Full featured universal miniature relays Designed with environment taken into consideration Two terminal styles: plug-in and PCB mount Non-polarized LED indicator available on plug-in relays No internal wires, lead-free construction Cadmium-free contacts Mechanical flag indicator available on plug-in relays Manual latching lever with color coding for AC or DC coil Snap-on yellow marking plate; optional marking plates are available in four other colors Maximum contact ratings: A (RU2), A (RU4), A (RU42) UL, CSA, c-ul, EN compliant Standard Mark Approval Organization / File No. UL8 CSA C22.2 No. 4 CSA C22.2 No. 4 UL/c-UL File No. E04 CSA File No. LR44 (CSA mark is printed on bifurcated contact types only) EN8- TÜV Product Service Self declaration (EC Low Directive) With Latching Lever Mechanical Indicator The contact position can be confirmed through the file small windows. Standard yellow marking plate is easily replaced with optional marking plates in four colors for easy identification of relays. Lever in the Latched Position Latching Lever Using the latching lever, operation can be checked without energizing the coil. The latching lever is color coded for AC and DC coils. AC coil: Orange DC coil: Green In Normal Operation Non-polarized green LED indicator is standard provision for plug-in terminal, latching lever types Note: Turn off the power to the relay coil when using the latching lever. After checking the operation, return the latching lever in the normal position. Without Latching Lever Mechanical Indicator Non-polarized green LED indicator is standard provision for plug-in terminal types, except for simple types. AC/DC For identification of AC or DC coils. AC coil: Yellow DC coil: Blue AC Coil DC Coil Relay Coil Tape Colors Coil Rated Tape Color 24V AC White 0 to V AC Clear to V AC Blue 0 to 2V AC Black 2 to 2V AC Red 24V DC Green V DC 2V DC 48V DC marking on yellow tape V DC 4 (0/02/7)
Types Single Contact Type Type No. Termination Latching Lever Type Coil Code DPDT 4PDT A24, A0, A, A0, A2 Standard RU2S- RU4S- D, D2, D24, D48, D With RC (AC coil only) RU2S-R- RU4S-R- A0, A, A0, A2 With Latching Lever RU2S-D- RU4S-D- D, D2, D24, D48, D Plug-in Terminal (Note ) Without Latching Lever RU2S-D- RU4S-D- D24 Standard RU2S-C- RU4S-C- A24, A0, A, A0, A2 D, D2, D24, D48, D With RC (AC coil only) RU2S-CR- RU4S-CR- A0, A, A0, A2 RU2S-CD- RU4S-CD- D, D2, D24, D48, D RU2S-CD- RU4S-CD- D24 Simple (Note 2) RU2S-NF- RU4S-NF- A24, A0, A, A0, A2 PCB Terminal Without Latching Lever Simple (Note 2) RU2V-NF- RU4V-NF- D, D2, D24, D48, D Bifurcated Contact Type Type No. Termination Latching Lever Type Coil Code 4PDT A24, A0, A, A0, A2 Standard RU42S- D, D2, D24, D48, D0, D With RC (AC coil only) RU42S-R- A0, A, A0, A2 With Latching Lever RU42S-D- D, D2, D24, D48, D0, D Plug-in Terminal (Note ) Without Latching Lever RU42S-D- D24 Standard RU42S-C- A24, A0, A, A0, A2 D, D2, D24, D48, D0, D With RC (AC coil only) RU42S-CR- A0, A, A0, A2 RU42S-CD- D, D2, D24, D48, D0, D RU42S-CD- D24 Simple (Note 2) RU42S-NF- A24, A0, A, A0, A2 PCB Terminal Without Latching Lever Simple (Note 2) RU42V-NF- D, D2, D24, D48, D0, D Note : Plug-in terminal types, except for simple types, have an LED indicator and a mechanical indicator as standard. Note 2: Simple types do not have an LED indicator, a mechanical indicator, and a latching lever. Ordering Information Specify a coil voltage code in place of in the Type No. Coil Code A24 A0 A A0 A2 D D2 D24 D48 D0 D Coil Rating 24V AC 0-V AC -V AC 0-2V AC 2-2V AC V DC 2V DC 24V DC 48V DC 0V DC V DC Accessory Name Type No. Ordering Type No. Color Code Package Quantity RU9Z-P RU9Z-P PN A (orange), G, S (blue), W (white), Y (yellow) Note: Specify a color code in place of the Type No. When ordering, specify the Ordering Type No. The marking plate can be removed from the relay by inserting a flat screwdriver under the marking plate. (0/02/7)
