Siemens 3SE5 Series Round Plunger Limit Switch, 1 NO/2 NC, IP66, IP67, Metal Housing, 4 A

RS Stock No.:: 768-6500
Mfr. Part No.:: 3SE5122-0MA00
Brand:: Siemens

Siemens 3SE5 Series Round Plunger Limit Switch, 1 NO/2 NC, IP66, IP67, Metal Housing, 4 A

Subtotal (1 unit)*

£30.76

(exc. VAT)

£36.91

(inc. VAT)

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Shipping from 30 March 2026

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Units	Per unit
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RS Stock No.:: 768-6500
Mfr. Part No.:: 3SE5122-0MA00
Brand:: Siemens

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Siemens
	Product Type	Limit Switch
	Actuator Type	Round Plunger
	Contact Configuration	1 NO/2 NC
	IP Rating	IP66, IP67
	Housing Material	Metal
	Contact Type	Slow Action
	Switching Current	4 A
	Terminal Type	M20
	Series	3SE5
	Minimum Operating Temperature	-25°C
	Maximum Operating Temperature	85°C
	Length	56mm
	Depth	78mm
	Width	37.8 mm
	Standards/Approvals	CCC, CE, CSA, EAC, EN, IEC, RoHS, UL
	Hazardous Area Certification	No
	Mounting Orientation	Universal
	Mechanical Life	15000000Cycles
	Conduit Entry	M20 x 1.5
	Operating Force	20N

	Select all
	Brand Siemens
	Product Type Limit Switch
	Actuator Type Round Plunger
	Contact Configuration 1 NO/2 NC
	IP Rating IP66, IP67
	Housing Material Metal
	Contact Type Slow Action
	Switching Current 4 A
	Terminal Type M20
	Series 3SE5
	Minimum Operating Temperature -25°C
	Maximum Operating Temperature 85°C
	Length 56mm
	Depth 78mm
	Width 37.8 mm
	Standards/Approvals CCC, CE, CSA, EAC, EN, IEC, RoHS, UL
	Hazardous Area Certification No
	Mounting Orientation Universal
	Mechanical Life 15000000Cycles
	Conduit Entry M20 x 1.5
	Operating Force 20N

RoHS Status: Exempt

COO (Country of Origin):: DE

3SE5 Limit Switches, Modular Units

The SIRIUS 3SE5 limit switches provide the dependable performance required in everyday industrial applications thanks to their modular, consistent design and wide choice of variants and operating mechanisms.

The standard design and function of the limit switches not only make it easy to select the right switch but also enable quick and easy installation, wiring and maintenance.

The SIRIUS 3SE5 is designed for safety applications up to Category 4 according to ISO 13849-1 (EN 954-1) when you select the right product and use them properly in conjunction with fail-safe evaluation units such as the 3TK28, ASISafe, SIMATIC or SINUMERIK.

Enclosure sizes

Open-type position switch IP20 (3SE5 250-*****)

Plastic enclosures according to EN 50047, 31 mm wide, IP65, 1 cable entry (3SE5 232-***** & 3SE5 234-*****)

Plastic enclosures according to EN 50041, 40mm wide, IP66/IP67, 1 cable entry (3SE5 132-***** & 3SE5 134-*****)

Plastic enclosures, 50 mm wide, IP66/IP67, 2 cable entries (3SE5 242-*****)

Metal enclosures according to EN 50047, 31 mm wide, IP66/IP67, 1 cable entry (3SE5 212-***** & 3SE5 214-*****)

Metal enclosures according to EN 50041, 40mm wide, IP66/IP67, 1 cable entry (3SE5 112-*****)

Metal enclosures, 56 mm wide, IP66/IP67, 3 cable entries (3SE5 122-*****)

XL metal enclosures with 4 to 6 contacts, 56 mm wide, IP66/IP67, 3 cable entries (3SE5 162-*****)

Enclosures with an ambient temperature to -40°C (3SE5 ***-*****-1AJ0)

Enclosure versions

With contact blocks with two or three contacts (screw terminals) designed as slow-action or snap-action contacts; the slow-action contacts also with make-before-break (refer to tech. data)

Optional LED status display (3SE5 ***-1K*** & 3SE5 ***-1L***)

With M20 x 1.5 connection thread or mounted 4 or 5 pole M12 connector socket (refer to tech. data)

Versions with increased corrosion protection (3SE5 ***-*****-1CA0)

Versions for operating temperature up to -40°C (3SE5 ***-*****-1AJ0)

Features

Easy replacement and mounting of actuator heads through plug mounting with uniform interface

Integrated chlorinated rubber diaphragm (high functional safety in cold and aggressive environments)

All actuator heads can be rotated in 22.5° increments

Mounting time reductions of up to 25% through rapid connection system for plastic enclosures

Versions with 3-pole contact blocks ensure increased safety through redundant disconnection and additional signalling while featuring the same enclosure dimensions as 2-pole contact blocks

IP65/66/67 protection

Switching points and mounting according to EN 50041 or EN 50047

Built in rounded plunger with 3mm over travel, (total travel 9mm) for greater tolerance when switching