Eaton E30-S1NT Heavy Duty Pushbutton industrial control devices

This is the most visible part, determining the appearance and method of operation.

E30-B1NT: Standard round mushroom head emergency stop button (Red, Yellow). Features "push-to-break, twist-to-release" function.

E30-B2NT: Standard round illuminated mushroom head emergency stop button.

E30-P1NT: Standard flush button (Various colors: Red, Green, Yellow, Blue, Black, White).

E30-P2NT: Standard illuminated flush button (Various colors).

E30-K1NT: Key-operated selector switch operator.

E30-K2NT: Illuminated key-operated selector switch operator.

E30-S1NT: Knob-operated selector switch operator.

E30-S2NT: Illuminated knob-operated selector switch operator.

E30-L1NT: Selector/Maintained switch operator (2-position or 3-position).

E30-L2NT: Illuminated Selector/Maintained switch operator.

E30-H1NT: Illuminated rocker switch operator.

Note: In the model numbers, P usually stands for Flush Button, B for Mushroom Head (E-Stop), K for Key, S for Knob, L for Selector/Maintained switch. 1 typically indicates non-illuminated, while 2 indicates illuminated.

2. Common Contact Block Types

The contact block determines the electrical function and mounts under the operator head.

E30-11: 1 Normally Open (1NO) contact.

E30-11 + E30-12: 1 Normally Open + 1 Normally Closed (1NO/1NC) contact combination. This is a very common configuration.

E30-12: 1 Normally Closed (1NC) contact.

E30-21: 2 Normally Open (2NO) contacts.

E30-22: 2 Normally Closed (2NC) contacts.

E30-31: 3 Normally Open (3NO) contacts.

E30-20: Momentary/Maintained contact module. Allows switching the contact action between momentary and maintained (latched) states by rotating the operator.

3. Common Lamp Module Types

If an indicator light is required, a lamp module is installed between the contact block and the operator.

E30-LM2-XX: Standard lamp module. XX represents the voltage code.

Common Voltage Codes:

6: 6V AC/DC

12: 12V AC/DC

24: 24V AC/DC

48: 48V AC/DC

120: 120V AC

240: 240V AC

E30-LM3-XX: Specialized lamp module designed for emergency stop buttons.

4. Complete Model Number Examples

A complete orderable unit is often a combination of these parts. For example:

A Green Illuminated Start Button (24V):

Operator: E30-P2NTG (P2=Illuminated Flush, G=Green)

Lamp Module: E30-LM2-24 (24V)

Contact Block: E30-11 (1NO contact)

Complete Reference: E30-P2NTG + E30-LM2-24 + E30-11

A Red Emergency Stop Button:

Operator: E30-B1NTR (B1=Non-illuminated Mushhead, R=Red)

Contact Block: E30-11 + E30-12 (1NO/1NC - positively guided contacts, a safety requirement)

Complete Reference: E30-B1NTR + (E30-11 + E30-12)

A Two-Position Selector Switch (Non-Illuminated):

Operator: E30-L1NT (Selector Switch)

Contact Block: E30-11 + E30-12 (1NO/1NC)

Complete Reference: E30-L1NT + (E30-11 + E30-12)