Coil Ratings Rated (V) AC (/0 Hz) DC Coil Code Rated Current (ma) ±% (at C) Coil Resistance (Ω) ±% (at C) Hz 0 Hz 24 A24 49. 42. 4 0- A0 9.2-.0 7.8-9.0, - A 8.4-.0 7.-8.2 4, 0-2 A0 4.-. 4.0-4. 4,0 2-2 A2 4.2-.0.-4.2 8,2 D 2 D2 0 24 D24 44.7 0 48 D48 8 2, 0 D0 9.7,000 D 8.9 2,0 Note : The rated current includes the current draw by the LED indicator. Note 2: Rated voltage 0V DC is available for the bifurcated contact type only. Contact Ratings Contact DPDT 4PDT 4PDT bifurcated Continuous Current A A A Note : On 4PDT relays, the maximum allowable total current of neighboring two poles is A. At the rated load, make sure that the total current of neighboring two poles does not exceed A (A + A = A). Note 2: Inductive load for the rated load cos ø = 0., UL and c-ul Ratings Resistive General Use Horse Power Rating RU2 RU4 RU42 RU2 RU4 RU42 RU2 RU4 RU42 A A A /HP V DC A A A CSA Ratings Resistive RU42 A V DC A Allowable Contact Power Resistive VA AC 0W DC 0VA AC W DC 7VA AC W DC Inductive 2VA AC W DC 00VA AC W DC 0VA AC 4W DC TÜV Ratings Resistive Inductive RU2 RU4 RU42 RU2 RU4 RU42 A A A A 0.8A 0.8A V DC A A A A.A.A Surge Suppressor Ratings Type AC Coil With RC DC Coil With Diode (V) Rated Res. Ind. 2 AC A A DC A A 2 AC A 0.8A DC A.A 2 AC A 0.8A DC A.A Ratings RC series circuit R: kω, C: 0.0 µf Diode reverse voltage: 00V Diode forward current: A Operating Characteristics (against rated values at C) Maximum Continuous Applied Specifications Minimum Pickup Dropout % % maximum % minimum % % maximum % minimum Type (Contact) RU2 (DPDT) RU4 (4PDT) RU42 (4PDT) Silver Silver-nickel Contact Material Silver alloy (gold clad) (gold clad) Contact mω maximum Resistance Minimum Applicable 2 Operate Time ms maximum Release Time ms maximum Power Consumption Insulation Resistance Dielectric Strength Operating Frequency Vibration Resistance Shock Resistance 24V DC, ma V DC, ma V DC, 0. ma (reference value) AC:. to.4va ( Hz), 0.9 to.2va (0 Hz) DC: 0.9 to.0w 0 MΩ minimum (0V DC megger) Between contact and coil: V AC, minute Between contacts of different poles: V AC, 00V AC, minute minute Between contacts of the same pole: 00V AC, minute Electrical: 0 operations/h maximum Mechanical: 8,000 operations/h maximum Damage limits: to Hz, amplitude mm Operating extremes: to Hz, amplitude mm Damage limits: 00 m/s 2 Operating extremes: m/s 2 Mechanical Life AC:,000,000 operations DC: 0,000,000 operations Electrical Life 4 See table below Operating Simple types: Temperature Others: Operating Humidity to 8% RH (no condensation) Weight Approx. g,000,000 operations to + C (no freezing) to +0 C (no freezing) Note: Above values are initial values. : Measured using V DC, A voltage drop method 2: Measured at operating frequency of operations/min (failure rate level P, reference value) : Measured at the rated voltage (at C), excluding contact bouncing; Release time of AC relays with RC: 2 ms maximum Release time of DC relays with diode: ms maximum 4: Contact and Electrical Life (at ambient temperature C) Type Resistive Inductive (cos ø = 0., ) Electrical Life (operations minimum) A A 0,000 A 2.A 0,000 RU2 A A 0,000 V DC A 2.A 0,000 V DC 0.A 0.4A 0,000 2.A,000 A 0.8A 0,000 RU4 V DC A 2.7A,000 A.A 0,000 V DC 0.A 0.A,000 0.A 0.8A 0,000 A 0.8A 0,000 RU42 V DC A.A 0,000 V DC 0.44A 0.22A 0,000 : Measured at the rated voltage. Simple types include plug-in terminal simple types and all PCB terminal types. (0/02/7)
