Series ST Single Output to 75A 600 Vac AC/DC Control Part Numbers Package & Chip Type ST Line Voltage1 24 48 Switch Type2 D ST 24 A ST 48 A Output Current 12 25 40 50 75 25 50 25 Options3 -02 -16 -22 FEATURES/BENEFITS * Industry standard package * Internal MOV (certain models) * Control LED (certain models) * AC or DC control available * Excellent thermal performance * Low zero cross level * High immunity to surges Part Number Example: S48A25-22 NOTES 1) Line Voltage (nominal): 24 = 240 Vac; 48 = 480 Vac 2) Switch Type: D = Zero cross turn-on; A = AC control, Zero cross turn-on 3) Options: -02 = Control LED: Standard on all ST48D Only available on ST24D 12A and 40A (standard) -16 = Internal MOV: Only available on ST24D 25A and 50A -22 = 24 Vac Control DESCRIPTION The Series ST single-phase relays are designed for high-power applications. The design incorporates an SCR or triac output. The Series ST relays utilize optical isolation to protect the control from load transients. Control LED is available on certain models. All Series ST relays are zero crossing. Internal MOV is also available on ST24D 25A and 50A models. MECHANICAL SPECIFICATION 1.06 (27) (.02) .9 (22.8) 1.1 (28) .77 (19.6) O.19 (O4.7) M4 1.87 (47.6) 2~ 1.7 (43.2) 2.29 (58.2) 1~ 3+ .2 (5.1) .26 (7.5) 4- APPLICATIONS * Heating control * Industrial and process control * On/Off controls of AC equipment 1.02 (25.8) 1 (25.4) APPROVALS All models are UL recognized. 1.75 (44.5) TOLERANCE: 01 (0.3) WEIGHT: 3.18 oz. (90g) M3 Figure 1 -- ST relays, dimensions in inches (mm) TYPICAL APPLICATION Line Voltage Line Protection - 4- Line Protection Line Protection - 1 Control + 4- - 1 + 2 * 1-2 can be changed * SSR must be mounted on a heat sink Figure 2a -- ST relays (c) 2001 TELEDYNE RELAYS LED 3+ + 2 1 3+ 2 * 1-2 can be changed * SSR must be mounted on a heat sink * 1-2 can be changed * SSR must be mounted on a heat sink Load 4- Control Control 3+ Line Voltage Line Voltage Load Figure 2b -- ST -02 option relays (800) 284-7007 * www.teledynerelays.com Load Figure 2c -- ST -16 option relays ST 1 ST\072001\Q1 Series ST CONTROL CHARACTERISTICS INPUT (CONTROL) SPECIFICATION Input Type Min Max Units ST24 D 4 30 Vdc A 90 240 Vac/Vdc ST48 D 5 30 Vdc A 17 80 Vac/Vdc ST24D 3 30 mA ST24DXX-02 4 48 mA ST24A 3 8 mA ST48D 5 46 mA 5.6 26 mA Input Current (mA) Control Range Input Current Range 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0 0 D 1 Vdc ST24 A 15 Vac ST48 A 3 Vac 6 8 10 12 14 16 18 20 22 24 26 28 30 Figure 3a -- ST24D relays 50 45 Must Turn-Off Voltage ST 4 Control Voltage (V) 40 Input Current (mA) ST48A25-22 2 35 30 25 20 15 10 5 0 0 2 4 6 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 2 4 2 6 2 8 30 Control Voltage (V) Input Resistance (Typical) Figure 3b -- ST -02 relays D 1000 Ohms ST D-02 600 Ohms ST A 3000 Ohms Reverse Voltage Protection S R/D S A 30 V NA 8 Input Current (mA) ST 6 4 2 0 0 40 60 80 100 120 140 160 180 200 220 240 Control Voltage (V) OUTPUT (LOAD) SPECIFICATION Input Type 20 Min Max Units ST24 12 280 Vrms ST48 24 600 Vrms Figure 3c -- ST24A relays Operating Range Peak Voltage ST24 600 Vpeak ST48 1200 Vpeak Input Current (mA) 30 25 20 15 10 5 0 0 10 20 30 40 50 60 70 80 Control Voltage (V) Zero Cross Window (Typical) S ST 2 D/A Figure 3d -- ST24A25-22 12 Vac SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE (c) 2001 TELEDYNE RELAYS ST\072001\Q1 Series ST OUTPUT (LOAD) SPECIFICATION (continued) Input Type Min Max SURGE CURRENT 150 Units Non-repetitive Load Current Range (Resistive) 12A output current .005 12 Arms 25A output current .005 25 Arms 40A output current .005 40 Arms 50A output current .005 50 Arms 75A output current .005 75 Arms Apeak 100 50 Repetitive with initial Tj = 70C 0 0.01 0.1 1 10 t(s) Figure 4a -- 12A output current 250 Operating Frequency Range 0.1 440 Hz 150 Apeak All relays 200 