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Siemens 3RP1555-2AR30 — Time Delay Relays

Siemens 3RP1555-2AR30 SIRIUS Monitoring Relay, 42-48V AC/DC,

MPN3RP1555-2AR30

Siemens SIRIUS monitoring relay, 3RP1555-2AR30, 22.5 mm wide, adjustable time 0.05-100 s, 5 A thermal current, 42-48 V AC/DC control supply, relay output, screw and snap-on mounting onto 35 mm standard mounting rail.

$143.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RP1555-2AR30 — Identification
ParameterValue
Product designationtiming relay
3RP1555-2AR30 — Timing
ParameterValue
ON-delayNo
OFF-delayNo
Delayed switching1
At 24 V1 A
Influence of ambient temperature±5 %
3RP1555-2AR30 — Electrical
ParameterValue
Control supply voltage type (AC/DC)AC/DC
At 50 Hz42 ... 48 V
At 60 Hz42 ... 48 V
Rated surge voltage withstand4 000 V
Initial value0.85
Full-scale value1.1
3RP1555-2AR30 — Output / Contacts
ParameterValue
At 250 V0.1 A
At 125 V0.2 A
3RP1555-2AR30 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-40 ... +85 °C
Transport temperature range-40 ... +85 °C
Operating humidity range10 ... 95 %
IP protection ratingIP20
Pollution degree3
Max. installation altitude2 000 m
Shock resistance (IEC 60068-2-27)11g / 15 ms
Vibration resistance (IEC 60068-2-6)10 ... 55 Hz / 0.35 mm
ESD immunity (IEC 61000-4-2)4 kV contact discharge / 8 kV air discharge
Burst immunity (IEC 61000-4-4)2 kV network connection / 1 kV control connection
3RP1555-2AR30 — Mechanical
ParameterValue
Fastening methodscrew and snap-on mounting onto 35 mm standard mounting rail
Mounting positionany
Removable terminalsYes
Width22.5 mm
Height84 mm
Depth91 mm
Wire range, solid (AWG)24 ... 16
Wire range, stranded (AWG)24 ... 16
Wire range, finely stranded w/ ferrule (mm²)0.3 ... 1.5 mm²
Clearance, rear0 mm
Clearance, front0 mm
Clearance, sides0 mm
Clearance, top0 mm
Clearance, bottom0 mm

Product details

It offers an adjustable time range of 0.05 to 100 s, making it suitable for applications requiring delayed switching or monitoring of time-dependent processes.

The adjustable time range from 0.05 to 100 s covers both short process interlocks and longer sequence delays, so the same relay can handle a quick conveyor stop or a multi-minute pump cycle. The thermal current rating of 5 A is the continuous current the relay contacts can carry in free air — this is the limit for resistive loads; inductive loads will need derating based on the specific contact ratings at 24 V (1 A), 125 V (0.2 A), and 250 V (0.1 A). The control supply voltage is 42-48 V AC/DC, so it fits standard 48 V control circuits common in industrial panels.

The 22.5 mm width saves rail space — useful when packing multiple monitoring functions into a crowded enclosure.

Frequently asked questions

What are the key ratings of 3RP1555-2AR30?

Adjustable time range 0.05-100 s, thermal current 5 A, control supply 42-48 V AC/DC, relay output.

Where can I buy 3RP1555-2AR30?

Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.

What is the depth of 3RP1555-2AR30?

The depth is 91 mm.

What is the solid wire size range for 3RP1555-2AR30?

The solid wire size range is 24 to 16 AWG.

MPN
3RP1555-2AR30