SIEMENS
SIEMENS 40CP32AG 277VAC 3P 18A NEMA 0 Contactor
A 277 VAC three-pole NEMA Size 0 magnetic contactor rated 18 A inductive with a 190-240 V AC coil and screw-terminal connections
- NEMA Size 0 handles 18 A inductive loads
- Three-pole design switches three phases simultaneously
- 277 VAC coil voltage matches industrial control circuits
- Non-reversing operation simplifies starter wiring
- Screw terminals provide secure field connections
Industrial motor starter
The SIEMENS 40CP32AG is a NEMA Size 0 non-reversing magnetic contactor designed for three-phase motor control in industrial machinery and automation panels. It suits electricians and panel builders who need reliable switching for inductive loads up to 18 amperes.
18 A inductive capacity
Rated for 18 amperes full-load inductive current at 277 VAC, the contactor handles typical motor-starting duties within NEMA Size 0 limits. The coil operates across 190-220 VAC and 220-240 VAC ranges, while resistive loads are not rated, so heating elements or similar circuits need separate evaluation.
Panel-mount with screw terminals
Surface mounting and screw terminals simplify wiring inside enclosures without a dedicated NEMA-rated housing. One built-in normally-open auxiliary contact supports status signalling, and the module accepts up to eight additional auxiliary blocks for expanded control logic. The 4.31 by 4.25 inch footprint fits standard panel layouts.
Highlights
- NEMA Size 0 handles 18 A inductive loads
- Three-pole design switches three phases simultaneously
- 277 VAC coil voltage matches industrial control circuits
- Non-reversing operation simplifies starter wiring
- Screw terminals provide secure field connections
Specifications
| Brand | SIEMENS |
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Questions about this item
Will this 277 VAC coil contactor fit in the same panel cutout as my older NEMA Size 0 starter?
Yes, the overall height is 4.31 in and width is 4.25 in, matching standard NEMA Size 0 dimensions for direct replacement.
How can I verify the 190-220/220-240 V AC coil is energised correctly after wiring?
Measure coil voltage at terminals A1 and A2 with a multimeter; the contactor should pull in cleanly within the rated range.
Does the box include overload relay heaters or must I order them separately for an 18 A motor load?
The contactor ships with one 1NO auxiliary contact and screw terminals only; overload relay and heaters are sold separately.
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