RU2 (DPDT Contact) Plug-in Terminal Type PCB Terminal Type LED indicator, mechanical flag indicator, and marking plate are standard provisions, except on simple types. Available with or without a manual latching lever Simple types have a marking plate. Marking plate is a standard provision. Not provided with an LED indicator, mechanical flag indicator, and manual latching lever. Photo: RU2S-A0 Photo: RU2V-NF-A0 Dimensions RU2S RU2S-C/RU2S-NF RU2V Mechanical Indicator Window (yellow) Mechanical Indicator Window (RU2S-C only) (yellow) (yellow) Latching Lever AC: Orange DC: Green (RU2S-C only).0.0.0.2.4 2. 0.8 2. 2.0 4 8 9 2 4 ø.2 2.2 Hole Mounting Hole Layout 7.0 8-ø Holes.2.4 2. 4.0 2.0 4 8 9 2 4 ø.2 2.2 Hole 2.0 Marking plate removal slot is provided only on one side. Insert a flat screwdriver into the slot to remove the marking plate. 4..4 2.7 All dimensions in mm. Internal Connection (Bottom View) RU2S- Standard RU2S- R With RC RU2S- D With Diode RU2S- D With Diode ()2 ()2 Reverse Polarity Coil ()2 ()4 (9) (2)4 ()2 ()4 ()4 (9) (2)4 (9) (2)4 ()4 (9) (2)4 24V AC/DC or less 24V DC or less 24V DC ()2 ()2 ()4 ()4 RU2S-NF- /RU2V-NF- (9) (2)4 (9) (2)4 ()2 ()4 Over 24V AC/DC Blank or C comes in place of to represent types with or without a latching lever. Over 24V DC (9) (2)4 (0/02/7) 7
Electrical Life Curves RU2 (Resistive ) 00 V DC V DC RU2 (Inductive ) 00 /V DC V DC (,000 operations) 0 (,000 operations) 0 AC: cos ø = 0. DC: 0. 0. Maximum Switching Current RU2 (cos ø = 0.) 0. 0 2 0 (V) Ambient Temperature vs. Temperature Rise Curves RU2 (AC Coil, Hz) RU2 (AC Coil, 0 Hz) RU2 (DC Coil) 0 0 0 0 A 2 poles A 2 poles 0 A 2 poles A 2 poles 0 A 2 poles A 2 poles 0 0 0 0 0 0 The above temperature rise curves show the characteristics when 0% the rated coil voltage is applied. The heat resistance of the coil is C. The slant dashed line indicates the allowable temperature rise for the coil at different ambient temperatures. 8 (0/02/7)
RU4 (4PDT Contact) Plug-in Terminal Type PCB Terminal Type LED indicator, mechanical flag indicator, and marking plate are standard provisions, except on simple types. Available with or without a manual latching lever Simple types have a marking plate. Marking plate is a standard provision. Not provided with an LED indicator, mechanical flag indicator, and manual latching lever. (RU4) (RU42) Photo: RU42S-A0 Photo: RU4V-NF-D24 Dimensions RU4S/RU42S RU4S-C/RU4S-NF RU42S-C/RU42S-NF RU4V/RU42V (yellow).0 4.0 0.8 2. -4.4 2.0 Mounting Hole Layout 7.0.2 9 2 7 4 8 Mechanical Indicator Window (yellow) Latching Lever AC: Orange DC: Green (yellow) (RU4S-C/ RU42S-C only).0.0 2. 2 4.4 ø.2 2.2 Hole.4 2. 2.0 ø.2 2.2 Hole 2.0 9 2 7 4 8 Mechanical Indicator Window (RU4S-C/RU42S-C only) 2 4 Marking plate removal slot is provided only on one side. Insert a flat screwdriver into the slot to remove the marking plate. 4-ø Holes Internal Connection (Bottom View) RU4S- /RU42S- Standard ()2 (2)22 ()2 ()4 ()24 (7)4 (9) ()2 () (2)4 24V AC/DC or less ()2 (2)22 ()2 ()4 ()24 (7)4 (9) ()2 () (2)4 RU4S- R/RU42S- R With RC ()2 (2)22 ()2 ()4 ()24 (7)4 (9) ()2 () (2)4 RU4S- D/RU42S- D With Diode ()2 (2)22 ()2 ()4 ()24 (7)4 (9) ()2 () (2)4 24V DC or less ()2 (2)22 ()2 ()4 ()24 (7)4 (9) ()2 () (2)4 4.4.4 4. 2.7 All dimensions in mm. RU4S- D/RU42S- D With Diode Reverse Polarity Coil ()2 (2)22 ()2 ()4 ()24 (7)4 (9) ()2 () (2)4 24V DC RU4S-NF- /RU4V-NF- RU42S-NF- /RU42V-NF- ()2 (2)22 ()2 Over 24V AC/DC Blank or C comes in place of to represent types with or without a latching lever. Over 24V DC ()4 ()24 (7)4 (9) ()2 () (2)4 (0/02/7) 9
Electrical Life Curves RU4 (Resistive ) 00 V DC V DC RU4 (Inductive ) 00 V DC V DC (,000 operations) 0 (,000 operations) 0 AC: cos ø = 0. DC: 0. 0. RU42 (Resistive ) V DC V DC RU42 (Inductive ) V DC V DC (,000 operations) 0 (,000 operations) 0 AC: cos ø = 0. DC: 0.02 0. 0.02 0. Maximum Switching Current RU4 (Rated ) RU4 (Maximum ) RU42 (cos ø = 0.) (cos ø = 0.) (cos ø = 0.) 0. 0. 0. 0 2 0 (V) 0 2 0 (V) 0 2 0 (V) Ambient Temperature vs. Temperature Rise Curves RU4/RU42 (AC Coil, Hz) RU4/RU42 (AC Coil, 0 Hz) RU4/RU42 (DC Coil) 0 0 0 0 A 4 poles A 2 poles 0 A 4 poles A 2 poles 0 A 4 poles A 2 poles 0 0 0 0 0 0 The above temperature rise curves show the characteristics when 0% the rated coil voltage is applied. A 2 poles is for the RU4 types only. The heat resistance of the coil is C. The slant dashed line indicates the allowable temperature rise for the coil at different ambient temperatures. (0/02/7)