SLA440ASA, and it is designed for industrial electrical protection applications.

Where to buy the ATC DIVERSIFIED ELECTRONICS SLA440ASA worldwide?

3G Electric supplies the ATC DIVERSIFIED ELECTRONICS SLA440ASA phase monitor relay worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to source this SLA Series relay for your phase loss monitoring needs.

How to install the ATC DIVERSIFIED ELECTRONICS SLA440ASA phase monitor relay?

Install the ATC DIVERSIFIED ELECTRONICS SLA440ASA by mounting it into a compatible 8- or 11-pin socket. Ensure the input voltage matches your system (430 to 480V AC). Follow standard wiring practices for phase loss relays, and test the relay after installation to confirm proper monitoring.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 190 to 270V AC, SLA Series (MPN SLA230ASA)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 190 to 270V AC, SLA Series (MPN SLA230ASA)
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 430 to 480V AC, SLA Series (MPN SLA440ALE)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 430 to 480V AC, SLA Series (MPN SLA440ALE)
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 95 to 130V AC, SLA Series (MPN SLA120ASA)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: Socket Mounted, 95 to 130V AC, SLA Series (MPN SLA120ASA)
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 190 to 270V AC, SLA Series (MPN SLA230ALE)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 190 to 270V AC, SLA Series (MPN SLA230ALE)
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 440 to 490V AC, SLM Series (MPN SLM440ASE)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 440 to 490V AC, SLM Series (MPN SLM440ASE)
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 440 to 480V AC, SLD Series (MPN SLD440ALE)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Phase Monitor Relay: 440 to 480V AC, SLD Series (MPN SLD440ALE)

More from ATC DIVERSIFIED ELECTRONICS

View all ATC DIVERSIFIED ELECTRONICS parts
ATC DIVERSIFIED ELECTRONICS Time-Delay Relay: Socket Mounted, 10 A, 11 Pins/Terminals, 1 sec – 10 hr (MPN 328E200F10XX)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Time-Delay Relay: Socket Mounted, 10 A, 11 Pins/Terminals, 1 sec – 10 hr (MPN 328E200F10XX)
ATC DIVERSIFIED ELECTRONICS Time-Delay Relay: Socket Relay Mounting, 24V AC to 240V AC/24V DC (MPN 3-0319E030F1C)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Time-Delay Relay: Socket Relay Mounting, 24V AC to 240V AC/24V DC (MPN 3-0319E030F1C)
ATC DIVERSIFIED ELECTRONICS Pump Seal Failure Relay: 10 A Current Rating, 120V AC, 11 Pin (MPN SPM120AAA100K)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Pump Seal Failure Relay: 10 A Current Rating, 120V AC, 11 Pin (MPN SPM120AAA100K)
ATC DIVERSIFIED ELECTRONICS Time-Delay Relay: Socket Mounted, 10 A, 11 Pins/Terminals, 1 sec – 10 hr (MPN 407C100F3X)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Time-Delay Relay: Socket Mounted, 10 A, 11 Pins/Terminals, 1 sec – 10 hr (MPN 407C100F3X)
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)
ATC DIVERSIFIED ELECTRONICS Time-Delay Relay: Socket Mounted, 12 Pins/Terminals, 0.001 sec – 200 hr (MPN 655-8-4000)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Time-Delay Relay: Socket Mounted, 12 Pins/Terminals, 0.001 sec – 200 hr (MPN 655-8-4000)
ATC DIVERSIFIED ELECTRONICS Current Sensor Relay: Surface Mounted, 200 A Current Rating, Overcurrent (MPN CMG0101)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Current Sensor Relay: Surface Mounted, 200 A Current Rating, Overcurrent (MPN CMG0101)
ATC DIVERSIFIED ELECTRONICS Temp Monitoring Relay: 10 A Current Rating, 120V AC, 11 Pin, SPM Series (MPN SPM120ADA)
ATC DIVERSIFIED ELECTRONICS
ATC DIVERSIFIED ELECTRONICS Temp Monitoring Relay: 10 A Current Rating, 120V AC, 11 Pin, SPM Series (MPN SPM120ADA)