© 2005 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com STH Page 1
STH\032005\Q1
NEW Series STH
Output to 75A, 600 Vac
High Industrial Performance (HIPpak) Solid-State Relays
FEATURES/BENEFITS
• Zero-cross models for resistive loads
• Low zero-cross turn-on voltage
• Input protection and control LED standard
• IP20 touch-proof flaps optional
• Connectors for power wiring and heat sinks available
• Designed in conformity with EN60947-4-3 (IEC947-4-3)
and EN60950/VDE0805 (Reinforced Insulation)
Part No. Load
Voltage
Load
Current
Control
Voltage
Switch
Type
STH24D12 12-280 Vac 12A 3-32 Vdc Zero Cross
STH24D25 12-280 Vac 25A 3-32 Vdc Zero Cross
STH24D35 12-280 Vac 35A 3-32 Vdc Zero Cross
STH24D50 12-280 Vac 50A 3-32 Vdc Zero Cross
STH48D35 24-600 Vac 35A 3-32 Vdc Zero Cross
STH48D50 24-600 Vac 50A 3-32 Vdc Zero Cross
STH24D75 24-600 Vac 75A 3-32 Vdc Zero Cross
TYPICAL APPLICATION
Figure 1b — STH relays, 35A and above
With IP20 touch-proof flaps
Figure 1a — STH relays, up to 25A
Without IP20 touch-proof flaps
MECHANICAL SPECIFICATION
Figure 2
CONTROL CHARACTERISTICS
Figure 3 — STH relays
STH Page 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2005 TELEDYNE RELAYS
STH\032005\Q1
NEW Series STH
Output to 75A, 600 Vac
High Industrial Performance (HIPpak) Solid-State Relays
ELECTRICAL SPECIFICATIONS
(+25°C ambient temperature unless otherwise specified)
INPUT (CONTROL) SPECIFICATIONS
Min Max Units
Input Current Range 10 13 mA
Must Turn-Off Voltage 2.0 Vdc
Reverse Voltage Protection (R/D) 32 V
Clamping Voltage (R/D) 36 V
Input Immunity (EN61000-4-4) 2 kV
Input Immunity (EN61000-4-5) 2 kV
OUTPUT (LOAD) SPECIFICATIONS
Min Max Units
Peak Voltage
STH24DXX 600 Vpeak
STH48DXX 1200 Vpeak
Load Currrent Range (Resistive)
12 output current .005 12 Arms
25 output current .005 25 Arms
35 output current .005 40 Arms
50 output current .005 60 Arms
75 output current .005 90 Arms
Maximum Surge Current Rating (Non-Repetitive)
12 output current 170 A
25 output current 350 A
35 output current 500 A
50 output current 720 A
75 output current 1200 A
On-State Voltage Drop
Up to 25 output current 0.85 V
Above 35 output current 0.9 V
Output Power Dissipation (Max)
12 output current 0.9x0.85xI + 0.042xI2 W
25 output current 0.9x0.85xI + 0.016xI2 W
35 output current 0.9x0.9xI + 0.015xI2 W
50 output current 0.9x0.9xI + 0.012xI2 W
75 output current 0.9x0.9xI + 0.0045xI2 W
Zero-Cross Window (Typical) ±35 Vac
Off-State Leakage Current 1 mA
Turn-On Time (60 Hz) 8.3 ms
Turn-Off Time (60 Hz) 8.3 ms
Off-State dv/dt 500 V/µs
Maximum di/dt (Non-Repetitive) 50 A/µs
Operating Frequency 0.1 800 Hz
I2t for fuse matching (<10ms)
12 output current 128 A2s
25 output current 600 A2s
35 output current 1250 A2s
50 output current 2500 A2s
75 output current 7200 A2s
Junction-Case Thermal Resistance
12 output current 2.5 °C/W
25 output current 1.7 °C/W
35 output current 0.6 °C/W
50 output current 0.45 °C/W
75 output current 0.4 °C/W
Conducted Immunity Level
IEC/EN61000-4-4
(bursts) 2kV criterion B
IEC/EN61000-4-5
(surge) 2kV criterion A (with external VDR)
© 2005 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com STH Page 3
STH\032005\Q1
NEW Series STH
Output to 75A, 600 Vac
High Industrial Performance (HIPpak) Solid-State Relays
GENERAL SPECIFICATIONS
(+25°C ambient temperature unless otherwise specified)
ENVIRONMENTAL SPECIFICATIONS
Min Max Units
Operating Temperature
Up to 35 output current –55 +80 °C
STH24D50 –40 +100 °C
STH48XXX –40 +80 °C
Storage Temperature
Up to 35 output current –55 +125 °C
STH24D50 –40 +100 °C
STH48XXX –40 +125 °C
Ambient Humidity 40 to 85 %
Input-Output Isolation 4000 Vrms
Output-Case Isolation
Up to 25 output current 2500 Vrms
Above 35 output current 4000 Vrms