Non-repetitive 100 50 Non-Repetitive Overload Current Repetitive with initial Tj = 70C 12A output current 120 A 25A output current 240 A 40A output current 350 A 50A output current 550 A 75A output current 1000 A 0 0.01 0.1 t(s) 1 10 Figure 4b -- 25A output current 400 300 Apeak Non-repetitive On-State Voltage Drop 200 100 Repetitive with initial Tj = 70C 12A output current 1.3 V 25A output current 1.2 V 40A output current 1.4 V 50A output current 1.45 V 1.4 V 75A output current 1.4 V 0.01 0.1 1 10 t(s) Figure 4c -- ST24D40-02 600 400 Non-repetitive Apeak ST48D50-02 0 200 Repetitive with initial Tj = 70C Off-State Leakage Current at rated voltage, 60Hz 0 All relays 3 mA 0 0.1 1 10 t(s) Figure 4d -- 50A output current and ST48D40-02 Turn-On Time (60 Hz) D 8.3 ms ST A 24.9 ms 1500 1000 Apeak ST Turn-Off Time (60 Hz) Non-repetitive 500 Repetitive with initial Tj = 70C ST D 8.3 ms ST A 24.9 ms 0 0.01 0.1 1 10 t(s) Figure 4e -- 75A output current Off-State dv/dt All relays 500 V/s Maximum di/dt (Non-Repetitive) All relays (c) 2001 TELEDYNE RELAYS 50 A/s NOTES: 1. Electrical specifications at 25C unless otherwise specified. (800) 284-7007 * www.teledynerelays.com ST 3 ST\072001\Q1 Series ST T case max (C) OUTPUT (LOAD) SPECIFICATION (continued) Input Type Min Max 0.95C/W 40 Units 1.6C/W Full on state I2t for Match Fusing (<8.3ms) 30 A2S 72 Power Dissipation (W) 12A output current 80 2.2C/W 90 25 20 288 A2S ST48 25A output current 265 2 AS 40A output current 612 A2S 5 50A output current 1500 A2S 0 75A output current 5000 A2S ST24 25A output current 70 0.75C/W 1.1C/W 35 100 50% duty cycle 6C/W 15 10 2 0 4 6 8 10 12 14 16 18 20 22 24 26 0 10 20 30 RMS Load Current (A) 40 50 60 70 80 90 100 110 120 Ambient Temperature (C) Figure 5c -- 25A output current ENVIRONMENTAL SPECIFICATION Min Max T case max (C) Units 0.95C/W 60 0.75C/W 55 -40 Operating Temperature 100 -40 Input-Output Isolation C 100 Vrms Output-Case Isolation 12A output current 2500 Vrms 25A output current 2500 Vrms ST24D40-02 2500 Vrms ST48D40-02 3300 Vrms 50A output current 3300 Vrms 75A output current 3300 Vrms 1.1C/W 75 45 C 4000 70 Full on state 50 Power Dissipation (W) Storage Temperature 65 0.55C/W 80 1.6C/W 40 85 90 35 2.2C/W 30 95 50% duty cycle 100 25 20 6C/W 15 10 5 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0 10 20 30 RMS Load Current (A) 40 50 60 70 80 90 100 110 120 Ambient Temperature (C) Figure 5d -- ST24D40-02 T case max (C) 0.55C/W 0.75C/W 100 0.3C/W 70 75 90 0.95C/W THERMAL CHARACTERISTICS 75 1.6C/W 2.2C/W 1.1C/W 80 18 4C/W 16 85 Full on state 90 14 Power Dissipation (W) Power Dissipation (W) T case max (C) 20 6C/W 12 80 80 10 85 70 Full on state 1.1C/W 90 60 95 1.6C/W 50 100 40 50% duty cycle 2.2C/W 30 95 20 100 10 6C/W 0 8 50% duty cycle 0 5 10 15 6 20 25 30 35 40 45 50 55 60 0 10 20 RMS Load Current (A) 30 40 50 60 70 80 90 100 110 120 Ambient Temperature (C) 4 Figure 5e-- 50A output current and ST48D40-02 2 0 0 1 2 3 4 5 6 7 8 9 10 11 12 0 10 20 RMS Load Current (A) 30 40 50 60 70 80 90 100 110 120 T case max (C) Ambient Temperature (C) Figure 5a -- 12A output current 130 0.55C/W 70 0.3C/W 120 T case max (C) Full on state 70 75 120 80 0.75C/W 110 Full on state 100 85 0.95C/W 90 90 80 95 1.1C/W 70 100 1.6C/W 60 50% duty cycle 50 Power Dissipation (W) 90 130 Power Dissipation (W) 0.75C/W 100 0.3C/W 140 75 110 80 40 85 1.1C/W 90 95 70 50% duty cycle 60 50 1.6C/W 100 2.2C/W 40 30 6C/W 20 2. 2C/W 80 0.95C/W 10 30 0 0 20 6C/W 10 10 20 30 40 50 60 70 80 90 RMS Load Current (A) 100 110 0 10 20 30 40 50 60 70 80 90 0 RMS Load Current (A) 0 0 10 20 30 40 50 60 70 80 90 100 110 120 10 20 30 40 50 60 70 80 90 100 110 120 Ambient Temperature (C) Figure 5f -- 75A output current Ambient Temperature (C) Figure 5b -- ST48D12-02 ST 4 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE (c) 2001 TELEDYNE RELAYS ST\072001\Q1