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Series-SSR
SSR Solid State Relays - SPST, Shock-Resistant, 10A Load Capacity
Series-SSR
From
C$
290.27
Product Overview
- Electrical Connection N/A
- Electrical Output N/A
- Leakage Current 12 mA
- Materials Polysulfone
- Operating Temperature, Max 120 °F
- Operating Temperature, Min 0 °F
- Series ID Series-SSR
- Switch Rating N/A
- Switch Type SPST NO
- Switching Current 20 mA
- Voltage Loss 2 Vac
- Weight 9 oz
Supported Applications
The Dwyer Series SSR Solid State Relays amplify the current handling capability of a variety of sensors to control higher power loads. The series is designed for low-current 'start-stop' or 'on-off' switching in industrial motor and liquid level control systems.
Operating Conditions & Performance
The Series SSR relays operate within an ambient temperature range of 0°F to 120°F (-17.8°C to 48.9°C) per the family manual, or 0 to 120°F (-18 to 49°C) as listed in series specifications. The units are totally encapsulated and described as impervious to shock or vibration.
Performance varies by model:
- SSR-25: Operating range of 24 to 260 VAC with a maximum load of 5 Amps AC. Surge current ratings are 30 A at .010 Sec, 20 A at 1.0 Sec, and 10 A at 10 Sec.
- SSR-210: Operating range of 24 to 260 VAC with a maximum load of 10 Amps AC. Surge current ratings are 50 A at .010 Sec, 30 A at 1.0 Sec, and 15 A at 10 Sec.
- SSR-312: Operating range of 100 to 130 VAC with a maximum load of 5 Amps AC.
The SSR-2 family specifications list an operating and load voltage range of 24 to 260 VAC, a voltage loss of 2 VAC, and a leakage current through the load terminal of 12 mA @ 240 VAC. The maximum allowable resistance in the sensor circuit to turn "ON" is 4 kΩ@ Nom. Volt., with a maximum sensor current of 20 mA.
Configuration Options
The series features SPST, normally open (N.O.) switch operation and includes models designed for both current amplifying and on/off control applications. Units hold their operational state up to a 1/2 second during momentary power loss to cut nuisance shutdowns.
- Housing Material: Polysulfone.
- Electrical Connection: Brass Terminals (SSR-2 family) or 6-32 THREAD connections depending on the specific model configuration.
- Dimensions:
- Model SSR-25: Height 1 [25.4], Width 2-3/4 [69.8] MTNG. CTRS., Depth 2-3/8 [60.3]. Mounting holes are 0.7/32 [5.5] (2 HOLES).
- Models SSR-210, -312, -324: Height 1-3/8 [34.9], Width 2-3/4 [69.8] MTNG. CTRS., Depth 2-3/8 [60.3]. Mounting holes are 0.7/32 [5.5] (2 HOLES).
- Weight: 9 oz (255 g) for the series.
Key Product Differences
The Series SSR includes distinct models tailored to different voltage and load requirements:
- SSR-25 and SSR-210: Designed as current amplifying relays. The SSR-25 supports a 5 Amp AC load, while the SSR-210 supports a 10 Amp AC load; both operate from 24 to 260 VAC.
- SSR-312 and SSR-324: Specifically designed for low current 'start-stop' or 'on-off' switching. The SSR-312 operates in the 100 to 130 VAC range with a 5 Amp maximum load.
Installation notes indicate that wires connecting external sensor switches should not be placed in raceways or conduits containing high voltage lines, as induced voltages may trigger the low-power solid-state triac. Additionally, mechanical holding or latching contacts (contactors) may cause some loads to latch under transient conditions.