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Allen-Bradley 193-A1D1 Solid-State Overload Relay
Allen-Bradley 193-A1D1 Solid-State Overload Relay
Brand/Manufacturer: Allen-Bradley
Order Number: 193-A1D1
Type: Solid-State Overload Relays
Country of Origin: USA
Condition: Original Brand
Lead Time: Available in stock
Payment Term: 100% TT In Advance
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Description
The 193-A1D1 is a Bulletin 193 SMP-1 electronic solid-state overload relay engineered for 3-phase AC motor protection. Featuring an adjustable full-load current (FLC) range of 1.0 to 2.9 A, a fixed Class 10 trip curve, and manual reset functionality, it connects directly to Allen-Bradley Bulletin 100-A and 104-A contactors (sizes A09 through A30).
Solid-State Thermal Modeling & Protection Features
The module utilizes an application-specific integrated circuit (ASIC) to model motor thermal characteristics accurately using true RMS current measurement. In contrast to traditional bimetallic relays, the solid-state design consumes approximately 150 mW of power, significantly reducing heat dissipation inside control enclosures while delivering built-in phase-loss protection that trips within 2 seconds under single-phasing conditions.
Contactor Compatibility & Mounting Architecture
Designed for direct plug-in mounting without external jumper wires or secondary mounting hardware, the module physically attaches to Bulletin 100-A and 104-A IEC contactor frames. Main power conductors feed directly into screw-type line terminals, while integrated auxiliary contacts support local and remote alarm indication loops.
| Parameter | Specification |
|---|---|
| Model | 193-A1D1 |
| Brand | Allen-Bradley |
| Product Type | Solid-State Overload Relays |
| Product Line | Bulletin 193 (SMP-1 Series) |
| Current Adjustment Range | 1.0 - 2.9 A |
| Trip Class | Class 10 |
| Reset Mode | Manual Reset |
| Contactor Compatibility | Bulletin 100-A / 104-A (A09 to A30) |
| Internal Power Consumption | ~150 mW |
| Operating Temperature | -25 deg C to 60 deg C |
| Weight | 0.40 lbs (0.18 kg) |
Installation Notes
Before mounting, ensure the contactor load terminals are fully opened to accept the relay's connection pins. Tighten terminal screws to the recommended torque of 1.8 Nm (16 lb-in) to maintain solid mechanical and electrical connection under industrial vibration conditions.
Frequently Asked Questions
Q: What is the primary advantage of the 193-A1D1 over older bimetallic overload relays? A: The solid-state electronic modeling lowers power consumption to roughly 150 mW and provides rapid 2-second phase-loss protection to protect motor windings during single-phasing events.
Q: Can the reset mode on the 193-A1D1 be converted to automatic reset? A: No, the 193-A1D1 features a dedicated manual reset mechanism. Automated reset functionality requires a Bulletin 193-A4 catalog variant (such as the 193-A4D1).
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Testimonials
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We’ve worked with IndustriaX Limited on several urgent orders for automation components. Their ability to provide original, factory-sealed parts with full documentation—often from in-stock inventory—has significantly reduced our downtime. The delivery is consistently fast, and their logistics team is highly responsive. IndustriaX has become one of our most trusted global suppliers for industrial spare parts.
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Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
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Finding authentic automation parts has always been a challenge, especially for discontinued models. IndustriaX Limited has impressed us with their genuine stock, clear product traceability, and prompt updates. We’ve verified their shipments against OEM specs multiple times, and the results are flawless. They’re now our preferred sourcing partner for critical systems.
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