INTERFACE RELAY (Finder 385170240050) 24VDC, 6A, modular

Slim interface relay module, 1 change-over contact (SPDT).

Electrical Characteristics:

• contact configuration: 1 CO (SPDT)
• rated current: 6 A
• peak current: 10 A
• rated voltage: 250 / 400 VAC
• rated load AC1: 1500 VA
• AC15 (230 VAC): 300 VA
• minimum switching load: 500 mW

Coil :

• nominal voltage: 24 VDC
• operating range: 19.2…28.8 VDC (0.8…1.2 UN)
• power consumption: approx. 0.3 W

Construction

• integrated relay and socket in one 6.2 mm module
• screw terminals (box-clamp type)
• integrated LED coil indication
• integrated DC coil suppression

Per piece.

Electrical Interfaces

Coil terminals (control side)

• A1 = +24 VDC
• A2 = 0 VDC

Polarity must be respected (DC sensitive version).

Contact terminals (load side)

• 11 = Common (C)
• 12 = Normally Closed (NC)
• 14 = Normally Open (NO)

Practical Wiring Explanation:

Control wiring (PLC side)

• PLC +24 VDC output → A1
• PLC 0 V → A2

When PLC output activates:

• coil energizes
• LED turns ON
• contact switches from 11–12 to 11–14

Load example – switching 230 VAC lamp

• Phase (L) → 11
• 14 → Lamp
• Lamp → Neutral (N)

When energized, 11–14 closes and lamp turns ON.

Fail-safe use (NC contact)

• Phase → 11
• 12 → Load
• Relay not energized → circuit closed
• Relay energized → circuit opens

Provides galvanic isolation and signal amplification between a 24 VDC control circuit and a load up to 6 A.

Typical uses:

• PLC output interface
• alarm switching
• solenoid control
• signal isolation

Limitations

• single pole only
• not suitable for heavy motor loads beyond AC15 rating
• DC switching capacity decreases significantly above 24 V
• must be installed inside protected enclosure (IP20)