Details

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⚙️ Product Overview

• Model: TRD‑ND

• Function: Star‑Delta timing relay for induction motor starters — automatically transitions from star (Y) to delta (Δ) after a set time 

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🔌 Electrical & Timing Specs

• Supply Voltage: Common AC options — 110 VAC, 220 VAC, 240 VAC (50/60 Hz)

• Allowable Voltage Variation: ±15% of rated voltage 

• Contact Rating: 250 VAC / 5 A (resistive load) 

• Power Consumption: ~3 VA 

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⏱️ Timing & Controls

• Star‑to‑Delta Timing Range: Adjustable via DIP switches from 1 s to 63 s 

• Short Reset Time: Fast reset — TRD version resets ≤ 0.3 s; ND version is similar 

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🧰 Construction & Mounting

• Dimensions (W×H×D): 49 × 61 × 70 mm

• Weight: ~210 g 

• Mounting: Panel-style with DIP-switches and wiring terminals, included in product diagrams 

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🛠️ Reliability & Lifecycle

• Mechanical Life: ~5 million operations

• Electrical Life: ~100,000 switching cycles

• Ambient Conditions: –10 °C to +50 °C, ≤ 85% RH

• Approvals: CE-certified