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Square D 9007 limit switch with cross roller plunger actuator on top, miniature metal body

SQUARE D

SQUARE D 9007MS03S0300 Limit Switch Cross Roller Plunger SPDT

SKU CH-XCAW-WF17B

A miniature SPDT limit switch with a cross roller plunger rated for 10 A at 300 V AC and NEMA 1, 2, 4, 6, 6P, 12, 13 protection

  • TypeIndustrial Electrical Controls & Automation
  • SPDT contacts give flexible control wiring
  • 10 A at 300 V AC handles demanding loads
  • 5 A at 300 V DC suits DC circuits
  • NEMA 1, 2, 4, 6, 6P, 12, 13 ratings protect against harsh environments
  • Cross roller plunger with 0.88 in actuator length ensures reliable actuation

Industrial Limit Switch for Machine Control

The SQUARE D 9007MS03S0300 is a miniature limit switch built for industrial automation and machine safety circuits. Its cross roller plunger actuator suits applications where a cam or dog moves perpendicular to the switch axis. The SPDT contact form provides one normally open and one normally closed circuit in a single compact housing rated for NEMA 1, 2, 4, 6, 6P, 12 and 13 environments.

Electrical Ratings and Environmental Sealing

The switch carries 10 A at 300 V AC and 5 A at 300 V DC, making it suitable for standard control-voltage circuits. The body measures 1.75 in high, 1.58 in wide and .62 in deep, with an actuator length of .88 in. No boot seal is fitted on the actuator, so the NEMA ratings rely on the body enclosure alone for protection against dust, water and oil ingress.

SPDT Contact Form Decides Suitability

The single-pole double-throw contact arrangement is the specification that determines whether this switch fits the control logic. It supplies one make and one break path per actuation, so circuits requiring dual make or dual break contacts cannot use this model. Buyers needing a different contact form or a boot-sealed actuator should select an alternative part.

Highlights

  • SPDT contacts give flexible control wiring
  • 10 A at 300 V AC handles demanding loads
  • 5 A at 300 V DC suits DC circuits
  • NEMA 1, 2, 4, 6, 6P, 12, 13 ratings protect against harsh environments
  • Cross roller plunger with 0.88 in actuator length ensures reliable actuation

Specifications

BrandTELEMECANIQUE SENSORS
TypeIndustrial Electrical Controls & Automation

Questions about this item

How is the 9007MS03S0300 limit switch mounted and what alignment mistake should I avoid?

Mount the miniature body (1.58 in wide × 1.75 in high × .62 in deep) with two screws through the base; align the cross-roller plunger so the 0.88 in actuator travels perpendicular to the roller axis — angling the approach causes premature wear or missed actuation.

What maintenance or replacement will the cross-roller plunger need over time?

The roller and plunger shaft are the only moving parts; inspect for flat spots on the roller or excessive play in the 0.88 in travel — replace the complete switch if the roller binds or the SPDT contacts show pitting from 10 A / 300 V AC or 5 A / 300 V DC loads.

Which rating limits continuous operation first — the contacts or the enclosure?

The SPDT contacts reach their 10 A / 300 V AC (5 A / 300 V DC) thermal limit before the NEMA 1, 2, 4, 6, 6P, 12, 13 enclosure does, so sustained high-current cycling dictates duty cycle.

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