IronGuard Series Contactors & Overload Relays
Rugged contactors and smart overload relays for reliable motor switching and protection.
Overview
The IronGuard Series provides a comprehensive range of AC and DC contactors from 9 A to 820 A, paired with electronic overload relays featuring phase-loss detection, ground fault sensing, and predictive thermal modeling. Designed for millions of operations, IronGuard contactors feature bifurcated silver-alloy contacts and an energy-efficient AC coil design that reduces holding power by 80%. Snap-on auxiliary contacts and interface relays complete the motor control solution.
Key Features
- Bifurcated silver-nickel contacts for reliable switching even at low currents
- Energy-efficient AC coil with 80% power reduction in holding position
- Electronic overload relays with class 5 / 10 / 20 / 30 trip curves
- Phase-loss, phase-reversal, and ground fault detection built into overload relay
- Wide coil voltage range (0.8 to 1.1 x Us) for stable operation on weak supplies
- DIN rail and direct panel mount options with front- or side-mount auxiliaries
Technical Specifications
| Specification | Value |
|---|---|
| Contactor Ratings (AC-3) | 9 A / 18 A / 32 A / 50 A / 80 A / 115 A / 185 A / 300 A / 500 A / 820 A |
| Coil Voltage | 24 V AC/DC, 110 V AC, 230 V AC, 400 V AC (wide-range: 24-48 V DC universal) |
| Rated Voltage | Up to 690 V AC, 50/60 Hz |
| Overload Relay Range | 0.1 A to 820 A (class 10 standard, class 5/20/30 selectable) |
| Mechanical Life | 10 million operations (up to 115 A frame) |
| Electrical Life (AC-3) | 2 million operations at rated current |
| Auxiliary Contacts | Up to 4 NO + 4 NC snap-on blocks per contactor |
| Operating Temperature | -25 C to +60 C |
| Dimensions (32 A, 3P) | 3.5"W x 4.7"H x 3.3"D (89 x 119 x 84 mm) |
Applications
Certifications & Compliance
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