Hearing The Click Of A 5 Volt Relay Switch REK-11 РЕК11

Relay REK-11 is a hermetically sealed electromagnetic relay designed for switching DC and AC circuits (up to 10 kHz). It is widely used in aviation, aerospace, and military equipment due to its high reliability and resistance to extreme conditions.
Key Specifications

Relay Type:

Two-position, single-stable (self-resetting).

2 changeover (SPDT) contacts.

Hermetic housing (protection against moisture, dust, and vibration).

Electrical Parameters:

Coil Voltage:

YAL4.550.005: 27 V ±5% (standard version).

YAL4.550.005-01: 12 V ±10%.

YAL4.550.005-02: 6 V ±10%.

Coil Resistance:

1650 Ω (27 V), 420 Ω (12 V), 105 Ω (6 V).

Operating Current:

From 9 mA (27 V) to 32.6 mA (6 V).

Switching Time: 1–5 ms.

Switching Capabilities:

Max. Current: Up to 3 A (resistive load).

Open-Contact Voltage: Up to 34 V.

Lifespan:

500,000 cycles (low-current loads).

25,000 cycles (inductive loads).

Operating Conditions:

Temperature Range: –60°C to +125°C.

Humidity: Up to 98% at +35°C.

Vibration Resistance: Up to 5000 Hz (300 m/s² acceleration).

Shock Resistance: Up to 5000 m/s² (short-term).

Service Life:

15 years (when stored in a heated facility).

Reduced under harsh conditions (see coefficient table).

Construction & Wiring

Contact Groups:

11, 12, 13 – First group (COM, NO, NC).

21, 22, 23 – Second group (COM, NO, NC).

Contact Material: P-1 alloy with gold plating (Zl1tv).

Contact Resistance: ≤ 0.25 Ω.