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Siemens 3RH1140-1AP00-ZW95 — Contactors

Siemens 3RH1140-1AP00-ZW95 SIRIUS Auxiliary Contactor, 4 NO,

MPN3RH1140-1AP00-ZW95

Siemens SIRIUS 3RH1140-1AP00-ZW95 auxiliary contactor, size S00, 4 NO instantaneous contacts, 45 mm width, screw and snap-on mounting, IP20 front protection.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RH1140-1AP00-ZW95 — Identification
ParameterValue
Contactor frame sizeS00
3RH1140-1AP00-ZW95 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 110 V1 A
Rated value @ 220 V0.27 A
3RH1140-1AP00-ZW95 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz230 V
3RH1140-1AP00-ZW95 — Contacts & Poles
ParameterValue
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RH1140-1AP00-ZW95 — Connection & Mounting
ParameterValue
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting
3RH1140-1AP00-ZW95 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RH1140-1AP00-ZW95 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RH1140-1AP00-ZW95 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth72 mm

Product details

It provides four normally open (NO) instantaneous contacts, with no leading, lagging, or delayed switching — meaning all four close and open simultaneously with the coil. Rated for 10 A at 24 V (resistive), it also handles 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V, covering the typical control-voltage range in European 400 VAC panels. The 6 kV rated surge voltage withstand gives it solid margin for transient-heavy environments like motor-starter cabinets.

The four NO contacts are rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — these are the thermal (resistive) current ratings, AC-1 duty. For motor control circuits (AC-15), derate per the standard; the mechanical endurance of 30 million operations means this contactor will outlast most panel refreshes. Shock-rated at 10g / 5 ms and 5g / 10 ms, it's suited for applications with vibration from nearby contactors or motor starters. Contact reliability is specified as one incorrect switching operation per 100 million cycles at 17 V, 1 mA — useful for PLC-level signals where dry switching can be a problem.

Integration Notes

The depth includes the coil terminals and the snap-on latch. When panel-layout planning, allow at least 10 mm clearance below for wiring access. Coil ratings: 0.8–1.1 A at 50 Hz, 0.85–1.1 A at 60 Hz, both at 230 V.

Frequently asked questions

What is the closest functional second-source to the 3RH1140-1AP00-ZW95?

The 3RT1017-1AP01 is a contactor in the same SIRIUS S00 family and shares the same footprint and terminal layout. However, the 3RT1017-1AP01 is a power contactor with main contacts, not an auxiliary contactor — it won't drop in as a direct replacement for the 3RH1140-1AP00-ZW95's auxiliary-only function without rewiring the control circuit.

What is the depth of the 3RH1140-1AP00-ZW95?

The depth is 72 mm. This includes the coil terminals and snap-on latch; allow clearance for wiring below the contactor.

What wire sizes does the 3RH1140-1AP00-ZW95 accept?

It accepts solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm² per terminal. Two terminals per pole allow looping or daisy-chaining.

MPN
3RH1140-1AP00-ZW95