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Voltage ratings are in accordance with DIN VDE 0100, and are based on the Test Voltage (the maximum voltage before insulation break-down or spark-over) and a rating factor based on the environment in which the connector is used. Check local applicable standards to ensure compliance, if required.
* Caution: voltage rating standards have changed since this page was published. Use the information on this page as a guide only. *
- Class A0
- Low power equipment used in air-conditioned or dry rooms in circuits that do not permit significant heat generation under short-circuit conditions.
- Class A
- Equipment used in air-conditioned and dry rooms.
- Class B
- Equipment in dwelling spaces, offices and commercial rooms, light assembly areas, laboratories, clinics, hospitals etc.
- Class C
- General industrial, commercial, agricultural, manufacturing, un-air conditioned warehouses etc.
- Class D
- Unprotected connectors on vehicles exposed to brake dust, splashing, snow & ice.
Maximum Operating Voltage Ratings per DIN VDE 0100
| Test V |
Environmental Class |
| A0 |
A |
B |
C |
D |
| AC |
DC |
AC |
DC |
AC |
DC |
AC |
DC |
AC |
DC |
| 375 |
12 |
15 |
|
|
|
|
|
|
|
|
| 500 |
60 |
75 |
30 |
36 |
|
|
|
|
|
|
| 625 |
125 |
150 |
60 |
75 |
|
|
|
|
|
|
| 750 |
250 |
300 |
125 |
150 |
30 |
36 |
|
|
|
|
| 875 |
380 |
450 |
250 |
300 |
60 |
75 |
12 |
15 |
|
|
| 1,000 |
500 |
600 |
380 |
150 |
125 |
150 |
60 |
75 |
|
|
| 1,250 |
660 |
800 |
500 |
600 |
250 |
300 |
125 |
150 |
12 |
15 |
| 1,500 |
750 |
900 |
660 |
800 |
|
|
|
|
60 |
75 |
| 1,750 |
1,000 |
1,250 |
750 |
900 |
380 |
150 |
250 |
300 |
125 |
150 |
| 2,000 |
|
|
|
|
500 |
600 |
|
|
|
|
| 2,250 |
|
|
1,000 |
1,200 |
|
|
380 |
450 |
250 |
300 |
| 2,500 |
|
|
|
|
660 |
800 |
|
|
|
|
| 2,750 |
|
|
|
|
750 |
900 |
500 |
600 |
|
|
| 3,000 |
|
|
|
|
|
|
|
|
380 |
450 |
| 3,500 |
|
|
|
|
1,000 |
1,200 |
750 |
900 |
500 |
600 |
| 4,000 |
|
|
|
|
|
|
|
|
660 |
800 |
| 4,500 |
|
|
|
|
|
|
1,000 |
1,200 |
750 |
900 |
| 5,500 |
|
|
|
|
|
|
|
|
1,000 |
1,250 |
- Example:
- The C5273-4-ET015-2N-0-AM insert has a test voltage rating of 1,750V.
- When used in a steel mill (Class C) it would have a working rating of 250V AC.
- When used on a flight simulator (Class A) it would have a working rating of 750V AC.
Current Ratings
Current ratings are limited by the acceptable rise in temperature of the contact. This is affected by a number of factors, including:
- The allowable temperature of the connector.
- Ambient temperature.
- The current.
- Heat transfer (affected also by the number of pins, their proximity, and the current flowing in adjacent pins).
- The material of the connectors, and the plating.
Single Contacts
Current ratings for single pins are given in the table below, based on: 120°C temperature, 23° ambient, single contact, silver plated brass
Max. Current for single contacts
| Contact Dia. (mm) |
Max. Current (A) |
| 1.5 |
35 |
| 3 |
45 |
| 4 |
50 |
| 5 |
80 |
| 6 |
110 |
Multiple Contacts
Ratings for multiple contacts are greatly complicated by thermal limitations. The "per pin" ratings given in the specification tables for the inserts 95274, 95275, 95273 and 95273 Quick-Change are de-rated based on the number of contacts in the insert, and the probable average loading of each contact.
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