Our Electromagnetic Power Relay is engineered for high switching capacity and precision, providing superior reliability in various industrial and commercial applications. Designed to handle up to 20A standard , this relay is perfect for heavy-duty operations in automation systems, power distribution, and industrial machinery.
Key Features:
High Switching Capacity: Handles up to 20A standard, ensuring dependable operation in high-load environments.
Contact Forms: Available in 2C (DPDT) and 3C (3PDT) configurations to suit diverse application needs.
Visual Indicators: Features a flag indicator to clearly show relay status, and an LED indicator that displays the coil state for easy monitoring.
Large Manual Test Button: Includes a large, easy-to-use manual test button for quick and efficient circuit testing.
Ergonomic Design: Equipped with a finger grip cover for easy insertion/removal, and a transparent window on the cover for visible status checks.
Optional Magnetic Blowout: Available for 2C DC loads to help extinguish arcs and improve performance.
Wide Coil Voltage Range: Supports a wide range of coil voltages – DC: 6-220VDC and AC: 6-240VAC, offering flexibility across different systems.
Environmental Compliance: Fully compliant with RoHS and REACH standards for environmental responsibility.
Applications:
Industrial Automation: Ideal for controlling motors, lights, and other equipment in automated processes, ensuring reliable switching.
Power Distribution: Perfect for use in power control and distribution systems, providing consistent performance under demanding conditions.
HVAC Systems: Great for controlling circuits in heating, ventilation, and air conditioning systems.
Renewable Energy Systems: A reliable choice for use in solar power systems, wind turbines, and other sustainable energy technologies.
Electronics Manufacturing: Ideal for precise switching in electronics and control systems.
Model Description & Ordering Example:
| Code Segment | Description / Options |
|---|---|
| Model | MR19B (BTA11) |
| Contact Form | 2C, 3C |
| Contact Current | Standard (DC 20A, AC 20A) |
| Terminal Form | Blank (S): 6.3×0.8mm; S1: 4.8×0.8mm; S2: 4.8×0.5mm; P1: 2.3×0.8mm; P2: 1.2×0.8mm |
| Cover Style | Blank (C): Standard plain cover; C1: Side flange cover; C4: DIN rail cover |
| Options | M: Manual test button; L: LED indicator; W: With indicator flag; B: Blowout magnet (for 2C DC only) |
| Coil Voltage | DC: 6, 12, 24, 36, 48, 110, 220 VDC; AC: 6, 12, 24, 48, 120, 150, 208, 240 VAC |
| Example Order Mark: | MR19B(BTA11) -3C -S1 -C MLWB -120VAC |
Contact Specifications (20A Model):
| Parameter | Specification |
|---|---|
| Contact Form | 2C, 3C |
| Contact Resistance (initial) | ≤100 mΩ |
| Contact Material | AgSnO₂ |
| Resistive Load Rating | 20A @ 28VDC / 300VAC |
| Motor Load Rating | 3/4 HP @ 120VAC; 1 HP @ 208/300VAC |
| Max. Switching Voltage | 30VDC, 300VAC |
| Max. Switching Current | 20A |
| Max. Switching Power | 560W, 6000VA |
| Electrical Life | 100,000 operations |
| Mechanical Life | 5,000,000 operations |
General Electrical & Mechanical Parameters:
| Parameter | Value |
|---|---|
| Rated Coil Power | DC: 1.44–2.5W; AC: 2.0–3.5VA |
| Insulation Resistance | 1000 MΩ @ 500VDC |
| Operate Time | <20ms |
| Release Time | <20ms |
| Dielectric Strength (1 min) | – Between Open Contacts: 1000VAC – Between Different Poles: 2200VAC – Between Contact and Coil: 2200VAC |
Environmental & Mechanical Specifications:
| Parameter | Value |
|---|---|
| Ambient Temperature | AC Coil: –30°C to +50°C; DC Coil: –30°C to +65°C |
| Ambient Humidity | 5% to 85% RH |
| Shock Stability | 98 m/s² |
| Shock Strength | 980 m/s² |
| Vibration | 10–55 Hz, Double amplitude 1.0mm |
| Weight | 94g |
