SIEMENS
SIEMENS 14BUC32BJ NEMA Magnetic Motor Starter Non-Reversing 24V AC 3 Pole 1NO Auxiliary 12A Overload
Non-reversing NEMA magnetic motor starter with 24V AC coil, 3 poles, 1NO auxiliary contact and 3–12 A electronic overload
- Non-reversing starter simplifies motor control wiring
- 24 V AC coil voltage suits low-voltage control circuits
- Three-pole design handles three-phase motor loads
- 1 NO auxiliary contact provides status feedback
- Electronic overload adjustable from 3 A to 12 A with selectable trip class
NEMA Starter for 3-Phase Motors
This SIEMENS 14BUC32BJ is a NEMA magnetic motor starter built for non-reversing three-phase applications. It operates on a 24V AC coil and provides electronic overload protection with a 3 A to 12 A adjustable range. The unit mounts on a surface and includes one normally open auxiliary contact. It is suited for industrial machinery requiring reliable motor starting up to 600V AC.
Fit for Fixed-Direction Motor Control
This starter suits facilities running pumps, fans, or conveyors that operate in a single direction. The non-reversing design means it cannot serve applications needing forward and reverse rotation. Buyers who need selectable trip classes beyond 5, 10, 20, or 30 should look at other models. It also does not fit DIN rail mounting without an adapter.
Steady Operation Under Continuous Load
Electronic overload protection monitors current continuously and trips according to the selected class during sustained overcurrent events. The 12 A maximum setting handles motors rated up to 1-1/2 hp at 240V AC three-phase without nuisance tripping. Auxiliary contacts remain stable for status signalling during long run cycles. The surface-mount enclosure dissipates heat effectively in panel installations.
Highlights
- Non-reversing starter simplifies motor control wiring
- 24 V AC coil voltage suits low-voltage control circuits
- Three-pole design handles three-phase motor loads
- 1 NO auxiliary contact provides status feedback
- Electronic overload adjustable from 3 A to 12 A with selectable trip class
Specifications
| Brand | SIEMENS |
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Questions about this item
What control circuit voltage must my panel supply for the 24 V AC coil to energise?
The starter requires a 24 V AC control supply; the coil is rated for that voltage and will not operate on DC or higher AC voltages.
Can I use this non-reversing starter with an existing reversing contactor on the same motor?
No, the starter is non-reversing only; pairing it with a reversing contactor would create conflicting control logic and is not supported.
How do I verify the electronic overload is set correctly for my motor's full-load current?
Adjust the dial between 3 A and 12 A to match the motor nameplate current, then confirm the trip class selector (5, 10, 20 or 30) matches the application.
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