800FM-SM44
在产800FM-SM44 4-Position Maintained Selector Switch
Allen-Bradley 800FM emergency stop with push-pull reset.
常见应用
Standard e-stop for Rockwell panels. Wire NC through Guardmaster safety relay for dual-channel monitoring. Found on conveyor systems, packaging, and CNC equipment across North America.
规格参数
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Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
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Maintained selector
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Actuator Type
The button head style. Flush sits level with the bezel (prevents accidental presses). Extended protrudes for easy access.
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Mushroom 40mm
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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UL, CSA, CE
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Color
Button/actuator color. Green = start/go, Red = stop/emergency, Yellow = caution, Blue = reset (per IEC 60204-1).
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Red
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Contact Configuration
1NO + 1NC: One circuit closes and one opens when pressed. Common for start buttons that also signal 'running' state.
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1NC+1NO
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Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
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22mm
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IP Rating
IP66: Dust-tight and withstands powerful water jets from any direction. Standard for outdoor and washdown applications.
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IP66
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安装快速参考
Panel cutout: 22mm. Align the selector positions with the desired panel markings before tightening.
Contact blocks: Attach one contact block per position. Wire each to a separate PLC input for position feedback. A 2-position switch needs 1-2 blocks; 3-position needs 2-3.
尺寸
接线图
故障排除
Not responding to input
Check wiring continuity with a multimeter. Verify the contact block is properly seated. Inspect terminals for loose connections.
快速规格
- Actuator Function
- Maintained selector
- Actuator Type
- Mushroom 40mm
- Certifications
- UL, CSA, CE
- Color
- Red
- Contact Configuration
- 1NC+1NO
用户评价
“800FM-SM44 wired through a Guardmaster MSR127 is the standard AB safety circuit. Push-pull reset, dual channel NC. Works exactly like you expect.”