Allen-Bradley Contactors & Motor Control

Allen-Bradley contactors and motor control hardware are catalogued here as one umbrella covering both IEC and NEMA lines. The family holds 67 catalogued part numbers across five Allen-Bradley bulletins.

Bulletins in this family

• Bulletin 100 — 56 catalogued parts. This is the core IEC platform of the family and includes standard IEC contactors, Bulletin 100S safety contactors, the electronically controlled MCS-E range and related Bulletin 100 accessories such as auxiliary contacts, contact blocks and surge suppression.
• Bulletin 104 — 3 catalogued parts, recorded internally as MCS-C reversing contactors.
• Bulletin 400-DP — 1 catalogued part, a definite-purpose contactor.
• Bulletin 500F — 2 catalogued parts, NEMA contactors.
• Bulletin 509 — 5 catalogued parts, NEMA motor starters.

Series in this family

• 100 Series IEC Contactors — 56 catalogued products. This series covers the Bulletin 100 range only; the Bulletin 104, 400-DP, 500F and 509 parts are listed at family level and are not part of it.

Within Bulletin 100 the prefix indicates the group: 100-C is the standard IEC range, 100-K covers the miniature frames, 100-D the larger frames, 100-E the electronically controlled range and 100S- the safety contactors. Across the family as a whole the mix is deliberately broad, so not every part here is a contactor: the Bulletin 509 parts are motor starters and a number of Bulletin 100 entries are accessories rather than complete devices. Contact us with the part number, coil voltage and auxiliary configuration you need and we will confirm availability and lead time.

Common Faults

• Capacitor degradation after 7–10 years of service
• Communication errors after firmware drift
• Input/output channel failure from over-voltage events
• Cooling fan failure causing thermal shutdown
• Connector wear in high-vibration installations

Troubleshooting

1. Confirm supply voltage and grounding
2. Inspect diagnostic LEDs and fault codes
3. Verify firmware/configuration matches the application
4. Swap with a known-good unit to isolate the fault
5. Check field wiring and termination

Replacement Options

• Direct OEM replacement (preferred)
• Refurbished OEM unit (cost-effective)
• Compatible cross from the same manufacturer's current catalog
• Equivalent from an alternative manufacturer (engineering review required)

Migration Path

When migrating away from discontinued units, plan for: firmware compatibility, wiring changes, software/configuration migration, spare-parts stock, and field commissioning. Palm Parts Solution can supply both the current generation and stock of the legacy unit while you plan the migration.

Compatibility

Units in this family are compatible with the manufacturer's standard control architecture, communication protocols (where applicable), and accessory ecosystem. Always cross-reference the exact catalog number, firmware revision, and hardware series before installation.

Frequently Ordered

Customers ordering from this family frequently pair the unit with matching cables, terminal blocks, mounting kits, and surge protection. Contact our team for a complete BOM review.