Current and Voltage Controls 1-Phase AC/DC Current Control Types SJ 105, SJ 155 * Current control relay with absolute scale and internal shunt * Measuring ranges: SJ 105: 0.2 - 5 ADC SJ 155: 0.2 - 5 AAC * Knob-adjustable current level * Latching at set level possible * Output: 10 A SPDT relay * Plug-in type module * S-housing * LED-indication for output ON * AC or DC power supply Product Description Ordering Key 1-phase AC or DC plug-in current metering relay. Often used in applications where small loads have to be moni- Housing Function Output Type Power supply Measuring range tored. Owing to the built-in latch function, the ON-position of the output relay can be maintained. SJ 105 024 1mA Type Selection Plug Output DC-measuring Circular SPDT AC-measuring Circular SPDT Measuring ranges Supply: 24 VAC Supply: 115 VAC Supply: 230 VAC Supply: 24 VDC 0.2 - 1 mADC 4 - 20 mADC 20 - 100 mADC 100 - 500 mADC 0.4 - 2 ADC 1 - 5 ADC SJ 105 024 1mA SJ 105 024 20mA SJ 105 024 100mA SJ 105 024 500mA SJ 105 024 2A SJ 105 024 5A SJ 105 115 1mA SJ 105 115 20mA SJ 105 115 100mA SJ 105 115 500mA SJ 105 115 2A SJ 105 115 5A SJ 105 230 1mA SJ 105 230 20mA SJ 105 230 100mA SJ 105 230 500mA SJ 105 230 2A SJ 105 230 5A SJ 105 724 1mA SJ 105 724 20mA SJ 105 724 100mA SJ 105 724 500mA SJ 105 724 2A SJ 105 724 5A 0.2 - 1 mAAC 4 - 20 mAAC 20 - 100 mAAC 100 - 500 mAAC 0.4 - 2 AAC 1 - 5 AAC SJ 155 024 1mA SJ 155 024 20mA SJ 155 024 100mA SJ 155 024 500mA SJ 155 024 2A SJ 155 024 5A SJ 155 115 1mA SJ 155 115 20mA SJ 155 115 100mA SJ 155 115 500mA SJ 155 115 2A SJ 155 115 5A SJ 155 230 1mA SJ 155 230 20mA SJ 155 230 100mA SJ 155 230 500mA SJ 155 230 2A SJ 155 230 5A SJ 155 724 1mA SJ 155 724 20mA SJ 155 724 100mA SJ 155 724 500mA SJ 155 724 2A SJ 155 724 5A Input Specifications Input Pin 5 & 7 Measuring ranges Types (Max. cont.) SJ 1.5 ... 1mA SJ 1.5 ... 20mA SJ 1.5 ... 100mA SJ 1.5 ... 500mA SJ 1.5 ... 2A SJ 1.5 ... 5A (10mA) (100mA) (500mA) (2A) (6A) (10A) Max. overload current 2 A: 5 A: Latching Output Specifications AC/DC current, pin 5 pos. at DC Ranges Internal resist. 0.2 - 1 mA 100 4 - 20 mA 5.1 20 - 100 mA 1 100 - 500 mA 0.2 0.4 - 2 A 0.05 1-5A 0.02 SJ 155: The ranges equal rms-value of a sinusoidal current 8 x I nom (30 sec.) 40 A (10 sec.) 25 A (30 sec.) Interconnect pins 8 & 9 latching at set level Specifications are subject to change without notice Output Rated insulation voltage Contact ratings (AgCdO) Resistive loads AC 1 DC 1 or Small inductive loads AC 15 DC 13 Mechanical life Electrical life AC 1 SPDT relay 250 VAC (rms) (cont./elect.) (micro gap) 10 A/250 VAC (2500 VA) 1 A/250 VDC (250 W) 10 A/25 VDC (250 W) 2.5 A/230 VAC 5 A/24 VDC 30 x 106 operations 2.5 x 105 operations (at max. load) 7200 operations/h Operating frequency Dielectric strength 2 kVAC (rms) (cont./elect.) Dielectric voltage Rated impulse withstand volt. 4 kV (1.2/50 s) (cont./elect.) (IEC 60664) 1 SJ 105, SJ 155 Supply Specifications General Specifications Power supply AC types Rated operational voltage Through pins 2 & 10 024 115 230 Voltage interruption Dielectric voltage Rated impulse withstand volt. Reaction time Overvoltage cat. III (IEC 60664) (IEC 60038) 24 VAC 15%, 45 to 65 Hz 115 VAC 15%, 45 to 65 Hz 230 VAC 15%, 45 to 65 Hz 40 ms 2 kVAC (rms) (supply/elect.) 4 kV (1.2/50 s) (line/neutral, line/line), no direct connection to electronics Overvoltage cat. III (IEC 60664) Power supply DC types Rated operational voltage (IEC 60038) Through pins 2 & 10 724 24 VDC 15% Dielectric voltage None (supply/elect.) Rated impulse withstand volt. 800 V (1.2/50 s) Rated operational power AC supply 2.5 VA DC supply 1.5 W Relay operates: = 22 ms Relay releases: = 2.2 s, worst case reaction time may be up to 5 x Accuracy Input 0 to +10% on max. Min. actual level min. set level Indication for Output ON Environment Degree of protection Pollution degree Operating temperature Storage temperature Weight AC supply DC supply Approvals LED, yellow (IEC 60947-1) IP 20 B (IEC 60529) 2 (IEC 60664) -20 to +50C (-4 to +122F) -50 to +85C (-58 to +185F) 200 g 125 g UL, CSA Mode of Operation SJ 105 Example 1 DC current metering The relay operates when the measured current value exceeds set point. The relay releases when the current drops 10% below set point (see hysteresis) or when supply voltage is interrupted. ped at least 10% below set point (see hysteresis) or by interrupting supply voltage. Example 2 DC current metering - latching The SJ 105 operates when the measured current value exceeds set point. The relay releases when removing latch between pins 8 and 9 provided that the current has drop- Example 1 AC current metering The relay operates when the measured current value exceeds set point. The relay releases when the current drops 10% below set point (see hysteresis) or when supply voltage is interrupted. SJ 155 The relay measures the average of a sinusoidal current. The set point, calibrated in rms-value, is set on the builtin potentiometer. Example 2 AC current metering - latching The SJ 155 operates when the measured current value exceeds set point. The relay releases when removing latch between pins 8 and 9 provided that the current has dropped at least 10% below set point (see hysteresis) or by interrupting supply voltage. current is to pass through this internal connection. Note: At DC supply: Do not connect pin 7 with pin 10 as these pins are internally connected by a resistor of 3.9 k. No Wiring Diagrams Example 1 Load Example 2 Load Latch Power supply SJ 105, SJ 155 2 Power supply SJ 105, SJ 155 PE = Pin 7 Specifications are subject to change without notice SJ 105, SJ 155 Range Setting Range setting Relay set point adjustable on absolute scale. Hysteresis Approx. 10%. The hysteresis may be exten- Accessories ded to 75% by connecting a resistor between pins 8 and 9. Resistor limits are 470 k and 3 k (0.25 W). The hysteresis is increased by decreasing resistance. Sockets Hold down spring Mounting rack Socket covers Front mounting bezel Potentiometer lock S 411 HF SM 13 BB 4 FRS 2 PL 1 For further information refer to "Accessories". Operation Diagrams Example 1 Example 2 Power supply Power supply Latching Set value Set value Input voltage pins 5 & 7 Input voltage pins 5 & 7 Relay ON Relay ON Specifications are subject to change without notice 3