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SBG22445-25872-25873-41705
Solid-State Relays for Intrinsic Safety up to 5A max.
Models In Stock
- Rapid, Arc-Free Response for Positive, Non-Mechanical Operation
- Solid-State Reliability to Insure Consistent Performance
- Low-Power Switching where a Few Milliamps of Current Control High-Power Loads
- Completely Encapsulated Construction Impervious to Dust, Moisture or Foreign Material
Product Overview
- Current Output 5 A
- Input Control Signal Contact Closure
- Leakage Current 6 mA
- Leakage Current Note Max Output Leakage Current : 6 mA @ 120Vac
- Operating Temperature, Max 48.9 °C
- Operating Temperature, Min -17.8 °C
- Series ID SBG22445-25872-25873-41705
Supported Applications
The Omega SBG Series comprises Solid-State Relays (SSR) and Latching SSRs designed for intrinsic safety in hazardous locations. These devices limit energy at switch terminals to prevent ignition of surrounding gases, enabling the use of non-powered sensor switches in hazardous areas to control higher-power AC loads located in non-hazardous zones. Documented applications include flow, level, and pressure switching systems.
Operating Conditions & Performance
The series is approved for Class I, II, Divisions 1 and 2, Groups A through F (and Group G per family documentation). Operating temperature ranges vary by model: SBG25872A and SBG25873A operate from -17.8 to 48.9°C (0 to 120°F), while the latching configuration SBG41705A operates from 32 to 120°F. The housing material is polysulfone.
Electrical performance specifications include:
- Solid-State Relay (SBG25872A): Line & Load Voltage Range of 100 to 135 Vac, Max Load Current of 5A, Turn-On Sensitivity ≤400 kΩ, and Output Leakage Current Max of 6 mA @ 120 Vac.
- Solid-State Relay (SBG25873A): Line & Load Voltage Range of 200 to 250 Vac, Max Load Current of 5A, Turn-On Sensitivity ≤400 kΩ, and Output Leakage Current Max of 12 mA @ 250 Vac.
- Latching SSR (SBG41705A): Line & Load Voltage Range of 105 to 125 Vac, Steady State Load Current of 0.3A, Turn-On Sensitivity ≤25 kΩ, and Output Leakage Current Max of 3 mA @ 120 Vac.
- Solid-State Relay (SBG22445A): Line & Load Voltage Range of 95 to 135 Vac with an SPST NO switching operation; load current is not specified in the series table for this model.
All AC voltage and current specifications are RMS values unless otherwise stated. The relays feature encapsulated, arc-free construction.
Configuration Options
The SBG Series offers configurable switching operations and latching capabilities to meet specific control needs in hazardous environments:
- Switching Operation: Models are available as SPST NO (Normally Open) or SPST NC (Normally Closed). The SBG41705A is a Latching Solid-State Relay.
- Voltage Ranges: Configurations support 95 to 135 Vac, 100 to 135 Vac, 200 to 250 Vac, and 105 to 125 Vac line/load ranges depending on the model.
- Housing & Connections: Units feature a polysulfone housing with 6-32 threaded electrical terminals. Dimensions for the SBG series are listed as 79 x 57.2 x 66.6 mm (3.125 x 2.25 x 2.625 in).
- Approvals: Models carry UL, FM, and CSA approvals for Class I, II hazardous locations.
Key Product Differences
The series distinguishes between standard Solid-State Relays and Latching configurations. The SBG25872A is a non-latching SSR with SPST NC operation rated at 100 to 135 Vac, while the SBG25873A provides SPST NO operation for higher voltage ranges of 200 to 250 Vac. Both support up to 5A load current and share identical turn-on sensitivity (≤400 kΩ) and operating temperature limits (-17.8 to 48.9°C). The SBG41705A differs as a Latching SSR with SPST NO operation, lower steady-state current capacity (0.3A), higher turn-on resistance threshold (≤25 kΩ), and a narrower operating temperature range of 32 to 120°F.