Electronic timer

Electronic timer Type 3RP s. 2 Introduction Siemens offers 3RP15 electronic timers which meet the various ... pulse break contact, pulse shaping and a...

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Electronic timer Type 3RP www.siemens.co.in

Answers for industry.

Introduction Siemens offers 3RP15 electronic timers which meet the various control timing requirements of industry. These timers comply with IEC 60 947-5-1 IEC 61 000-6-2/EN 50 081-1 (EMC) Carry CE marking

• Sleek 22.5mm wide housing and compact design saves panel space. Thus 3RP timers ensure unmatched reliability and offer excellent ‘Value for Money’

Note • Changing the time setting ranges and the functions will only be effective when carried out in de-energised (OFF) state.


• Start input B1 or B3 must only be triggered when the supply voltage is applied.

ON delay:

Control supply voltage options Discrete voltages Universal voltage of 24 to 240V ac/dc

Time ranges - 0.5 -10 sec, 5 - 100 sec Universal time range of 0.05 sec to 100Hr

• OFF delay timers are with aux. voltage (refer wiring diagram fig.1). Same potential must be applied to A1 and B1, or A3 and B3.

OFF delay:

Control supply voltage options Discrete voltages

• With the two-voltage version, only one voltage range must be connected.

Time ranges - 0.5 - 10 sec, 5 - 100 sec

Star Delta:

Control supply voltage options Discrete voltages Universal voltages of 200 - 240V ac/dc, 380 ‑ 440Vac/dc and 230 - 400V ac/dc

• The activation of loads parallel to the start input is not permissible when using AC control voltage (see diagram below).

Time ranges - 1- 20 Sec, 3 - 60 Sec with 50 msec changeover delay

Multifunction: 1 timer 8 functions (ON delay, OFF delay, ON+OFF delay, Cyclic, Make Contact, Break contact, Pulse shaping, Additive ON delay)

Control supply voltage options Universal voltage of 24 - 240V ac/dc

Time ranges - Universal time range - 0.05 sec to 100Hrs




3RP15 electronic timers can be used for all delayed switching applications in control, starting and protection circuits. They are ideal for use in application like machine tools, material handling, process control and motor control.

3RP electronic timers are suitable for snap mounting onto 35 mm standard DIN rails. Accessory for mounting 3RP timers on base plate is available and can be ordered separately.

With multifunction timer, you can configure the same timer as per your application need. Thus one timer is suited for many applications (refer timing diagram)

Benefits • Reduction in inventory cost (upto 80%) due to universal time and universal voltage ON delay timers.


LED to indicate time relay energised

• High accuracy (<±1% repeat accuracy & <±5% setting accuracy) and switching reliability.

LED to indicate relay switched

• High mechanical endurance of 30x106 operations ensures trouble free operation

Dial for selecting time setting range

• Integral surge suppression – No voltage surges during switching makes them ideal for use with electronic circuits

Function selector switch (Multifunction)

• Clear visual status indication through 2 separate LEDs both for actuation of control supply and the change over status.

Device designation label

• High level of Electromagnetic compatibility (EMC) i.e. maximum immunity to interferences. • No more failures of contactors in Star Delta starting during changeover


Dial for selecting operating time Display window for selected time setting range Display window for set function

Technical data Type

3RP15 05 3RP15 31 3RP15 33

Rated insulation voltage (Pollution degree 3) Overvoltage category III acc. to DIN VDE 0110

3RP15 11 3RP15 13 3RP15 25

3RP15 74/76



°C °C

-25 to +60 -40 to +80

operating cycles

30 x 10


3 1 0.2 0.1

Control voltage tolerance

V Hz

0.85 - 1.1 x Us for AC 50/60Hz; 0.8 - 1.25 x Us for 24VDC 0.95 to 1.05 x rated frequency

Operating frequency at rated current Ie, 230 V AC



Permissible ambient temperature

during operation during storage

Mechanical endurance Rated operational currents Ie AC-15 at 230 V AC, 50 Hz DC-13 at 24 V DC-13 at 24 V DC-13 at 24 V

