1437482-7

**Specialty Relays** 

## **VTM7 Series, Repeat Cycle, Timing Module** 

## **Timing Specifications** 

## **Output Switch Data** 

## **Input Data @ 25°C** 

**Timing Mode** — Repeat Cycle **Timing Ranges** — 0.5 to 10 / 3 to 60 sec.; 3 to 60 min. 

**Arrangement** — Solid state 1 Form A (SPST-NO) 

**Voltage (±10%)** — 12 VAC/VDC, 24VAC/VDC, 120 VAC. 

**Rating** — 1A steady state 

**Power Requirement** — 4.3 VA with rated load 

**Timing Adjustment** — External **Expected Electrical Life** — resistor. An external resistance of 1 100,000,000 operations at rated load. megohm is required to obtain the max- **Initial Dielectric Strength** — imum time for all ranges. To determine Between Terminals and Mounting — the actual resistance needed to obtain 3,000VAC rms. the required time delay, use the followBetween Input and Output — ing formula: 1,500VAC rms. 

**Transient Protection** — 

Non-repetitive transients of the following magnitudes will not cause spurious operation of affect function and accuracy. Line voltage with high inductive voltage noise could affect timer performance. Adding transorb or MOV at noise source is recommended. 

- R= (( Creo" Taw) x #,000,009)+5000)ohms 

|Adding transorb or MOV at noise source<br>is recommended.|Adding transorb or MOV at noise source<br>is recommended.|Adding transorb or MOV at noise source<br>is recommended.|
|---|---|---|
|Example:  Contactor coils, motor|||
||**Operating**<br>**Voltage **<br>**<0.1 ms**|**<0.1 ms**<br>**<1 ms**|
|24 VAC/VDC<br>* Min. source impedance of 100 ohms.|12,<br>24 VAC/VDC<br>860V*<br>120 VAC<br>2,580V<br>* Min. source impedance of 100 ohms.|208V*<br>2,150V*<br>* Min. source impedance of 100 ohms.|



## **Product Facts** 

## **Accuracy** — 

Maximum Time:  ±2% at Rt = 1 Megohms 

- n **Repeat cycle timing mode** 

- n **Independently adjustable On and Off times** 

Minimum Time: +0%, -30% Rt = ohms Repeat Accuracy — ±0.5% + 8 ms max (0.25% typical) at constant temperature for load of 10 mA to 1A 

- n **Reliable solid state timing circuitry** 

## **Environmental Data** 

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**Temperature Range** — Storage — -40°C to +85°C Operating — -40°C to +60°C Humidity — 95% relative 

## **Mechanical Data** 

**Mounting** — Panel mount with one #8 screw. 

**Termination** — 0.250 in (6.35) quick connect terminals. 

**Weight** — 4 oz. (112g) approximately 

## **Ordering Information** 

Users should thoroughly review the technical data before selecting a product part number. It is recommended that user also seek out the pertinent approvals files of the agencies/laboratories and review them to ensure the product meets the requirements for a given application. 

**VTM7 A CD | | | Series VTM7 Input Voltage Time Range** Repeat Cycle A = 120VAC CD = 0.5 - 10 sec. Timing Module E = 24VAC/VDC DD = 3 - 60 sec. Q = 12VAC/VDC GD = 3 - 60 min. 

**Authorized distributors are likely to stock the following:** None at present. 

AEROSPACE, DEFENSE & MARINE /// HIGH PERFORMANCE RELAYS