
X-21s™ | Specifications
X-21s expansion module with four relays can be controlled over the internet with an X-400 or X-600M controller.
Specifications
Power Requirements
- Voltage: 9-28 VDC (supplied via the X-400 or X-600M controller, 24V recommended)
- Max Current:
Power Supply | All Relays OFF | All Relays ON |
---|---|---|
9 VDC | 17 mA | 270 mA |
12 VDC | 13 mA | 189 mA |
24 VDC | 7 mA | 110 mA |
Relay Contacts
- Number of Relays: 4
- Max Voltage: 125VAC, 28VDC
- Max Current: 2.5A
- Contact Type: SPDT (Form C)
- Load Type: General Purpose
- Contact Resistance: < 100 milliohms initial
- Contact Material: AgNi
- Electrical Life: 100K operations (Min)
- Mechanical Life: 5M cycles (Min)
- Environmental Rating: Over voltage Category II, Pollution Degree 2
- Relay Modes: ON/OFF or Pulsed
- Pulse Timer Duration: 0.1 to 86,400 Seconds (1-day)
Connectors
- Relays: 12-Position, 3.81mm terminal spacing, Removable. For 16-28 AWG wire.
- Expansion Connector: Ribbon cable, 10-conductor, polarized, 2x5-position, 0.100" pitch Provides power and communications for expansion modules (Communications: RS-485)
LED Indicators
- Number of LEDs: 5
- Power on
- Relay coil energized 1-4
Physical
- Size:
- 1.41in (35.7mm) wide
- 3.88in (98.5mm) tall
- 3.1in (78mm) deep (not including connector)
- Weight: 4.8 oz (136 g)
- Enclosure Material: Lexan 940 Polycarbonate Plastic
- Enclosure Flame Rating: UL94 V0
Environmental
- Operating Temperature: -40°F to 122°F (-40°C to 50°C)
- Storage Temperature: -40°F to 185°F (-40°C to 85°C)
- Humidity: 5-95%, non-condensing
- Altitude: Up to 2,000m
- Indoor use or NEMA-4 protected location
Electromagnetic Compliance
- IEC CISPR 22, CISPR 24
- FCC 47CFR15 (Class B)
- EN55024 ITE Immunity (2010)
- EN55022 Emissions (2010)
Product Safety Compliance
- IEC 61010-1 (Electrical Equipment for Measurement, Control, and Laboratory Use)



More Information:
ManualsWhere to Buy
Click "Buy Online" to view part numbers and pricing. X-21s is available inthe USA and internationally, and can be purchased either from us or an Authorized Distributor.