Setting accuracy referred to upper limit of scale Repeat accuracy

< ±5% < ±1%

Recovery time Minimum ON period

ms ms

Degree of protection

cover terminals

150 35


150 -

IP 40 IP 20

Rated power Power consumption at 230 V AC, 50 Hz


2 6

Rated control fuse - Utilization category gL/gG



Permissible mounting position Conductor cross-sections – main / auxiliary conductors


any solid finely stranded with end sleeve solid or stranded AWG conductors terminal screw tightening torque

mm2 mm2 AWG Nm

1x(0.5-4), 2x(0.5-2.5) 1x(0.5-2.5), 2x(0.5-1.5) 2x(20-14) M3 0.8 to 1.2

Timing Diagrams

ON delay with 2 C/O contacts


OFF-delay With auxiliary voltage

ON + OFF delay (t = tON = tOFF)

Flashing (Cyclic) (Pulse interval 1:1)

Make Contact

Break contact

Pulse shaping

Additive ON-delay

Star delta


Selection and ordering data Time range

Wiring diagrams Auxiliary contacts

Control Voltage


AC (50/60Hz)


0.5 - 10 sec

24/100-127 24/200-240

24 24

1 C/O 1 C/O

3RP15 11-1AQ30 8K 3RP15 11-1AP30 8K

5 - 100 sec

24/100-127 24/200-240

24 24

1 C/O 1 C/O

3RP15 13-1AQ30 8K 3RP15 13-1AP30 8K

0.05sec to 100Hrs (15 time setting ranges)

24/100-127 24/200-240

24 24

1 C/O 1 C/O

3RP15 25-1AQ30 8K 3RP15 25-1AP30 8K

24 - 240


3RP15 25-1BW30 8K

ON Delay timers

24 - 240


On delay with 2CO contacts

OFF Dealy timers 0.5 - 10 sec

24/100-127 24/200-240

24 24

1 C/O 1 C/O

3RP15 31-1AQ30 8K 3RP15 31-1AP30 8K

5 - 100 sec

24/100-127 24/200-240

24 24

1 C/O 1 C/O

3RP15 33-1AQ30 8K 3RP15 33-1AP30 8K

24 - 240

1 C/O

3RP15 05-1AW30 8K

OFF-delay With auxiliary voltage

Multifunction timer 1) 0.05sec to 100Hrs (15 time setting ranges)

24 - 240

Label set - 8 functions

On delay, Off delay, On+Off delay, flashing, pulse make contact, pulse break contact, pulse shaping and additive ON delay

3RP19 01-0A 8K

1 - 20 sec

200-240/380-440V AC

1NO inst. & 1NO delayed

3RP15 74-1NM20 8K

3 - 60 sec

24/100-127 24/200-240

1NO inst. & 1NO delayed

3RP15 76-1NQ30 8K 3RP15 76-1NP30 8K

Star Delta timers

24 24

200-240/380-440V AC

3RP15 76-1NM20 8K

230-400V AC

3RP15 76-1NP20 8K

Star-delta timing relay

Star-delta timing relay

Accessory 3RP19 03 8K

Push-in lug (for screw mounting on a base plate) for 3RP15

Multifunction relay

1) Please order label set alongwith multifunction timer (one per timer)

Dimensions 3RP15

1 C/O contact without auxiliary voltage and star delta timer

1 and 2 C/O contacts, with auxiliary voltage

1) Push-in lug (for screw mounting on a base plate) for 3RP15

Siemens Ltd. Industry Sector Control Products R&D Technology Centre Kalwa Works, Thane Belapur Road, Thane - 400 601 Fax: +91 22 33265627 E-mail: [email protected] www.siemens.co.in

Order No.: 104846459 I-IA-CECP-005 (This replaces SGR-01-111-014)

Customer Care Toll free no. 1800 220 987 / 1800 209 0987 Email: [email protected]

Product upgradation is a continuous process. Hence, data in this datasheet is subject to change without prior notice. For the latest information, please get in touch with our Sales Offices.