SIEMENS
SIEMENS 40BP32AF contactor 3P 9A 110/120V AC NEMA 00
A 3-pole NEMA Size 00 magnetic contactor rated for 9 A inductive loads at 110/120 V AC with one normally-open auxiliary contact and screw-terminal connections
- 3-pole design handles three-phase motor loads
- 9 A inductive rating suits small industrial motors
- 110/120 V AC coil matches common control voltages
- NEMA size 00 fits compact panel space
- Screw terminals simplify field wiring
Industrial Motor Starter
The SIEMENS 40BP32AF is a NEMA Size 00 magnetic contactor designed for non-reversing three-phase motor control. It handles up to 9 A inductive full-load current with a 110/120 V AC coil voltage. The unit mounts directly on a surface using screw terminals for secure wiring connections. Ideal for industrial panels requiring a compact starter without an enclosure.
Thermal and Power Behaviour
The contactor operates from a 110/120 V AC coil that draws power only when energised. With no enclosure fitted, heat dissipates freely into the surrounding panel space. Silent operation is typical because there are no moving fans or forced-air components. Power draw remains limited to the coil consumption during the engaged state.
Decisive Specification
The 9 A inductive current rating at NEMA Size 00 determines whether this starter matches the motor load. Exceeding this value risks contact welding and premature failure. Buyers needing higher through-current or reversing capability must select a different NEMA size or contactor style. Verify the motor nameplate current before specifying this part.
Highlights
- 3-pole design handles three-phase motor loads
- 9 A inductive rating suits small industrial motors
- 110/120 V AC coil matches common control voltages
- NEMA size 00 fits compact panel space
- Screw terminals simplify field wiring
Specifications
| Brand | SIEMENS |
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Questions about this item
How is the SIEMENS 40BP32AF contactor mounted and what wiring step is often missed?
Surface-mount the unit using its base holes, then connect control and power wires to the screw terminals; the step often missed is securing the 110/120V AC coil leads to the correct coil terminals before energising.
Which part of the contactor will need replacement after repeated switching cycles?
The main power contacts and the internal 110/120V AC coil are the wear items; plan to replace the contactor when contact erosion causes voltage drop or the coil fails to pull in reliably.
What is the first limit reached when the contactor runs continuously at its 9 A inductive rating?
The 9 A full-load inductive current rating is the primary limit; exceeding it causes contact overheating and accelerated wear, so the thermal limit of the contact set appears first under sustained use.
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