Insulation Resistance
@500Vdc 1000 MΩ
Rated Impulse Voltage 4000 V
Protection Level (CEI529) IP20
Vibration (10–55 Hz according to CE168) 1.5 mm
Shock (according to CD168) 30/50 g
Housing Material PA6 UL94VO
Baseplate Aluminum, nickel-plated
SURGE CURRENT
Figure 4e — 75A output current
Figure 4d — 50A output current
Figure 4c — 35A output current
Figure 4b — 25A output current
Figure 4a — 12A output current
STH Page 4 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2005 TELEDYNE RELAYS
STH\032005\Q1
NEW Series STH
Output to 75A, 600 Vac
High Industrial Performance (HIPpak) Solid-State Relays
THERMAL CURVES
Figure 5b — 25A output power
Figure 5c — 35A output power
Figure 5d — 50A output power
Figure 5e — 75A output power
12°C/W corresponds to a relay without heat sink
6°C/W corresponds to a relay mounted on a DIN-rail adaptor (Teledyne P/N DL12)
Figure 5a — 12A output power
© 2005 TELEDYNE RELAYS (800) 284-7007 • www.teledynerelays.com STH Page 5
STH\032005\Q1
NEW Series STH
Output to 75A, 600 Vac
High Industrial Performance (HIPpak) Solid-State Relays
OPTIONAL CONNECTIONS
Directly with wires,
with or without ferrules
With tips
(ring terminals)
CONTROL WIRING
Number of Wires Screwdriver
Type
Recommended
Torque
N.m
1 2
Solid
(no ferrule)
Fine Stranded
(with ferrule)
Solid
(no ferrule)
Fine Stranded
(with ferrule)
AWG18…AWG14 AWG18…AWG14 AWG18…AWG14 AWG18…AWG14 Pozidriv 2 0.8
POWER WIRING
Number of Wires Screwdriver
Type
Recommended
Torque
N.m
1 2
Solid
(no ferrule)
Fine Stranded
(with ferrule)
Solid
(no ferrule)
Fine Stranded
(with ferrule)
AWG16…AWG8 AWG16…AWG10 AWG16…AWG8 AWG16…AWG10 Pozidriv 2 1.2
Power with tips
AWG6
16mm2
AWG4
16mm2
W max = 13mm
AWG0
50mm2
for high current
Options
TF100
Flap reference without mounting
P/N + -16
1 flap (on output) + 1 Teledyne mounting
P/N + -17
2 flaps (input & output) + 2 Teledyne mounting
Fastons: Call us
• Connectors for power wiring and heat sinks available
• Designed in conformity with EN60947-4-3 (IEC947-4-3)
and EN60950/VDE0805 (Reinforced Insulation)
STH Page 6 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2005 TELEDYNE RELAYS
STH\032005\Q1
NEW Series STH
Output to 75A, 600 Vac
High Industrial Performance (HIPpak) Solid-State Relays
Mounting
HIPpak SSRs must be mounted on heat
sinks. A large range of heat sinks is
available. For heat-sink mounting, use
thermal grease or a thermal pad with high
conductibility specified by Teledyne.
2–2.5°C/W
Teledyne P/N FW151
1.1°C/W
Teledyne P/N FW108
0.3°C/W
Teledyne P/N FW031
Thermal Pad
Teledyne P/N –12
Typical Loads
STH relays are designed for AC-51 resistive loads (heating). For other loads, consult our selection guide.
Protection
• To protect the SSR against a short-circuit of the load, use a fuse with a I2t value = 1/2 I2t value specified.
EMC
Immunity:
• Our data sheets list the immunity level of our SSRs according to the main standards for these of products: IEC/EN61000-4-4 and
IEC/EN61000-4-5. You can compare the high immunity level with other products on the market.
Emission:
• Teledyne SSRs are designed in compliance with standards for class A equipment (Industry).
• Use of this product in domestic environments may cause radio interference. In this case the user may be required to employ
additional devices to reduce noise. SSRs are complex devices that must be interconnected with other equipment (loads, cables,
etc.) to form a system. Because the other equipment or interconnections may not be under Teledyne’s control, it shall be the
responsibility of the system integrator to ensure that systems containing SSRs comply with the requirement of any rules and
regulations applicable at the system level.
DIN Rail Adapter
Teledyne P/N DL12
