ATC-Diversified Electronics, a Marsh Bellofram division, delivers high-reliability industrial timing controls, motor protection, alternating relays, and current monitors for demanding industrial environments.
Parts that are not part of a series
Company background and product focus
ATC-Diversified Electronics, a division of Marsh Bellofram, combines the expertise of Automatic Timing and Controls with Diversified Electronics to offer comprehensive industrial control solutions. For over half a century, the company has provided some of the industry's highest-reliability electronic control products.
The product line includes:
ATC-Diversified Electronics pioneered the first phase monitor relay, designed to protect three-phase equipment from adverse conditions such as phase loss, undervoltage, and phase reversal. Their rugged, high-reliability products are engineered for factory automation, food processing, water treatment, plastics, packaging, and OEM applications.
© 2026 Zenode. All rights reserved.




Product families from ATC-Diversified Electronics
| Series | Category | Parts | Status | Description |
|---|---|---|---|---|
| Series | Category | Parts | Status | Description |
|---|---|---|---|---|
| Time Delay Relays | 1 | Active | ||
| Time Delay Relays | 1 | Active | ||
| Industrial Automation and Controls | 1 | Active | ||
| Industrial Automation and Controls | 1 | Active | ||
| Time Delay Relays | 1 | Active | ||
| Industrial Automation and Controls | 1 | Active | ||
| Time Delay Relays | 2 | Active | ||
| Time Delay Relays | 1 | Active | ||
| Time Delay Relays | 1 | Active | ||
| Industrial Automation and Controls | 2 | Active |
Parts from ATC-Diversified Electronics that are not part of a series
| Part Information | Pricing (lowest) | Accessory Type | For Use With/Related Products |
|---|---|---|---|
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | 328E Series |
![]() ATC-Diversified Electronics MOUNTING HARDWARE AND HOLD DOWN | Sign in to see pricing | Socket | — |