900 series relay is 30 and 50 amp heavy duty power relay.
The DELTROL 900 series includes short‑base and long‑base heavy‑duty power relays rated for 30 A to 50 A at various voltages (120‑240 VAC, 277 VAC, 600 VAC). Configurations range from SPST‑NC to DPDT with optional auxiliary contacts and quick‑connect terminations. All versions are UL and cUL listed (file no. E37066).
Electrical specifications feature coil voltages up to 600 V AC (60 Hz) or 125 V DC, insulation resistance of at least 100 MΩ, and contact ratings of 30 A at 120/240 VAC and 50 A at 277 VAC. Mechanical life is rated at 1,000,000 operations with 100,000 electrical cycles. Terminals are screw‑type except the 900Q which uses a .250" quick‑connect.
| Coil Voltage (AC) | Up to 600 V, 60 Hz |
|---|---|
| Coil Voltage (DC) | Up to 125 V |
| Insulation Resistance | 100 MΩ minimum |
| Electrical Life | 100,000 operations |
| Mechanical Life | 1,000,000 operations |
| Contact Rating (30 A) | 30 A at 120/240 VAC |
| Contact Rating (50 A) | 50 A at 277 VAC |
| Weight (Short Base) | 8 oz (227 g) |
The coil can be operated up to 600 V AC at 60 Hz or up to 125 V DC.
The series is covered by UL file numbers E37066 and E74443.
The relay is rated for 1,000,000 mechanical operations.
The 900Q version uses a .250" quick‑connect termination instead of screw terminals.